Abscisic acid-mediated modifications in water transport
continuum are involved in cadmium hyperaccumulation in Sedum
alfredii

J 2021

Abscisic acid-mediated modifications in water transport continuum are involved in cadmium hyperaccumulation in Sedum alfredii

TAO, Qi; Radek JUPA; Qin DONG; Xin YANG; Yuankun LIU et al.

Základní údaje

Originální název

Abscisic acid-mediated modifications in water transport continuum are involved in cadmium hyperaccumulation in Sedum alfredii

Autoři

TAO, Qi; Radek JUPA; Qin DONG; Xin YANG; Yuankun LIU; Bing LI; Shu YUAN; Junjie YIN; Qiang XU; Tingqiang LI a Changquan WANG

Vydání

Chemosphere, Elsevier Science, 2021, 0045-6535

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10611 Plant sciences, botany

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 8.943

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/21:00121250

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Abscisic acids; Cadmium; Hyperaccumulator; Transpiration; Water transport continuum

Štítky

14314010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 22. 4. 2021 15:16, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Abscisic acid (ABA) play a crucial role in plant acclimation to heavy-metals stresses. Nevertheless, the effects of ABA on long-distance transport and its consequences for cadmium (Cd) accumulation are insufficiently understood. Here, we investigated the effects of ABA on the development of the whole-plant water transport pathway and implications for Cd uptake and transport to the shoot of Sedum alfredii. Exposure to Cd stimulated the production of endogenous ABA levels in the non-hyperaccumulating ecotype (NHE), but not in the hyperaccumulating ecotype (HE). Increased ABA levels in NHE significantly reduced aquaporin expressions in roots, the number of xylem vessel in stem, dimensions and densities of stomata in leaves, but induced leaf osmotic adjustment. Furthermore, the ABA-driven modifications in NHE plants showed typically higher sensitivity to ABA content in leaves compared to HE, illustrating ecotype-specific responses to ABA level. In NHE, the ABA-mediated modifications primarily affected the xylem transport of Cd ions and, at the cost of considerable water delivery limitations, significantly reduced delivery of Cd ions to shoots. In contrast, maintenance of low ABA levels in HE failed to t limit transpiration rates and maximized Cd accumulation in shoots. Our results demonstrated that ABA regulates Cd hyperaccumulation of S. alfredii through specific modifications in the water transport continuum.

Citovat

TAO, Qi; Radek JUPA; Qin DONG; Xin YANG; Yuankun LIU; Bing LI; Shu YUAN; Junjie YIN; Qiang XU; Tingqiang LI a Changquan WANG. Abscisic acid-mediated modifications in water transport continuum are involved in cadmium hyperaccumulation in Sedum alfredii. Chemosphere. Elsevier Science, 2021, roč. 268, April, s. 1-11. ISSN 0045-6535. Dostupné z: https://doi.org/10.1016/j.chemosphere.2020.129339.

@article{1753079,
   author = {Tao, Qi and Jupa, Radek and Dong, Qin and Yang, Xin and Liu, Yuankun and Li, Bing and Yuan, Shu and Yin, Junjie and Xu, Qiang and Li, Tingqiang and Wang, Changquan},
   article_number = {April},
   doi = {https://doi.org/10.1016/j.chemosphere.2020.129339},
   keywords = {Abscisic acids; Cadmium; Hyperaccumulator; Transpiration; Water transport continuum},
   language = {eng},
   issn = {0045-6535},
   journal = {Chemosphere},
   title = {Abscisic acid-mediated modifications in water transport continuum are involved in cadmium hyperaccumulation in Sedum alfredii},
   url = {https://www.sciencedirect.com/science/article/abs/pii/S0045653520335360},
   volume = {268},
   year = {2021}
}

TY  - JOUR
ID  - 1753079
AU  - Tao, Qi - Jupa, Radek - Dong, Qin - Yang, Xin - Liu, Yuankun - Li, Bing - Yuan, Shu - Yin, Junjie - Xu, Qiang - Li, Tingqiang - Wang, Changquan
PY  - 2021
TI  - Abscisic acid-mediated modifications in water transport continuum are involved in cadmium hyperaccumulation in Sedum alfredii
JF  - Chemosphere
VL  - 268
IS  - April
SP  - 1-11
EP  - 1-11
PB  - Elsevier Science
SN  - 00456535
KW  - Abscisic acids
KW  - Cadmium
KW  - Hyperaccumulator
KW  - Transpiration
KW  - Water transport continuum
UR  - https://www.sciencedirect.com/science/article/abs/pii/S0045653520335360
N2  - Abscisic acid (ABA) play a crucial role in plant acclimation to heavy-metals stresses. Nevertheless, the effects of ABA on long-distance transport and its consequences for cadmium (Cd) accumulation are insufficiently understood. Here, we investigated the effects of ABA on the development of the whole-plant water transport pathway and implications for Cd uptake and transport to the shoot of Sedum alfredii. Exposure to Cd stimulated the production of endogenous ABA levels in the non-hyperaccumulating ecotype (NHE), but not in the hyperaccumulating ecotype (HE). Increased ABA levels in NHE significantly reduced aquaporin expressions in roots, the number of xylem vessel in stem, dimensions and densities of stomata in leaves, but induced leaf osmotic adjustment. Furthermore, the ABA-driven modifications in NHE plants showed typically higher sensitivity to ABA content in leaves compared to HE, illustrating ecotype-specific responses to ABA level. In NHE, the ABA-mediated modifications primarily affected the xylem transport of Cd ions and, at the cost of considerable water delivery limitations, significantly reduced delivery of Cd ions to shoots. In contrast, maintenance of low ABA levels in HE failed to t limit transpiration rates and maximized Cd accumulation in shoots. Our results demonstrated that ABA regulates Cd hyperaccumulation of S. alfredii through specific modifications in the water transport continuum.
ER  -

TAO, Qi; Radek JUPA; Qin DONG; Xin YANG; Yuankun LIU; Bing LI; Shu YUAN; Junjie YIN; Qiang XU; Tingqiang LI a Changquan WANG. Abscisic acid-mediated modifications in water transport continuum are involved in cadmium hyperaccumulation in Sedum alfredii. \textit{Chemosphere}. Elsevier Science, 2021, roč.~268, April, s.~1-11. ISSN~0045-6535. Dostupné z: https://doi.org/10.1016/j.chemosphere.2020.129339.

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