The physiological response of different tobacco varieties to chilling stress during the vigorous growing period

Abstract Tobacco is be sensitively affected by chilling injury in the vigorous growth period, which can easily lead to tobacco leaf browning during flue-curing and quality loss, however, the physiological response of tobacco in the prosperous period under low temperature stress is unclear. The physi...

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Autores principales:	Kaiyuan Gu, Shuang Hou, Jinfen Chen, Jinge Guo, Fenfen Wang, Chenggang He, Congming Zou, Xiaoyu Xie
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/340cc1e8cdaa473d92b316217b0ea59e
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spelling	oai:doaj.org-article:340cc1e8cdaa473d92b316217b0ea59e2021-11-14T12:21:34ZThe physiological response of different tobacco varieties to chilling stress during the vigorous growing period10.1038/s41598-021-01703-72045-2322https://doaj.org/article/340cc1e8cdaa473d92b316217b0ea59e2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01703-7https://doaj.org/toc/2045-2322Abstract Tobacco is be sensitively affected by chilling injury in the vigorous growth period, which can easily lead to tobacco leaf browning during flue-curing and quality loss, however, the physiological response of tobacco in the prosperous period under low temperature stress is unclear. The physiological response parameters of two tobacco varieties to low temperature stress were determined. The main results were as follows: ① For tobacco in the vigorous growing period subjected to low-temperature stress at 4–16 °C, the tissue structure of chloroplast changed and photosynthetic pigments significantly decreased compared with each control with the increase of intensity of low-temperature stress. ② For tobacco in the vigorous growing period at 10–16 °C, antioxidant capacity of the protective enzyme system, osmotic adjustment capacity of the osmotic adjusting system and polyphenol metabolism in plants gradually increased due to induction of low temperature with the increase of intensity of low-temperature stress. ③ Under low-temperature stress at 4 °C, the protective enzyme system, osmotic adjusting system and polyphenol metabolism of the plants played an insignificant role in stress tolerance, which cannot be constantly enhanced based on low-temperature resistance at 10 °C. This study confirmed that under the temperature stress of 10–16 °C, the self-regulation ability of tobacco will be enhanced with the deepening of low temperature stress, but there is a critical temperature between 4 and 10 °C. The self-regulation ability of plants under low temperature stress will be inhibited.Kaiyuan GuShuang HouJinfen ChenJinge GuoFenfen WangChenggang HeCongming ZouXiaoyu XieNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kaiyuan Gu Shuang Hou Jinfen Chen Jinge Guo Fenfen Wang Chenggang He Congming Zou Xiaoyu Xie The physiological response of different tobacco varieties to chilling stress during the vigorous growing period
description	Abstract Tobacco is be sensitively affected by chilling injury in the vigorous growth period, which can easily lead to tobacco leaf browning during flue-curing and quality loss, however, the physiological response of tobacco in the prosperous period under low temperature stress is unclear. The physiological response parameters of two tobacco varieties to low temperature stress were determined. The main results were as follows: ① For tobacco in the vigorous growing period subjected to low-temperature stress at 4–16 °C, the tissue structure of chloroplast changed and photosynthetic pigments significantly decreased compared with each control with the increase of intensity of low-temperature stress. ② For tobacco in the vigorous growing period at 10–16 °C, antioxidant capacity of the protective enzyme system, osmotic adjustment capacity of the osmotic adjusting system and polyphenol metabolism in plants gradually increased due to induction of low temperature with the increase of intensity of low-temperature stress. ③ Under low-temperature stress at 4 °C, the protective enzyme system, osmotic adjusting system and polyphenol metabolism of the plants played an insignificant role in stress tolerance, which cannot be constantly enhanced based on low-temperature resistance at 10 °C. This study confirmed that under the temperature stress of 10–16 °C, the self-regulation ability of tobacco will be enhanced with the deepening of low temperature stress, but there is a critical temperature between 4 and 10 °C. The self-regulation ability of plants under low temperature stress will be inhibited.
format	article
author	Kaiyuan Gu Shuang Hou Jinfen Chen Jinge Guo Fenfen Wang Chenggang He Congming Zou Xiaoyu Xie
author_facet	Kaiyuan Gu Shuang Hou Jinfen Chen Jinge Guo Fenfen Wang Chenggang He Congming Zou Xiaoyu Xie
author_sort	Kaiyuan Gu
title	The physiological response of different tobacco varieties to chilling stress during the vigorous growing period
title_short	The physiological response of different tobacco varieties to chilling stress during the vigorous growing period
title_full	The physiological response of different tobacco varieties to chilling stress during the vigorous growing period
title_fullStr	The physiological response of different tobacco varieties to chilling stress during the vigorous growing period
title_full_unstemmed	The physiological response of different tobacco varieties to chilling stress during the vigorous growing period
title_sort	physiological response of different tobacco varieties to chilling stress during the vigorous growing period
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/340cc1e8cdaa473d92b316217b0ea59e
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The physiological response of different tobacco varieties to chilling stress during the vigorous growing period

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