Regulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)

Abstract Abscisic acid (ABA) is known as an important hormone regulating plant stress resistance, such as salt, drought and heavy metal resistance. However, the relationship between ABA and cadmium (Cd) enrichment in ramie (Boehmeria nivea L.) is still unclear to date. This study aimed to reveal the...

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Autores principales:	Kunmei Chen, Ping Chen, Xiaojun Qiu, Jikang Chen, Gang Gao, Xiaofei Wang, Aiguo Zhu, Chunming Yu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/06b9f0b5cb914d37a7bf5e291f7657f8
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spelling	oai:doaj.org-article:06b9f0b5cb914d37a7bf5e291f7657f82021-11-14T12:19:02ZRegulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)10.1038/s41598-021-00322-62045-2322https://doaj.org/article/06b9f0b5cb914d37a7bf5e291f7657f82021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-00322-6https://doaj.org/toc/2045-2322Abstract Abscisic acid (ABA) is known as an important hormone regulating plant stress resistance, such as salt, drought and heavy metal resistance. However, the relationship between ABA and cadmium (Cd) enrichment in ramie (Boehmeria nivea L.) is still unclear to date. This study aimed to reveal the effect of ABA on Cd enrichment in ramie, and we received the following results: (1) Under Cd treatment, the Cd uptake of ramie increased with the increase of Cd concentration, but the chlorophyll content decreased. Under Cd treatment, the ABA content was highest in roots of ramie, followed by that in old leaves, and lowest in new leaves. Long-time treatment of high Cd concentration reduced the ability of endogenous ABA biosynthesis. (2) Spraying ABA on ramie plants (SORP) and adding ABA directly to the culture solution (ADCS) with low concentration can promote the growth of ramie and increase the amount of Cd uptake, and the effect of SORP is better. (3) The molecular reason for the decrease of chlorophyll content due to Cd stress, may be resulted from the down-regulated expression of the chlorophyll synthesis genes (BnPAO and BnNYC1) and the up-regulated expression of the chlorophyll degradation genes (BnCHLH, BnCHLG, BnHAP3A and BnPPR1). The elevated ABA content in ramie plants may due to the up-regulated expression of the ABA synthesis related genes (BnABA1, BnNCED3, and BnNCED5) and the genes (BnABCG40, BnNFXL2, BnPYL9, BnGCR2, BnGTG1, BnBGLU1, BnUTG1, BnVHAG1 and BnABI5) that encoding ABA transport and response proteins, which was consistent with the enhance the Cd uptake in ramie. Our study revealed the relationship between ABA and Cd uptake in ramie, which provided a reference for improving the enrichment of Cd in ramie.Kunmei ChenPing ChenXiaojun QiuJikang ChenGang GaoXiaofei WangAiguo ZhuChunming YuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kunmei Chen Ping Chen Xiaojun Qiu Jikang Chen Gang Gao Xiaofei Wang Aiguo Zhu Chunming Yu Regulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)
description	Abstract Abscisic acid (ABA) is known as an important hormone regulating plant stress resistance, such as salt, drought and heavy metal resistance. However, the relationship between ABA and cadmium (Cd) enrichment in ramie (Boehmeria nivea L.) is still unclear to date. This study aimed to reveal the effect of ABA on Cd enrichment in ramie, and we received the following results: (1) Under Cd treatment, the Cd uptake of ramie increased with the increase of Cd concentration, but the chlorophyll content decreased. Under Cd treatment, the ABA content was highest in roots of ramie, followed by that in old leaves, and lowest in new leaves. Long-time treatment of high Cd concentration reduced the ability of endogenous ABA biosynthesis. (2) Spraying ABA on ramie plants (SORP) and adding ABA directly to the culture solution (ADCS) with low concentration can promote the growth of ramie and increase the amount of Cd uptake, and the effect of SORP is better. (3) The molecular reason for the decrease of chlorophyll content due to Cd stress, may be resulted from the down-regulated expression of the chlorophyll synthesis genes (BnPAO and BnNYC1) and the up-regulated expression of the chlorophyll degradation genes (BnCHLH, BnCHLG, BnHAP3A and BnPPR1). The elevated ABA content in ramie plants may due to the up-regulated expression of the ABA synthesis related genes (BnABA1, BnNCED3, and BnNCED5) and the genes (BnABCG40, BnNFXL2, BnPYL9, BnGCR2, BnGTG1, BnBGLU1, BnUTG1, BnVHAG1 and BnABI5) that encoding ABA transport and response proteins, which was consistent with the enhance the Cd uptake in ramie. Our study revealed the relationship between ABA and Cd uptake in ramie, which provided a reference for improving the enrichment of Cd in ramie.
format	article
author	Kunmei Chen Ping Chen Xiaojun Qiu Jikang Chen Gang Gao Xiaofei Wang Aiguo Zhu Chunming Yu
author_facet	Kunmei Chen Ping Chen Xiaojun Qiu Jikang Chen Gang Gao Xiaofei Wang Aiguo Zhu Chunming Yu
author_sort	Kunmei Chen
title	Regulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)
title_short	Regulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)
title_full	Regulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)
title_fullStr	Regulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)
title_full_unstemmed	Regulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)
title_sort	regulating role of abscisic acid on cadmium enrichment in ramie (boehmeria nivea l.)
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/06b9f0b5cb914d37a7bf5e291f7657f8
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Regulating role of abscisic acid on cadmium enrichment in ramie (Boehmeria nivea L.)

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