Morpho-physiological and biochemical responses of muskmelon genotypes to different degree of water deficit
Photosynthetica(2018)
摘要
Morpho-physiological and biochemical analyses were carried out in eight diverse indigenous muskmelon ( Cucumis melo L.) genotypes exposed to different degrees of water deficit (WD). The ability of genotypes MM-7, and especially MM-6, to counteract better the negative effect of WD was associated with maintaining higher relative water content (RWC), photosynthetic rate, efficiency of PSII, and photosynthetic pigments compare to other genotypes. Furthermore, MM-6 showed a better ability to maintain cellular homeostasis than the others. It was indicated by a stimulated antioxidative defense system, i.e. , higher activities of antioxidant enzymes, accumulation of nonenzymatic antioxidants together with lower concentration of reactive oxygen species and malondialdehyde. However, the genotypes MM-2 and MM-5 suffered greatly due to WD and showed reduced RWC, photosynthetic rates, pigment content, and exhibited higher oxidative stress observed as lower antioxidant enzyme activities.
更多查看译文
关键词
antioxidant enzyme, muskmelon, photosynthesis, proline, reactive oxygen species
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络