Our laboratory is interested in learning the molecular mechanisms involved in photomorphogenesis and plant development with tomato (Lycopersicon esculentum) as a model system. The current research in our lab is focussed on the following lines

Molecular analysis of Photomorphogenesis

Molecular genetics of plant development using tomato mutants

We are also a part of the International Solanaceae Genomics Project (SOL)

PhD and Post-doctoral positions

• Kavitha M, Bauer P, Sharada MS, Al-Hammadi AS, Sharma R (2006) Genetic characterization of the polycotyledon locus in tomato. Theoretical and Applied Genetics 113: 673-683

• Appenroth KJ, Lenk G, Goldau L, Sharma R (2006) Tomato seed germination: Regulation of different response modes by phytochrome B2 and phytochrome A . Plant Cell Environment 29: 701–709

• †Lukas A. Mueller*, Steven D. Tanksley, Jim J. Giovannoni, Joyce van Eck, Stephen Stack, Doil Choi, Byung Dong Kim, Mingsheng Chen, Zhukuan Cheng, Chuanyou Li, Hongqing Ling, Yongbiao Xue, Graham Seymour, Gerard Bishop, Glenn Bryan, Rameshwar Sharma, Jiten Khurana, Akhilesh Tyagi, Debasis Chattopadhyay, Nagendra K. Singh, Willem Stiekema, P. Lindhout, Taco Jesse, Rene Klein Lankhorst, Mondher Bouzayen, Daisuke Shibata, Satoshi Tabata, Antonio Granell, Miguel A. Botella, Giovanni Giuliano, Luigi Frusciante, Mathilde Causse, Dani Zamir (2005) The Tomato Sequencing Project, the first cornerstone of the International Solanaceae Project (SOL) Comp Funct Genom 2005; 6: 153–158 Reprint

• Srinivas A, Behera RK, Kagawa T, Wada M, Sharma R (2004) High Pigment1 Mutation Negatively Regulates Phototropic Signal Transduction in Tomato Seedlings. Plant Physiology 134:790-800 Reprint

• Al-Hammadi ASA, Sreelakshmi Y, Negi S, Siddiqi I, Sharma R (2003) The polycotyledon Mutant of Tomato Shows Enhanced Polar Auxin Transport. Plant Physiol 133:113-125 Reprint Recommended by Faculty of 1000

• Sharma R (2001) Impact of Solar UV-B on Tropical Ecosystems and Agriculture. Case Study: Effect of UV-B on Rice. Proceedings of SEAWPIT 1998 & 2000 1:92-101 Reprint (Cover page article- Plant Physiology September 2003)

• Sharma R (2001) Phytochrome: A Serine Kinase Illuminates the Nucleus. Current Science 80: 178-188 Reprint

• Sarma AD, Sharma R (1999) Anthocyanin-DNA copigmentation complex: Mutual protection against oxidative damage. Phytochemistry 52: 1313-1318 Reprint

• Singh A, Selvi MT, Sharma R (1999) Sunlight-induced anthocyanin pigmentation in maize vegetative tissues. J Exp Bot 50: 1619-1625 Reprint

• Datta R, Sharma R (1999) Temporal and Spatial Regulation of Nitrate Reductase and Nitrite Reductase in Greening Maize Leaves. Plant Science 144: 77-83 Reprint

• Datta R, Vally KJM, Sharma R (1999) Sugar Mimics the Light-Mediated b-Amylase Induction and Distribution in Maize and Pearl Millet Leaves. J Plant Physiol 154: 665-672

• Datta R, Selvi MT, Seetharama N, Sharma R (1999 ) Stress-mediated enhancement of b-amylase activity in pearl millet and maize leaves is dependent on light. J Plant Physiol 154: 657-664

• Sharma R, Kendrick RE (1999) Use of Mutants and Transgenics in Understanding Photomorphogenesis. In "Concepts in Photobiology, Photosynthesis and Photomorphogenesis" Ed. Ed. Singhal GS, Renger G, Sopory SK, Irrgang K-D and Govindjee, pp 930-961, Narosa, New Delhi

• Sarma AD, Sharma R (1999) Purification and characterization of UV-B induced phenylalanine ammonia lyase from rice seedlings. Phytochemistry 50: 729-737 Reprint

• Sarma AD, Sreelakshmi YSL, Sharma, R (1998) Differential Expression and Properties of Phenylalanine Ammonia-Lyase Isoforms in Tomato Leaves. Phytochemistry 49: 2233-2243 Reprint

• Subbarao KV, Datta R, Sharma R (1998) Amylases synthesis in scutellum and aleurone layer of maize seeds. Phytochemistry 49: 657-666 Reprint

• Reddy RK, Sharma R (1998) Spatial Distribution and Temporal Regulation of Phytochrome A and Phytochrome B Levels in Maize Seedlings. Plant Physiol Biochem 36: 737-745 Reprint

• Khurana JP, Kochhar A, Jain PK, Poff KL, Sharma RP, Tyagi AK (1997) Characterization of a new class of mutants defining novel set of photomorphogenic repressors. In "Plant Molecular Biology and Biotechnology". Ed Tewari KK and Singhal GS, Narosa, New Delhi, India pp 115-123

• Vally KJM, Datta R, Sharma R (1997) Starch degrading enzymes in green leaves: Regulation and role in mobilization of transitory starch. Agros Ann Rev Plant Physiol 3: 139-175

• Sarma AD, Sreelakhsmi Y, Sharma R (1997) Antioxidant ability of anthocyanins against ascorbic acid oxidation. Phytochemistry 45: 671-674 Reprint

• Sangeetha B, Sharma R (1996) Photoregulation and characterization of a pelletable ATPase from cotyledons of mustard (Sinapis alba L.) seedlings. Proc Nat Acad Sci India 66(B): Spl Vol 31-46

• Vally KJM, Selvy MT, Sharma R (1995) Light alters cytosolic and plastidic phosphorylase distribution in pearl millet leaves.Plant Physiol 109: 517-523 Reprint

• Vally KJM, Sharma R (1995) Light-induced chloroplast a-amylase in pearl millet (Pennisetum americanum). Plant Physiol 107: 401-405Reprint

• Reddy VS, Goud KV, Sharma R, Reddy AR (1994) UV-B responsive anthocyanin production in a rice cultivar is associated with a specific phase of phenylalanine ammonia lyase biosynthesis. Plant Physiol 105: 1059-1066 Reprint

• Goud KV, Sharma R (1994) Retention of photoinduction of cytosolic enzymes in aurea mutant of tomato (Lycopersicon esculentum). Plant Physiol 105: 643-650 Reprint

• Sharma R, López-Juez E, Nagatani A, Furuya M (1993) Identification of photo-inactive phytochrome A in etiolated seedlings and photo-active phytochrome B in green leaves of the aurea mutant of tomato. Plant Journal 4: 1035-1042 Reprint

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