Impact of soil drought stress on photochemical efficiency of photosystem II and antioxidant enzyme activities of Phaseolus vulgaris cultivars
By R. Terzi, A. Sağlam, Nihal Kutlu, Hatice Nar, A. Kadıoğlu. Turkish Journal of Botany, 2010
87 citations recorded by the source corpus.
Common bean (Phaseolus vulgaris L.) cultivars (cvs) (Goynuk 98, Karacasehir 90, Şehirali 90, ES 855, and Yunus 90) were subjected to drought stress in order to assess the levels of drought tolerance through the analysis of growth parameters, leaf water potential (yleaf), stomatal conductance (gs), chlorophyll (chl) content, and lipid peroxidation. Significant differences were recorded among cultivars in most traits. Yunus 90 was identified as the most tolerant, and Karacasehir 90 was the most sensitive. Furthermore, the changes in antioxidant enzyme activities, H2O2 content, and Photosystem II were investigated under drought stress, where Antioxidant enzyme activities increased while H2O2 contents decreased. In Yunus 90, increases in catalase (CAT) and ascorbate peroxidase (APX) activities were higher than those of the other cvs. Increase in GPX activity was higher in Karacasehir 90 compared to Yunus 90. Drought stress reduced quantum yield of PS II photochemistry (fPSII) and photochemical quenching (qP) in all cultivars. The reduction was more pronounced in Karacasehir 90. These results showed that different common bean cvs had different photochemical efficiencies and used different antioxidant enzymes in order to scavenge reactive oxygen species.
Subfields: Plant Science
View Paper: https://www.semanticscholar.org/paper/b678c763f1d81623c2bac408f45e518d9d64871d
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Citations in the corpus
- Changes in anatomical and physiological parameters of soybean under drought stress (2011, background): “It was also reported in other species and this pigment was sensitive to increasing environmental stress (Ladjal et al., 2000; Younis et al., 2000; Terzi et al., 2010).”
- The effect of drought stress on yield, leaf gaseous exchange and chlorophyll fluorescence of dry beans (Phaseolus vulgaris L.) (2017, result): “The results that Fv/Fm for S2 and S5 was not affected by drought is in agreement with previous report observed in cattail and dry beans (Li et al., 2004; Terzi et al., 2010).”