The picture is a detail from Gregor Mendel counting green and yellow peas in the Augustinian Abbey at Brno. It was painted in the early renaissance style by my friend and long-time colleague Phibus Matile. You will see his name as a co-author on many of the publications listed below. Phibus died in his 80th year on 29 October 2011. He was a brilliant, cultured, amusing, talented, unique man and will be greatly missed.

Copies of many of the papers listed are available as pdf downloads.  Click on the index number if it's underlined.

Click on the button for papers 

140. R Marggraf Turley, H Thomas, JE Archer. 2010. Keats, ‘To Autumn’, and the New Men of Winchester. Review of English Studies (under review).

139. H Thomas. 2011. Plant senescence. In: Biological Systematics (Eds. A Minelli, G Contrafatto). Encyclopedia of Life Support Systems (EOLSS), Developed under the Auspices of the UNESCO, Eolss Publishers, Oxford ,UK, [http://www.eolss.net]

138. RL Jones, H Ougham, H Thomas, SD Waaland. 2011. The Molecular Life of Plants. NJ, Chichester: Wiley (forthcoming)

137. JE Archer, H Thomas, R Marggraf Turley. 2011. The Autumn King: remembering the land in King Lear. Shakespeare Quarterly (in press)

136. PRH Robson, R Kelly, EF Jensen, GD Giddings, M Leitch, C Davey, AP Gay, G Jenkins, H Thomas, IS Donnison. 2011. A flexible quantitative methodology for the analysis of gene-flow between conventionally-bred maize populations using microsatellite markers. Theoretical and Applied Genetics 122:819–829

135. J Raven, H Thomas. 2010. Quick guide: grasses. Current Biology 20: R837-R839

134. LAJ Mur, S Aubry, M Mondhe, A Kingston-Smith, J Gallagher, E Timms-Taravella, C James, I Papp, S Hörtensteiner, H Thomas, H Ougham. 2010. Accumulation of chlorophyll catabolites photosensitizes the hypersensitive response elicited by Pseudomonas syringae in Arabidopsis. New Phytologist 188: 161–174

133. H Thomas, J Archer, R Marggraf Turley. 2011. Evolution, physiology and phytochemistry of the psychotoxic arable mimic weed darnel (Lolium temulentum L). Progress in Botany 72: 73-104

132. C Davey, H Ougham, A Millar, H Thomas, C Tindal, R Muetzelfeldt. 2009. PlaSMo: Making existing crop and plant growth models easily available to the wider scientific and policy making communities. In: Integrated Agricultural Systems: Methodologies, Modelling and Measuring (Eds: MacLeod M et al). Association of Applied Biologists. Aspects of Applied Biology 93, 227

131. C Davey, H Ougham, A Millar, H Thomas, C Tindal, R Muetzelfeldt. 2009. PlaSMo: Making existing plant and crop mathematical models available to plant systems biologists. Comparative Biochemistry and Physiology volume 153A (No2 suppl).

130. R Marggraf Turley, H Thomas, J E Archer. 2010. A tragedy of idle weeds. Times Literary Supplement No. 5577 (19 February 2010) pp 14-15.

129. RN Jones, H Ougham, H Thomas, I Pašakinskienė. 2009. Markers and mapping revisited: finding your gene. New Phytologist 183: 935-966

128. H Thomas. 2010. Leaf senescence and autumn leaf coloration. McGraw Hill 2010 Yearbook of Science and Technology pp 211-214

127. RN Jones, H Thomas. 2009. Genome restructuring in hybrids – a marriage of inconvenience. In: Genetyka i genomika w doskonaleniu roslin uprawnych (Genetics and genomics in crop plant improvement: from a model plant to a new cultivar. Eds B Naganowska, P Kachlicki, P Krajewski) pp 11-28. Poznan, Poland: Instytut Genetyki Roslin PAN w Poznaniu.

126. H Thomas, H Ougham, LAJ Mur, S Jansson. 2011. Senescence and programmed cell death. In: Biochemistry and Molecular Biology of Plants. 2nd edition (eds B Buchanan, W Gruissem, R Jones). NY: Wiley (forthcoming)

125. H Thomas, L Huang, M Young, H Ougham. 2009. Evolution of plant senescence. BMC Evolutionary Biology 9:163 (doi:10.1186/1471-2148-9-163)

124. M Archetti, TF Döring, SB Hagen, NM Hughes, SR Leather, DW Lee, S Lev-Yadun, Y Manetas, HJ Ougham, PG Schaberg, H Thomas. 2009. Unravelling the evolution of autumn colours - an interdisciplinary approach. Trends in Ecology and Evolution 24: 166-173

123. M Archetti, TF Döring, SB Hagen, NM Hughes, SR Leather, DW Lee, S Lev-Yadun, Y Manetas, HJ Ougham, PG Schaberg, H Thomas. 2009. Response to Sinkkonen: Ultraviolet reflectance in autumn leaves and the un-naming of colours. Trends in Ecology and Evolution 24: 237-238

122. H Ougham, H Thomas, Archetti M. 2008. Origin and evolution of autumn colours. New Phytologist 179: 9-13

121. A Gay, H Thomas, M Roca, C James, J Taylor, J Rowland, H Ougham. 2008. Non-destructive analysis of senescence in mesophyll cells by spectral resolution of protein synthesis-dependent pigment metabolism. New Phytologist 179: 663–674

120. H Ougham, S Hörtensteiner, I Armstead, I Donnison, I King, H Thomas L Mur. 2008. The control of chlorophyll catabolism and the status of yellowing as a biomarker of leaf senescence. Plant Biology 10 (supplement 1): 4-14

119. S Jansson, H Thomas. 2008. Senescence: developmental program or timetable? New Phytologist 179: 575–579

118. H Thomas. 2008. Systems Biology and the Biology of Systems: how, if at all, are they related? New Phytologist 177: 11-15

117. I Armstead, Lin Huang, J King, H Ougham, H Thomas, I King. 2007. Rice pseudomolecule-anchored cross-species DNA sequence alignments indicate regional genomic variation in expressed sequence conservation. BMC Genomics 8: 283

116. H Thomas. 2007. Plastid senescence. Part 9 in KJ Hoober (ed) The chloroplast: the organelle that sustains us. Henry Stewart Talks Series (http://www.hstalks.com/chloro/)

115. J King, IP Armstead, IS Donnison, JA Harper, LA Roberts, H Thomas, H Ougham, A Thomas, L Huang, IP King. 2007. Introgression mapping in the grasses. Chromosome Research 15: 105-113

114 H Ougham, I Armstead, C Howarth, I Galyuon, I Donnison, H Thomas. 2007. The genetic control of senescence revealed by mapping quantitative trait loci. Annual Plant Reviews 26: 171-201

113. I Armstead, I Donnison, S Aubry, J Harper, S Hörtensteiner, C James, J Mani, M Moffet, H Ougham, L Roberts, A Thomas, N Weeden, H Thomas, I King. 2007. Cross-species identification of Mendel's I locus. Science 315: 73

112. IS Donnison, AP Gay, H Thomas, KJ Edwards, D Edwards, CL James, AM Thomas, HJ Ougham. 2007. Modification of nitrogen remobilisation, grain fill and leaf senescence in maize (Zea mays L.) by transposon insertional mutagenesis in a protease gene. New Phytologist 173: 481–494

111. I Armstead, I Donnison, S Aubry, J Harper, S Hörtensteiner, C James, J Mani, M Moffet, H Ougham, L Roberts, A Thomas, N Weeden, H Thomas, I King. 2006. From crop to model to crop: identifying the genetic basis of the staygreen mutation in the forage grass Festuca pratensis (Huds.) New Phytologist 172: 592-597

110. I Donnison, D O’Sullivan, A Thomas, P Canter, B Moore, I Armstead, H Thomas, K Edwards, I King. 2005. Construction of a Festuca pratensis BAC library for map-based cloning in Festulolium substitution lines. Theoretical and Applied Genetics 110: 846-851

109. HJ Ougham, P Morris, H Thomas. 2005. The colors of autumn leaves as symptoms of cellular recycling and defenses against environmental stresses. Current Topics in Developmental Biology 66: 135-160

108. PH Canter, H Thomas, E Ernst. 2005. Bringing medicinal plants into cultivation: opportunities and challenges for biotechnology. Trends in Biotechnology 23: 180-185

107. BJ Moore, I Donnison, JA Harper, IP Armstead, J King, H Thomas, RN Jones, TH Jones, HM Thomas, WG Morgan, A Thomas, HJ Ougham, L Huang, PA Fentem, LA Roberts, IP King. 2005. Molecular tagging of a senescence gene by introgression mapping of a mutant stay-green locus from Festuca pratensis. New Phytologist 165: 801-806

106. AH Kingston-Smith, RJ Merry, DK Leemans, H Thomas, MK Theodorou. 2005. Evidence in support of a role for plant-mediated proteolysis in the rumens of grazing animals. British Journal of Nutrition 93: 73-79

105. M Roca, C James, A Pružinská, S Hörtensteiner, H Thomas, H Ougham. 2004. Analysis of the chlorophyll catabolism pathway in leaves of an introgression senescence mutant of Lolium temulentum. Phytochemistry 65: 1231-1238

104. PRH Robson, IS Donnison, Kan Wang, B Frame, SEl Pegg, A Thomas, H Thomas. 2004. Leaf senescence is delayed in maize expressing the Agrobacterium IPT gene under the control of a novel maize senescence-enhanced promoter. Plant Biotechnology Journal 2: 101-112

103. Q Li, PRH Robson, AJE Bettany, TLW Carver, IS Donnison, H Thomas, IM Scott. 2004. Modification of senescence in ryegrass transformed with IPT under the control of a monocot senescence-enhanced promoter. Plant Cell Reports 22: 816-821

102. H Thomas. 2003. Do green plants age and if so how? Topics in Current Genetics 3: 145-171

101. H Thomas, HJ Ougham, C Wagstaff, AJ Stead. 2003. Defining senescence and death. Journal of Experimental Botany 54: 1127-1132

100. JH Macduff, MO Humphreys, H Thomas. 2002. Effects of a stay-green mutation on plant nitrogen relations in Lolium perenne L. during N starvation and after defoliation. Annals of Botany 89: 11-21

099. H Thomas, H Ougham, P Canter, I Donnison. 2002. What stay-green mutants tell us about nitrogen remobilisation in leaf senescence. Journal of Experimental Botany 53: 801-808

098. H Thomas. 2002. Ageing in plants. Mechanisms of Ageing and Development 123: 747-753

097. H Thomas, H Ougham, S Hörtensteiner. 2001. Recent advances in the cell biology of chlorophyll catabolism. Advances in Botanical Research 35: 1-52

096. A M Jones, S Coimbra, A Fath, M Sottomayer, H Thomas. 2001. Programmed cell death assays for plants. In: Methods in Cell Biology: Cell Death, Second Edition (ed L Schwartz, J Ashwell) 66: 437-451. San Diego: Academic Press

095. H Thomas, V O Sadras. 2001. The capture and gratuitous disposal of resources by plants. Functional Ecology 15: 3-12

094. H Thomas, I Donnison. 2000. Back from the brink: plant senescence and its reversibility. In: Programmed Cell Death in Animals and Plants (eds J Bryant, S G Hughes, J M Garland) pp 149-162. Oxford: Bios

093. H Thomas, H M Thomas, H Ougham. 2000. Annuality, perenniality and cell death. Journal of Experimental Botany 51: 1-8

092. Q Li, A J E Bettany, I Donnison, C M Griffiths, H Thomas, I M Scott. 2000. Characterisation of a cysteine protease cDNA from Lolium multiflorum (Lam.) leaves and its expression during senescence and cytokinin treatment. Biochimica et Biophysica Acta 1492: 233-236

091. S Hörtensteiner, J Chinner, P Matile, H Thomas, I S Donnison. 2000. Chlorophyll breakdown in Chlorella protothecoides: characterization of degreening and cloning of degreening related genes. Plant Molecular Biology 42: 439-450

090. T Langdon, C Seago, M Mende, J M Legget, H M Thomas, J W. Forster, H Thomas, R N Jones, G Jenkins.. 2000. Retrotransposon evolution in diverse plant genomes. Genetics 156: 313-325

089. J L Dangl, RA Dietrich, H Thomas. 2000. Senescence and programmed cell death. In: Biochemistry and Molecular Biology of Plants (eds B Buchanan, W Gruissem, R Jones) pp 1044-1100. Rockville: ASPP

088. H Thomas, C J Howarth. 2000. Five ways to stay green. Journal of Experimental Botany 51: 329-337

087. T Langdon, C Seago, R N Jones, H J Ougham, H Thomas, J W Forster, G Jenkins. 2000. De novo evolution of satellite DNA on the rye B chromosome. Genetics 154: 869-884

086. W-Y Zhu, A H Kingston-Smith, D Troncoso, R J Merry, D R Davies, G Pichard, H Thomas, M K Theodorou. 1999. Evidence in favour of plant-mediated proteolysis in the rumen. Journal of Dairy Science 82: 1-8

085. H A Zavaleta-Mancera, B J Thomas, H Thomas, I M Scott. 1999. Regreening of senescent Nicotiana leaves. II. Redifferentiation of plastids. Journal of Experimental Botany 50: 1683-1689

084. H A Zavaleta-Mancera, K A Franklin, H J Ougham, H Thomas, I M Scott. 1999. Regreening of senescent Nicotiana leaves. I. Reappearance of NADPH-protochlorophyllide oxidoreductase and light-harvesting chlorophyll a/b-binding protein. Journal of Experimental Botany 50: 1677-1682

083. H Thomas, W G Morgan, A M Thomas, H J Ougham. 1999. Expression of the stay-green character introgressed into Lolium temulentum Ceres from a senescence mutant of Festuca pratensis. Theoretical and Applied Genetics 99: 92-99

082. P Matile, S Hörtensteiner, H Thomas. 1999. Chlorophyll degradation. Annual Review of Plant Physiology and Plant Molecular Biology 50: 67-95

081. H Thomas. 1998. Air today - gone tomorrow. New Phytologist 139: 225-229

080. A H Kingston-Smith, H Thomas, C H Foyer. 1997. Chlorophyll a fluorescence, enzyme and antioxidant analysis provide evidence for the operation of an alternative electron sink during leaf senescence in a stay-green mutant of Festuca pratensis. Plant Cell and Environment 20: 1323-1337

079. R N Jones, H J Ougham, H Thomas. 1997. Markers and mapping; we are all geneticists now. New Phytologist 137: 165-177

078. H Thomas, C Evans, H M Thomas, M W Humphreys, G Morgan, B Hauck, I Donnison. 1997. Introgression, tagging and expression of a leaf senescence gene in Festulolium. New Phytologist 137: 29-34

077. S Rodoni, W Mühlecker, M Anderl, B Kräutler, D Moser, H Thomas, P Matile, S Hörtensteiner. 1997. Chlorophyll breakdown in senescent chloroplasts. Cleavage of phaeophorbide a in two enzymic steps. Plant Physiology 115: 669-676

076. B Hauck, A P Gay, J Macduff, C M Griffiths, H Thomas. 1997. Leaf senescence in a non-yellowing mutant of Festuca pratensis: implications of the stay-green mutation for photosynthesis, growth and nitrogen nutrition. Plant Cell and Environment 20: 1007-1018

075. C M Griffiths, S E Hosken, D Oliver, J Chojecki, H Thomas. 1997. Sequencing, expression pattern and RFLP mapping of a senescence-enhanced cDNA from Zea mays with high homology to oryzain γ and aleurain. Plant Molecular Biology 34: 815-821

074. H Thomas. 1997. Chlorophyll: a symptom and a regulator of plastid development. New Phytologist 136: 163-181

073. P Matile, S Hörtensteiner, H Thomas, B Kräutler. 1996. Chlorophyll breakdown in senescent leaves. Plant Physiology 112: 1403-1409

072. H Thomas, L de Villiers. 1996. Gene expression in rosette leaves of Arabidopsis thaliana induced to senesce by nutrient deprivation. Journal of Experimental Botany 47: 1845-1852

071. H Thomas, M Schellenberg, F Vicentini, P Matile. 1996. Gregor Mendel’s green and yellow pea seeds. Botanica Acta 109: 3-4

070. K Morris, H Thomas, L J Rogers. 1996. Endopeptidases during the development and senescence of Lolium temulentum leaves. Phytochemistry 41: 377-384

069. A P Gay, H Thomas. 1995. Leaf development in Lolium temulentum: photosynthesis in relation to growth and senescence. New Phytologist 130: 159-168

068. H Thomas, J L Stoddart. 1995. Temperature sensitivities of Festuca arundinacea and Dactylis glomerata ecotypes. New Phytologist 130: 125-134

067. F Vicentini, S Hörtensteiner, M Schellenberg, H Thomas, P Matile. 1995. Chlorophyll breakdown in senescent leaves: identification of the biochemical lesion in a stay-green genotype of Festuca pratensis Huds. New Phytologist 129: 247-252

066. C Smart, S Hosken, H Thomas, J Greaves, B Blair, W Schuch. 1995. The timing of maize leaf senescence and characterisation of senescence-related cDNAs. Physiologia Plantarum 93: 673-682

065. B Biswal, LJ Rogers, AJ Smith, H Thomas. 1994. Carotenoid composition and its relationship to chlorophyll and D1 protein during leaf development in a normally senescing cultivar and a stay-green mutant of Festuca pratensis. Phytochemistry 37: 1257-1262

064. A Bachmann, J Fernández-López, S Ginsburg, H Thomas, J C Bouwkamp, T Solomos, P Matile. 1994. Stay-green genotypes of Phaseolus vulgaris. Chloroplast proteins and chlorophyll catabolites during foliar senescence. New Phytologist 126: 593-600

063. H Thomas. 1994. Aging in the plant and animal kingdoms - the role of cell death. Reviews in Clinical Gerontology 4: 5-20

062. H Thomas, C M Smart. 1993. Crops that stay green. Annals of Applied Biology 123: 193-219

061. M Schellenberg, P Matile, H Thomas. 1993. Production of a presumptive chlorophyll catabolite in vitro: requirement for reduced ferredoxin. Planta 191: 417-420

060. H Thomas, U Feller. 1993. Leaf development in Lolium temulentum: differential susceptibility of transaminase isoenzymes to proteolysis. Journal of Plant Physiology 142: 37-42

059. T Mae, H Thomas, A P Gay, A Makino, J Hidema. 1993. Leaf development in Lolium temulentum: photosynthesis and photosynthetic proteins in leaves senescing under different irradiances. Plant and Cell Physiology 34: 391-399

058. L P Nock, L J Rogers, H Thomas. 1992. Metabolism of protein and chlorophyll in leaf tissue of Festuca pratensis Huds. during chloroplast assembly and senescence. Phytochemistry 31: 1465-1470

057. H Thomas, H J Ougham, T G E Davies. 1992. Leaf senescence in a non yellowing mutant of Festuca pratensis: transcripts and translation products. Journal of Plant Physiology 139: 403-412

056. T G E Davies, L J Rogers, B J Thomas, H Thomas. 1990. Leaf development in Lolium temulentum: formation of the photosynthetic apparatus in the presence of the porphyrin synthesis inhibitor gabaculine. Journal of Experimental Botany 41: 905-917

055. T G E Davies, H Thomas, B J Thomas, L J Rogers. 1990. Leaf senescence in a non yellowing mutant of Festuca pratensis: metabolism of cytochrome f. Plant Physiology 93: 588-595

054. M Schellenberg, P Matile, H Thomas. 1990. Breakdown of chlorophyll in chloroplasts of senescent barley leaves depends on ATP. Journal of Plant Physiology 136: 564-568

053. C Peisker, H Thomas, F Keller, P Matile. 1990. Radiolabelling of chlorophyll for studies on catabolism. Journal of Plant Physiology 136: 544-549

052. H Thomas. 1990. Leaf development in Lolium temulentum: protein metabolism during development and senescence of attached and excised leaf tissue. Journal of Plant Physiology 136: 45-50

051. T G E Davies, H Thomas, L J Rogers. 1990. Immunological quantification of cytochrome f in leaves of a non yellowing senescence mutant of Festuca pratensis. Photosynthesis Research 24: 99-108

050. P Matile, T Duggelin, M Schellenberg, D Rentsch, K Bortlik, C Peisker, H Thomas. 1989. How and why is chlorophyll broken down in senescent leaves? Plant Physiology and Biochemistry 27: 595-604

049. T G E Davies, L J Rogers, H Thomas. 1989. Purification and antigenicity of cytochrome f from meadow fescue, Festuca pratensis Huds. and cross reactivity of the antibodies with the protein from other plant species. Plant Physiology and Biochemistry 27: 889-898

048. A Thomas, A D Tomos, J L Stoddart, H Thomas, C J Pollock. 1989. Cell expansion rate, temperature and turgor pressure in growing Lolium temulentum leaves. New Phytologist 112: 1–5

047. P Hilditch, H Thomas, K Lucas. 1989. Kinetic implications of structural modification in protein turnover. BioSystems 22: 241–248

046. P Hilditch, H Thomas, B J Thomas, L J Rogers. 1989. Leaf senescence in a non yellowing mutant of Festuca pratensis: proteins of Photosystem II. Planta 177: 265–272

045. H Thomas, K Bortlik, D Rentsch, M Schellenberg, P Matile. 1989. Catabolism of chlorophyll in vivo: significance of polar chlorophyll catabolites in a non yellowing senescence mutant of Festuca pratensis. New Phytologist 111: 3–8

044. T G E Davies, H J Ougham, H Thomas, L J Rogers. 1989. Leaf development in Lolium temulentum L.: plastid membrane polypeptides in relation to assembly of the photosynthetic apparatus and leaf growth. Physiologia Plantarum 75: 47–54

043. P Matile, S Ginsburg, M Schellenberg, H Thomas. 1988. Catabolites of chlorophyll in senescing barley leaves are localized in the vacuoles of mesophyll cells. Proceedings of the National Academy of Sciences, USA 85: 9529–9532

042. T Duggelin, K Bortlik, H Gut, P Matile, H Thomas. 1988. Leaf senescence in Festuca pratensis: accumulation of lipofuscin like compounds. Physiologia Plantarum 74: 131–136

041. H Thomas, P Matile. 1988. Photobleaching of chloroplast pigments in leaves of a non yellowing mutant genotype of Festuca pratensis. Phytochemistry 27: 345–348

040. H Thomas. 1987. Sid: a Mendelian locus controlling thylakoid membrane disassembly in senescing leaves of Festuca pratensis. Theoretical and Applied Genetics 73: 551–555

039. P Matile, S Ginsburg, M Schellenberg, H Thomas. 1987. Catabolites of chlorophyll in senescent leaves. Journal of Plant Physiology 129: 219–228

038. H Gut, C Rutz, P Matile, H Thomas. 1987. Leaf senescence in a non yellowing mutant of Festuca pratensis: degradation of carotenoids. Physiologia Plantarum 70: 659–663

037. H J Ougham, H Thomas, P Hilditch. 1987. Leaf development in Lolium temulentum L.: gradients of expression of growth and photosynthesis related polypeptides revealed by immunoblotting. Journal of Plant Physiology 129: 181–186

036. J L Stoddart, H Thomas. 1986. The use of microcomputers for general purpose laboratory data capture. Chemistry and Industry 26: 222–230

035. H Thomas. 1986. The role of polyunsaturated fatty acids in senescence. Journal of Plant Physiology 123: 97–105

034. J L Stoddart, H Thomas, E J Lloyd, C J Pollock. 1986. The use of a temperature profiled position transducer for the study of low temperature growth in Gramineae: equipment design and output interpretation. Planta 167: 359–363

033. P Hilditch, H Thomas, L J Rogers. 1986. Leaf senescence in a non yellowing mutant of Festuca pratensis: photosynthesis and photosynthetic electron transport. Planta 167: 146–151

032. B Luthy, P Matile, H Thomas. 1986. Properties of linolenic acid dependent chlorophyll oxidation in thylakoid membranes. Journal of Plant Physiology 123: 169–180

031. B Luthy, H Thomas, P Matile. 1986. Linolenic acid dependent "chlorophyll oxidase" activity: a property of Photosystems I and II. Journal of Plant Physiology 123: 203–209

030. P Hilditch, H Thomas, L J Rogers. 1986. Two processes for the breakdown of the QB protein of chloroplasts. FEBS Letters 208: 313–316

029. H Thomas, J F Potter. 1985. Fitting logistic type curves to extension growth data for leaves of grass species by means of the Maximum Likelihood Program: analysis of leaf extension in Lolium temulentum at optimal and chilling temperatures. Environmental and Experimental Botany 25: 157–163

028. H Thomas, B Luthy, P Matile. 1985. Leaf senescence in a non yellowing mutant of Festuca pratensis Huds. Oxidative chlorophyll bleaching by thylakoid membranes during senescence. Planta 164: 400–405

027. B Luthy, E Martinoia, P Matile, H Thomas. 1984. Thylakoid associated "chlorophyll oxidase": distinction from lipoxygenase. Zeitschrift fur Pflanzenphysiologie 113: 423–434

026. H Thomas, J J Rowland, J L Stoddart. 1984. A microprocessor based instrument for measuring plant growth. Journal of Microcomputer Applications. 7: 217–223

025. H Thomas, J L Stoddart. 1984. Kinetics of leaf growth in Lolium temulentum at optimal and chilling temperatures. Annals of Botany 53: 341–347

024. C J Pollock, E J Lloyd, H Thomas, J L Stoddart. 1984. Changes in photosynthetic capacity during prolonged growth of Lolium temulentum at low temperature. Photosynthetica 18: 478–481

023. C J Pollock, E J Lloyd, J L Stoddart, H Thomas. 1983. Growth, photosynthesis and assimilate partitioning in Lolium temulentum exposed to chilling temperatures. Physiologia Plantarum 59: 257–262

022. H Thomas. 1983. Leaf senescence in a non yellowing mutant of Festuca pratensis. IV. Senescence in the light. Photosynthetica 17: 506–514

021. H Thomas. 1983. Analysis of the response of leaf extension to chilling temperatures in Lolium temulentum seedlings. Physiologia Plantarum 57: 509–513

020. H Thomas. 1983. Analysis of the nitrogen response of leaf extension in Lolium temulentum seedlings. Annals of Botany 51: 363–371

019. J L Stoddart, H Thomas. 1982. Leaf senescence. Encyclopedia of Plant Physiology (New Series) 14A: 592–636

018. J L Harwood, A V H M Jones, H Thomas. 1982. Leaf senescence in a non yellowing mutant of Festuca pratensis. III. Total acyl lipids of leaf tissue during senescence. Planta 156: 152–157

017. H Thomas. 1982. Leaf senescence in a non yellowing mutant of Festuca pratensis. II. Proteolytic degradation of thylakoid and stroma polypeptides. Planta 154: 219–223

016. H Thomas. 1982. Leaf senescence in a non yellowing mutant of Festuca pratensis. I. Chloroplast membrane polypeptides. Planta 154: 212–218

015. H Thomas. 1982. A procedure for resolving overlapping curves suitable for use with a microcomputer. Analytical Biochemistry 120: 101–105

014. H Thomas, R C Huffaker. 1981. Hydrolysis of radioactively labelled ribulose 1,5 bisphosphate carboxylase by an endopeptidase from the primary leaf of barley seedlings. Plant Science Letters 20: 251–262

013. H Thomas, J L Stoddart. 1980. Leaf senescence. Annual Review of Plant Physiology 31: 83–111

012. H Thomas, J L Stoddart, J F Potter. 1980. Temperature responses of membrane associated activities from spring and winter oats. Plant Cell and Environment 3: 271–277

011. J A Pearson, K Thomas, H Thomas. 1978. Nucleic acids from leaves of a yellowing and a non yellowing variety of Festuca pratensis. Planta 144: 85–87

010. H Thomas. 1978. Enzymes of nitrogen mobilization in detached leaves of Lolium temulentum during senescence. Planta 142: 161–169

009. H Thomas, M J Bingham. 1977. Isoenzymes of naphthyl acetate esterase in senescing leaves of Festuca pratensis. Phytochemistry 16: 1887–1889

008. H Thomas. 1977. Ultrastructure, polypeptide composition and photochemical activity of chloroplasts during foliar senescence of a non yellowing mutant genotype of Festuca pratensis. Planta 137: 53–60

007. H Thomas. 1976. Delayed senescence in leaves treated with the protein synthesis inhibitor MDMP. Plant Science Letters 6: 369–377

006. H Thomas, J L Stoddart. 1975. Separation of chlorophyll degradation from other senescence processes in leaves of a mutant genotype of meadow fescue (Festuca pratensis). Plant Physiology 56: 438–441

005. H Thomas. 1975. Regulation of alanine aminotransferase in leaves of Lolium temulentum during senescence. Zeitschrift fur Pflanzenphysiologie 74: 208–212

004. H Thomas, J L Stoddart. 1974. Subcellular distribution of alanine aminotransferase in leaves of Lolium temulentum. Phytochemistry 13: 1053–1058

003. J L Stoddart, H Thomas, A Robertson. 1973. Protein synthesis patterns in barley embryos during germination. Planta 112: 309–321

002. H Thomas, D P Webb, P F Wareing. 1973. Seed dormancy in Acer: maturation in relation to dormancy in Acer pseudoplatanus. Journal of Experimental Botany 24: 958–967

001. H Thomas. 1973. Gel electrophoresis of ribosomal components from seeds of Pisum sativum. Experimental Cell Research 77: 298–302

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