Exogenous calcium improves viability of biocontrol yeasts under heat stress by reducing ROS accumulation and oxidative damage of cellular protein.

Current Microbiology
Bang AnShiping Tian

Abstract

In this article, we investigated the effect of exogenous calcium on improving viability of Debaryomyces hansenii and Pichia membranaefaciens under heat stress, and evaluated the role of calcium in reducing oxidant damage of proteins in the yeast cells. The results indicated that high concentration of exogenous calcium in culture medium was beneficial for enhancing the tolerance of the biocontrol yeasts to heat stress. The possible mechanism of calcium improving the viability of yeasts was attributed to enhancement of antioxidant enzyme activities, decrease in ROS accumulation and reduction of oxidative damage of intracellular protein in yeast cells under heat stress. D. hansenii is more sensitive to calcium as compared to P. membranaefaciens. Our results suggest that application of exogenous calcium combined with biocontrol yeasts is a practical approach for the control of postharvest disease in fruit.

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Citations

Oct 9, 2013·World Journal of Microbiology & Biotechnology·Wei ZhaoYongsheng Liu
Dec 3, 2014·International Journal of Food Microbiology·Jian ChenShiping Tian
Oct 19, 2013·International Journal of Food Microbiology·Jia LiuYongsheng Liu
Feb 25, 2015·Applied and Environmental Microbiology·Yuan SuiJia Liu
Nov 24, 2016·Applied Biochemistry and Biotechnology·Hongwei ZhaoHaibo Zhang
Jul 1, 2019·Applied Microbiology and Biotechnology·Xueliang QiuGuocheng Du
Jun 11, 2019·Frontiers in Plant Science·Jianghua CaiShiping Tian
Jun 12, 2014·Journal of Applied Microbiology·C Calvo-GarridoN Teixidó
Dec 19, 2020·Comprehensive Reviews in Food Science and Food Safety·Boqiang LiShiping Tian

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