Agrotechnology

Effects of high temperature stress on active oxygen metabolism, anthocyanin contents and its synthase of eggplant peel

13^th International Conference on Agriculture & Horticulture

September 10-12, 2018 | Zurich, Switzerland

Cha Dingshi, Wu Xuexia, Zhang Yongping and Chen Youyuan

Shanghai Academy of Agricultural Sciences, China

Posters & Accepted Abstracts: Agrotechnology

Abstract:

This paper studies the effects of high temperature stress (HT) on the active oxygen metabolism, anthocyanin contents and its synthase of the eggplant seedlings. The results showed that HT could increase the Malonaldehyde (MDA) contents, superoxide radical production rate (O2???¯) and Hydrogen Peroxide (H2O2) contents, the activities of Superoxide radical (SOD), Peroxidase (POD), Catalase (CAT) and Ascorbate Peroxidase (APX), contents of proline and soluble protein. And HT could decrease the anthocyanin contents, CHS, DFR, ANS and 3GT activities, while increase the PAL activity. The above results illustrated that HT could increase the reactive oxygen species, raise the antioxidative enzyme activities and osmotic adjustment substance, and decrease anthocyanin contents and its synthase to alleviate the damage of high temperature stress to the eggplant peels. Recent Publications: 1. Bartwal A et al. (2012) Role of secondary metabolites and brassinosteroids in plant defense against environmental stresses. J Plant Growth Regul. 32(1):216-232. 2. Janeczko A et al. (2011) Physiological effects and transport of 24-epibrassinolide in heat-stressed barley. Acta Physiol. Plant. 33(4):1249-1259. 3. Fang H H et al. (2014) Hydrogen sulfide interacts with calcium signaling to enhance the chromium tolerance in Setaria italic. Cell Calcium. 56(6):472-481. 4. Sun N et al. (2014) Hydrogen-rich water reestablishes ROS homeostasis but exerts differential effects on anthocyanin synthesis in two varieties of radish sprouts under UV-A irradiation. Journal of Agricultural and Food Chemistry. 62(27):6454-6462. 5. Huh E J et al. (2008) Thermo susceptible developmental stage in anthocyanin accumulation and color response to high temperature in red chrysanthemum cultivars. Korean Journal of Horticultural Science & Technology. 26:357-361.

Biography :

Cha Dingshi has working at Shanghai Academy of Agricultural Sciences since 1984. Now he has his expertise in eggplant cultivation and breeding. He has chosen 5 eggplant varieties that have large area.

E-mail: dingshizha@aliyun.com