Abstract
Plant water relations, proline content and activities of pyrroline-5-carboxylate synthetase (P5CS) and proline oxidase (PO) were studied in five Brassica juncea genotypes differing in drought response. Under water stress, drought tolerant cv Varuna showed maximum osmotic adjustment value (1/b) of 3.21. In this variety, proline content increased from 8.4 and 5.3 μmol g−1 dry weight under normal conditions to 128.2 and 44.5 μmol g−1 dry weight under stress conditions in the leaves and roots respectively. The increase in proline content in less drought tolerant variety Prakash was from 7.0 and 1.8 μmol g−1 dry weight In the absence of stress to 62.9 and 13.4 μmol g−1 dry weight in the presence of stress in leaves and roots respectively. Compared to the respective controls, increase in the activity of proline biosynthetic enzyme P5CS of roots and leaves under water stress was maximum (∼ 94%) in Varuna and minimum in Prakash (∼16%). Reduction in the activity of proline degrading enzyme PO due to stress was also maximum in the leaves (75%) and roots (87%) of Varuna. These results showed genotype dependent effect of water stress on plant water relations and proline metabolism.
References
Bray EA, Plant Physiol, 103 (1993) 1035.
Jones MM & Turner NC, Plant Physiol, 61 (1978) 122.
Morgan JM, J Exptl Bot, 31 (1980) 655.
Delauney AJ and Verma DPS, Plant J, 4 (1993) 215
Jain S, Nainawatee HS, Jain RK & Chowdhury JB, Plant Cell Reports, 4 (1991) 684.
Trotel R, Bouchereau A, Niogret MF & Larher, F, Plant Sci, 118 (1996) 31.
Venekamp JH, Lampe JEM & Koot JTM, J Plant Physiol, 133 (1989) 654.
Stewart CR & Hansen AD, Monosanto Lectures, Plant Sci, (1981) 172.
Dix PJ & Pearce RS. Z Pflanzenphysiol, 102 (1981) 243.
Voshuba V, Kiyosue, Nakashima K, Vawaguchi-Shinozaki K & Shinozaki K, Plant Cell Physiol, 38 (1997) 1095.
Kandpal RP, Vidyanathan CS, Udaykumar M, Krisnasastry KS & Appaji-Rao N, J Biol Sci, 3 (1981) 361.
Madan S, Nainawatee HS, Jain RK & Chowdhury JB, Ann Bot, 76 (1995) 51.
Chhabra ML, Dhingra HR & Vadav TP, Indian J Plant Physiol, 24 (1981) 8.
Jain RK, Jain S, Nainawatee HS & Chowdhury JB, Euphytica, 48 (1990) 141.
Arnon DI & Hoagland DR, Soil Sci, 50 (1940) 299.
Turner NC, Plant Soil, 58 (1981) 339.
Morgan JM, Annu Rev Plant Physiol, 35 (1984) 299.
Bates LS, Waldren RP & Teare ID, Plant Soil, 39 (1973) 205.
Lowry OH, Rosebrough NJ, Farr AL & Randall RJ, J Biol Chem, 193 (1951) 265
Hayzer DJ & Leisinger T, J Gen Microbiol, 118 (1980) 287.
Strecker HJ, Methods Enzymol, 17B (1971) 251.
Smith LI & Opie JW, in Organic synthesis (EC Harring, Editor) John Wiley, New York (1967) pp 56–58.
Ashraf M & Mahmood S, Environ Expt Bot, 30 (1990) 93.
Morgan JM, Field Crop Res, 29 (1992) 91.
Patel JA & Vora AB, Plant Soil, 84 (1985) 427.
Ketchum REB, Warren RS, Klima LJ, Lopez-Gutieere F & Nabors MW, J Plant Physiol, 137 (1991) 368.
Aspinall D & Paleg LG, in The Physiology and biochemistry of drought resistance in plants (LG Paleg, D Aspinall, Editors), Academic Press, Sydney (1981) pp 205–241.
Kneh JSH & Bright JWJ, Plant Sci Lett, 27 (1982) 233.
Wldholm JM, Iowa State J Res, 62 (1988) 587.
Watad AEA, Reinhold L & Lerner HR, Plant Physiol, 73 (1983) 624.
Kavikishore PB, Hang Z, Miao G, Hu C & Verma DPS, Plant Physiol, 108 (1995) 1387.
Strizhof N, Abraham E, Okresz L, Blickllng S, Zilberstein L, Schell, J, Koncz C & Szabados L, Plant J, 12 (1997) 557.
Charest C & Phan CT, Physiol Plant, 80 (1990) 159.
Kohl DH, Lin JJ, Shearer G & Schubert KR, Plant Physiol, 94 (1990) 1258.
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Phutela, A., Jain, V., Dhawan, K. et al. Proline Metabolism Under Water Stress in the Leaves and Roots of Brassica juncea Cultivars Differing in Drought Tolerance. J. Plant Biochem. Biotechnol. 9, 35–39 (2000). https://doi.org/10.1007/BF03263081
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DOI: https://doi.org/10.1007/BF03263081