Počet záznamů: 1
Heat Stress Targeting Individual Organs Reveals the Central Role of Roots and Crowns in Rice Stress Responses
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SYSNO ASEP 0556320 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Heat Stress Targeting Individual Organs Reveals the Central Role of Roots and Crowns in Rice Stress Responses Tvůrce(i) Přerostová, Sylva (UEB-Q) RID, ORCID, SAI
Jarošová, Jana (UEB-Q) ORCID
Dobrev, Petre (UEB-Q) RID, ORCID
Hlusková, Lucia (UEB-Q) ORCID
Motyka, Václav (UEB-Q) RID, ORCID
Filepová, Roberta (UEB-Q) SAI
Knirsch, Vojtěch (UEB-Q) ORCID
Gaudinová, Alena (UEB-Q) ORCID
Kieber, J.J. (US)
Vaňková, Radomíra (UEB-Q) RID, ORCIDCelkový počet autorů 10 Číslo článku 799249 Zdroj.dok. Frontiers in Plant Science. - : Frontiers Research Foundation - ISSN 1664-462X
Roč. 12, JAN 17 (2022)Poč.str. 17 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova acclimation ; antioxidant enzymes ; cytokinin oxidase/dehydrogenase (CKX) ; gene expression ; heat shock ; jasmonoyl-isoleucine ; Oryza sativa (L.) ; phytohormones Obor OECD Plant sciences, botany CEP LTAUSA17081 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_019/0000738 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA20-22875S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000749773800001 EID SCOPUS 85123773596 DOI 10.3389/fpls.2021.799249 Anotace Inter-organ communication and the heat stress (HS, 45°C, 6 h) responses of organs exposed and not directly exposed to HS were evaluated in rice (Oryza sativa) by comparing the impact of HS applied either to whole plants, or only to shoots or roots. Whole-plant HS reduced photosynthetic activity (Fv/Fm and QY_Lss), but this effect was alleviated by prior acclimation (37°C, 2 h). Dynamics of HSFA2d, HSP90.2, HSP90.3, and SIG5 expression revealed high protection of crowns and roots. Additionally, HSP26.2 was strongly expressed in leaves. Whole-plant HS increased levels of jasmonic acid (JA) and cytokinin cis-zeatin in leaves, while up-regulating auxin indole-3-acetic acid and down-regulating trans-zeatin in leaves and crowns. Ascorbate peroxidase activity and expression of alternative oxidases (AOX) increased in leaves and crowns. HS targeted to leaves elevated levels of JA in roots, cis-zeatin in crowns, and ascorbate peroxidase activity in crowns and roots. HS targeted to roots increased levels of abscisic acid and auxin in leaves and crowns, cis-zeatin in leaves, and JA in crowns, while reducing trans-zeatin levels. The weaker protection of leaves reflects the growth strategy of rice. HS treatment of individual organs induced changes in phytohormone levels and antioxidant enzyme activity in non-exposed organs, in order to enhance plant stress tolerance. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2023 Elektronická adresa http://doi.org/10.3389/fpls.2021.799249
Počet záznamů: 1