Impact of water stress on photosynthesis and secondary metabolites in snap melon and musk melon
Keywords:
Drought stress, secondary metabolites, Water use efficiency, Carboxylation efficiencyAbstract
A study was conducted to assess the impact of water stress on physiological activities and metabolite constitution in
musk melon and snap melon. The field grown plants were subjected to water stress for 5 and 10 days when the plants were 45
days old. Subsequently, the stressed plants were re-irrigated and allowed to recover up to 15 days after re-irrigation. The data
on photosynthetic rate and associated parameters and secondary metabolites such as total sugar, phenols, alkaloids, tannins
and flavonoid content were assessed at every stage. The data revealed that snap melon the photosynthetic rate recovered fast
and nearly reached to the values in control plants, however in musk melon the recovery was low. The data on flavonoid
constitution of snap melon reveals that the magnitude of this metabolite increases with imposition of stress as well as age of
plants showing thereby that the plants have potential to scavenge the ROS moieties developed due to water stress.
Downloads
References
Comic, G. 1994. Drought stress and high light effects on leaf photosynthesis. In: Baker, N.R., Bowyer, J.R. (Eds.), Photoinhibition of Photosynthesis: From Molecular Mechanisms to the Field. BIOS Scientific Publishers, Oxford, pp. 297-313.
Ebrahimzadeh, M.A., Pourmorad, F., & Hafezi, S. 2008. Antioxidant activities of Iranian corn silk. Turk. J. Biol., 32: 43-49.
Flexas, J., & Medrano, H. 2002. Drought-inhibition of photosynthesis in C3 plants: stomatal and non-stomatal limitations revisited. Annals of Botany, 89: 183-189.
Malick, C.P., & Singh, M.B. 1980. In: Plant Enzymology and Risto-enzymology. Kalyani Publications, New Delhi, pp. 286.
Parry, M.A.J., Andralojc, P.J., Khan, S., Lea, P.J., & Keys, A.J. 2002. Rubisco activity: effects of drought stress. Ann. Bot., 89: 833-839.
Qureshi, M.J., Qadir, S., & Zolla, L. 2007. Proteomic-based dissection of stress-responsive pathways in plants. J. Plant Physiol., 164: 1239-1260.
Ramanjulu, S., Sreenivasulu, N., & Sudhakar, C. 1998. Effect of water stress on photosynthesis in two mulberry genotypes with different drought tolerance. Photosynthetica, 35(2): 279-283.
Reddy, A.R., Chaitanya, K.V., & Vivekanandan, M. 2004. Drought-induced responses of photosynthesis and antioxidant metabolism in higher plants. J. Plant Physiol., 161: 1189-1202.
Romero, P., Botía, P., & Garcia, F. 2004. Effects of regulated deficit irrigation under subsurface drip irrigation conditions on vegetative development and yield of mature almond trees. Plant Soil, 260: 169-181.
Rosicka-Kaczmarek, J. 2004. Polifenole jako naturalne antyoksydanty w żywności. Przegląd Piekarnictwa i Cukiernictwa, 6: 12-16. (in Polish).
Rouhi, V., Samson, R., Lemeur, R., & Van Damme, P. 2007. Photosynthetic gas exchange characteristics in three different almond species during drought stress and subsequent recovery. Environmental and Experimental Botany, 59(2): 117-129.
Schanderl, S.H. 1970. In: Methods in Food Analysis. Academic Press, New York London, pp. 709.
Thimmaiah, S.K. 2016. In: Standard Methods of Biochemical Analysis. Kalyani Publishers, New Delhi, pp. 59-60.
Vadell, J.H., & Medrano, H. 1992. Drought effect on genetic variability of photosynthetic rate and related characters. Photosynthetica, 27: 89-98.
Vu, J.C.V., Gesch, R.W., Allen, L.H., Boote, K.J., & Bowes, G. 1999. CO2 enrichment delays a rapid, drought-induced decrease in Rubisco small subunit transcript abundance. J. of Plant Physiol., 155: 139-142.
Weidner, S., Karamać, M., Amarowicz, R., Szypułka, E., & Gołgowska, A. 2007. Changes in composition of phenolic compounds and antioxidant properties of Vitis amurensis seeds germinated under osmotic stress. Acta Physiol. Plant., 29: 283-290.
Weidner, S., Karolak, M., Amarowicz, R., Kosinska, A., & Szypułka, E. 2009. Phenolic compounds and properties of antioxidants in grapevine roots under drought stress followed by recovery. Acta Societatis Botanicorum Poloniae, 78: 97-103.
Wong, S.C., Cowan, I.R., & Farquhar, G.D. 1985. Leaf conductance in relation to rate of CO2 assimilation. III. Influences of water stress and photoinhibition. Plant Physiol., 78: 830-834.
