HMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera

Using plants as bioremediation agents are rising worldwide as an environmentally friendly tool to remove contaminants such as heavy metals. Arabidopsis halleri ssp. gemmifera is able to hyperaccumulate Cd/Zn, however, the commonality between Cd/Zn accumulation pathways are still vague. This study fo...

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Autores principales:	Christine Dwi A P Wiyono, Chihiro Inoue, Mei-Fang Chien
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Arabidopsis halleri ssp. gemmifera Cd and Zn hyperaccumulator Phytoremediation Metal transporter Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/4defd8f263d34f069db07de3c91f853c
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spelling	oai:doaj.org-article:4defd8f263d34f069db07de3c91f853c2021-12-04T04:36:40ZHMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera2667-064X10.1016/j.stress.2021.100042https://doaj.org/article/4defd8f263d34f069db07de3c91f853c2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2667064X21000415https://doaj.org/toc/2667-064XUsing plants as bioremediation agents are rising worldwide as an environmentally friendly tool to remove contaminants such as heavy metals. Arabidopsis halleri ssp. gemmifera is able to hyperaccumulate Cd/Zn, however, the commonality between Cd/Zn accumulation pathways are still vague. This study focused on HMA4 and IRT3 as indicators and investigated their transcription in A. halleri ssp. gemmifera under Cd/Zn treatments. In addition to the known Cd/Zn xylem loading functions in roots, HMA4 showed a potential role in Cd/Zn redistribution or metal efflux from the vascular bundle in leaves due to increased transcription by 3-fold after 7 d under all treatments. On the other hand, IRT3 as a Zn homeostasis gene was expressed continuously in both roots and leaves under single Cd or Zn treatment. However, IRT3 transcription in leaves plunged to 50-fold lower under combined Cd and Zn treatment. The result indicated an increase of intracellular free Zn ion, implying a new unreported mechanism of Zn homeostasis in leaves under the presence of both metals. Furthermore, no competition between Cd/Zn uptake and accumulation suggested the existence of independent transport system for Cd and Zn in A. halleri ssp. gemmifera, which is differed from what have been reported until now.Christine Dwi A P WiyonoChihiro InoueMei-Fang ChienElsevierarticleArabidopsis halleri ssp. gemmiferaCd and Zn hyperaccumulatorPhytoremediationMetal transporterPlant ecologyQK900-989ENPlant Stress, Vol 2, Iss , Pp 100042- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Arabidopsis halleri ssp. gemmifera Cd and Zn hyperaccumulator Phytoremediation Metal transporter Plant ecology QK900-989
spellingShingle	Arabidopsis halleri ssp. gemmifera Cd and Zn hyperaccumulator Phytoremediation Metal transporter Plant ecology QK900-989 Christine Dwi A P Wiyono Chihiro Inoue Mei-Fang Chien HMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera
description	Using plants as bioremediation agents are rising worldwide as an environmentally friendly tool to remove contaminants such as heavy metals. Arabidopsis halleri ssp. gemmifera is able to hyperaccumulate Cd/Zn, however, the commonality between Cd/Zn accumulation pathways are still vague. This study focused on HMA4 and IRT3 as indicators and investigated their transcription in A. halleri ssp. gemmifera under Cd/Zn treatments. In addition to the known Cd/Zn xylem loading functions in roots, HMA4 showed a potential role in Cd/Zn redistribution or metal efflux from the vascular bundle in leaves due to increased transcription by 3-fold after 7 d under all treatments. On the other hand, IRT3 as a Zn homeostasis gene was expressed continuously in both roots and leaves under single Cd or Zn treatment. However, IRT3 transcription in leaves plunged to 50-fold lower under combined Cd and Zn treatment. The result indicated an increase of intracellular free Zn ion, implying a new unreported mechanism of Zn homeostasis in leaves under the presence of both metals. Furthermore, no competition between Cd/Zn uptake and accumulation suggested the existence of independent transport system for Cd and Zn in A. halleri ssp. gemmifera, which is differed from what have been reported until now.
format	article
author	Christine Dwi A P Wiyono Chihiro Inoue Mei-Fang Chien
author_facet	Christine Dwi A P Wiyono Chihiro Inoue Mei-Fang Chien
author_sort	Christine Dwi A P Wiyono
title	HMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera
title_short	HMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera
title_full	HMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera
title_fullStr	HMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera
title_full_unstemmed	HMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera
title_sort	hma4 and irt3 as indicators accounting for different responses to cd and zn by hyperaccumulator arabidopsis halleri ssp. gemmifera
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/4defd8f263d34f069db07de3c91f853c
work_keys_str_mv	AT christinedwiapwiyono hma4andirt3asindicatorsaccountingfordifferentresponsestocdandznbyhyperaccumulatorarabidopsishallerisspgemmifera AT chihiroinoue hma4andirt3asindicatorsaccountingfordifferentresponsestocdandznbyhyperaccumulatorarabidopsishallerisspgemmifera AT meifangchien hma4andirt3asindicatorsaccountingfordifferentresponsestocdandznbyhyperaccumulatorarabidopsishallerisspgemmifera
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HMA4 and IRT3 as indicators accounting for different responses to Cd and Zn by hyperaccumulator Arabidopsis halleri ssp. gemmifera

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