Drought resistance mechanisms of Phedimus aizoon L.

Abstract Phedimus aizoon L. is a drought-resistant Chinese herbal medicine and vegetable. However, its drought tolerant limit and the mechanism of drought tolerance are unknown, which restricts the promotion of water-saving cultivation of Phedimus aizoon L. in arid areas. To solve the above problem,...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yuhang Liu, Zhongqun He, Yongdong Xie, Lihong Su, Ruijie Zhang, Haixia Wang, Chunyan Li, Shengju Long
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f3c7b7269038443ea9a2f3fb7100ee87
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f3c7b7269038443ea9a2f3fb7100ee87
record_format	dspace
spelling	oai:doaj.org-article:f3c7b7269038443ea9a2f3fb7100ee872021-12-02T16:31:57ZDrought resistance mechanisms of Phedimus aizoon L.10.1038/s41598-021-93118-72045-2322https://doaj.org/article/f3c7b7269038443ea9a2f3fb7100ee872021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93118-7https://doaj.org/toc/2045-2322Abstract Phedimus aizoon L. is a drought-resistant Chinese herbal medicine and vegetable. However, its drought tolerant limit and the mechanism of drought tolerance are unknown, which restricts the promotion of water-saving cultivation of Phedimus aizoon L. in arid areas. To solve the above problem, we carried out a 30-day-long drought stress experiment in pots that presented different soil water contents and were divided into four groups: control check, 75–80% of the maximum water-holding capacity (MWHC); mild drought, 55–60%; moderate drought, 40–45%; and severe drought, 20–25%. The dynamic changes in both plant physiological indexes from 10 to 30 days and leaf anatomical structure on the 30th day of stress were recorded. The results show that Phedimus aizoon L. grew normally under mild drought stress for 30 days, but the growth of the plants became inhibited after 20 days of severe drought and after 30 days of moderate drought. At the same time, Phedimus aizoon L. physiologically responded to cope with drought stress: the growth of the root system accelerated, the waxy layer of the leaves thickened, and the dark reactions of the plants transformed from those of the C3 cycle to CAM. The activity of antioxidant enzymes (SOD, POD and CAT) continuously increased to alleviate the damage caused by drought stress. To ensure the relative stability of the osmotic potential, the contents of osmoregulatory substances such as proline, soluble sugars, soluble protein and trehalose increased correspondingly. Although Phedimus aizoon L. has strong drought stress resistance, our experimental results show that the soil available water content should not be less than 27% during cultivation.Yuhang LiuZhongqun HeYongdong XieLihong SuRuijie ZhangHaixia WangChunyan LiShengju LongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yuhang Liu Zhongqun He Yongdong Xie Lihong Su Ruijie Zhang Haixia Wang Chunyan Li Shengju Long Drought resistance mechanisms of Phedimus aizoon L.
description	Abstract Phedimus aizoon L. is a drought-resistant Chinese herbal medicine and vegetable. However, its drought tolerant limit and the mechanism of drought tolerance are unknown, which restricts the promotion of water-saving cultivation of Phedimus aizoon L. in arid areas. To solve the above problem, we carried out a 30-day-long drought stress experiment in pots that presented different soil water contents and were divided into four groups: control check, 75–80% of the maximum water-holding capacity (MWHC); mild drought, 55–60%; moderate drought, 40–45%; and severe drought, 20–25%. The dynamic changes in both plant physiological indexes from 10 to 30 days and leaf anatomical structure on the 30th day of stress were recorded. The results show that Phedimus aizoon L. grew normally under mild drought stress for 30 days, but the growth of the plants became inhibited after 20 days of severe drought and after 30 days of moderate drought. At the same time, Phedimus aizoon L. physiologically responded to cope with drought stress: the growth of the root system accelerated, the waxy layer of the leaves thickened, and the dark reactions of the plants transformed from those of the C3 cycle to CAM. The activity of antioxidant enzymes (SOD, POD and CAT) continuously increased to alleviate the damage caused by drought stress. To ensure the relative stability of the osmotic potential, the contents of osmoregulatory substances such as proline, soluble sugars, soluble protein and trehalose increased correspondingly. Although Phedimus aizoon L. has strong drought stress resistance, our experimental results show that the soil available water content should not be less than 27% during cultivation.
format	article
author	Yuhang Liu Zhongqun He Yongdong Xie Lihong Su Ruijie Zhang Haixia Wang Chunyan Li Shengju Long
author_facet	Yuhang Liu Zhongqun He Yongdong Xie Lihong Su Ruijie Zhang Haixia Wang Chunyan Li Shengju Long
author_sort	Yuhang Liu
title	Drought resistance mechanisms of Phedimus aizoon L.
title_short	Drought resistance mechanisms of Phedimus aizoon L.
title_full	Drought resistance mechanisms of Phedimus aizoon L.
title_fullStr	Drought resistance mechanisms of Phedimus aizoon L.
title_full_unstemmed	Drought resistance mechanisms of Phedimus aizoon L.
title_sort	drought resistance mechanisms of phedimus aizoon l.
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f3c7b7269038443ea9a2f3fb7100ee87
work_keys_str_mv	AT yuhangliu droughtresistancemechanismsofphedimusaizoonl AT zhongqunhe droughtresistancemechanismsofphedimusaizoonl AT yongdongxie droughtresistancemechanismsofphedimusaizoonl AT lihongsu droughtresistancemechanismsofphedimusaizoonl AT ruijiezhang droughtresistancemechanismsofphedimusaizoonl AT haixiawang droughtresistancemechanismsofphedimusaizoonl AT chunyanli droughtresistancemechanismsofphedimusaizoonl AT shengjulong droughtresistancemechanismsofphedimusaizoonl
_version_	1718383847082557440

Drought resistance mechanisms of Phedimus aizoon L.

Ejemplares similares