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Foliar-applied glutathione activates zinc transport from roots to shoots in oilseed rape.
Plant Sci. 2019 Jun; 283:424-434.PS

Abstract

Glutathione is a tripeptide involved in diverse aspects of plant metabolism. We investigated how the reduced form of glutathione, GSH, applied site-specifically to plants, affects zinc (Zn) distribution and behavior in oilseed rape plants (Brassica napus) cultured hydroponically. Foliar-applied GSH significantly increased the Zn content in shoots and the root-to-shoot Zn translocation ratio; furthermore, this treatment raised the Zn concentration in the cytosol of root cells and substantially enhanced Zn xylem loading. Notably, microarray analysis revealed that the gene encoding pectin methylesterase was upregulated in roots following foliar GSH treatment. We conclude that certain physiological signals triggered in response to foliar-applied GSH were transported via sieve tubes and functioned in root cells, which, in turn, increased Zn availability in roots by releasing Zn from their cell wall. Consequently, root-to-shoot translocation of Zn was activated and Zn accumulation in the shoot was markedly increased.

Authors+Show Affiliations

Department of Bioscience, Faculty of Life Sciences, Tokyo University of Agriculture, 1-1-1 Sakuragaoka Setagaya-ku, Tokyo, 156-8502, Japan; Department of Biological Production, Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshinjo-Nakano, Akita-shi, Akita, 010-0195, Japan. Electronic address: sn206169@nodai.ac.jp.United Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.Institute for Food Sciences, Hirosaki University, 2-1-1 Yanagawa, Aomori-shi, Aomori, 038-0012, Japan.Department of Biological Production, Faculty of Bioresource Sciences, Akita Prefectural University, 241-438 Kaidobata-Nishi, Shimoshinjo-Nakano, Akita-shi, Akita, 010-0195, Japan.Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo, 183-8509, Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31128714

Citation

Nakamura, Shin-Ichi, et al. "Foliar-applied Glutathione Activates Zinc Transport From Roots to Shoots in Oilseed Rape." Plant Science : an International Journal of Experimental Plant Biology, vol. 283, 2019, pp. 424-434.
Nakamura SI, Wongkaew A, Nakai Y, et al. Foliar-applied glutathione activates zinc transport from roots to shoots in oilseed rape. Plant Sci. 2019;283:424-434.
Nakamura, S. I., Wongkaew, A., Nakai, Y., Rai, H., & Ohkama-Ohtsu, N. (2019). Foliar-applied glutathione activates zinc transport from roots to shoots in oilseed rape. Plant Science : an International Journal of Experimental Plant Biology, 283, 424-434. https://doi.org/10.1016/j.plantsci.2018.10.018
Nakamura SI, et al. Foliar-applied Glutathione Activates Zinc Transport From Roots to Shoots in Oilseed Rape. Plant Sci. 2019;283:424-434. PubMed PMID: 31128714.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Foliar-applied glutathione activates zinc transport from roots to shoots in oilseed rape. AU - Nakamura,Shin-Ichi, AU - Wongkaew,Arunee, AU - Nakai,Yuji, AU - Rai,Hiroki, AU - Ohkama-Ohtsu,Naoko, Y1 - 2018/11/13/ PY - 2018/06/23/received PY - 2018/08/24/revised PY - 2018/10/21/accepted PY - 2019/5/27/entrez PY - 2019/5/28/pubmed PY - 2019/7/23/medline KW - Glutathione, reduced form (GSH) KW - Oilseed rape (Brassica napus) KW - Phloem KW - Transport KW - Xylem KW - Zinc (Zn) SP - 424 EP - 434 JF - Plant science : an international journal of experimental plant biology JO - Plant Sci VL - 283 N2 - Glutathione is a tripeptide involved in diverse aspects of plant metabolism. We investigated how the reduced form of glutathione, GSH, applied site-specifically to plants, affects zinc (Zn) distribution and behavior in oilseed rape plants (Brassica napus) cultured hydroponically. Foliar-applied GSH significantly increased the Zn content in shoots and the root-to-shoot Zn translocation ratio; furthermore, this treatment raised the Zn concentration in the cytosol of root cells and substantially enhanced Zn xylem loading. Notably, microarray analysis revealed that the gene encoding pectin methylesterase was upregulated in roots following foliar GSH treatment. We conclude that certain physiological signals triggered in response to foliar-applied GSH were transported via sieve tubes and functioned in root cells, which, in turn, increased Zn availability in roots by releasing Zn from their cell wall. Consequently, root-to-shoot translocation of Zn was activated and Zn accumulation in the shoot was markedly increased. SN - 1873-2259 UR - https://www.unboundmedicine.com/medline/citation/31128714/Foliar_applied_glutathione_activates_zinc_transport_from_roots_to_shoots_in_oilseed_rape_ DB - PRIME DP - Unbound Medicine ER -