Počet záznamů: 1
Jasmonate signalling contributes to primary root inhibition upon oxygen deficiency in arabidopsis thaliana
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SYSNO ASEP 0533144 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Jasmonate signalling contributes to primary root inhibition upon oxygen deficiency in arabidopsis thaliana Tvůrce(i) Shukla, V. (IT)
Lombardi, L. (IT)
Pěnčík, Aleš (UEB-Q) ORCID, RID, SAI
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Weits, D. A. (IT)
Loreti, S. (IT)
Perata, P. (IT)
Giuntoli, B. (IT)
Licausi, F. (IT)Celkový počet autorů 9 Číslo článku 1046 Zdroj.dok. Plants. - : MDPI - ISSN 2223-7747
Roč. 9, č. 8 (2020), s. 1-15Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Jasmonate ; Oxygen sensing ; Root hypoxia ; Root meristem Vědní obor RIV EF - Botanika Obor OECD Biochemistry and molecular biology CEP EF16_019/0000827 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000572569200001 EID SCOPUS 85089468107 DOI https://doi.org/10.3390/plants9081046 Anotace Plants, including most crops, are intolerant to waterlogging, a stressful condition that limits the oxygen available for roots, thereby inhibiting their growth and functionality. Whether root growth inhibition represents a preventive measure to save energy or is rather a consequence of reduced metabolic rates has yet to be elucidated. In the present study, we gathered evidence for hypoxic repression of root meristem regulators that leads to root growth inhibition. We also explored the contribution of the hormone jasmonic acid (JA) to this process in Arabidopsis thaliana. Analysis of transcriptomic profiles, visualisation of fluorescent reporters and direct hormone quantification confirmed the activation of JA signalling under hypoxia in the roots. Further, root growth assessment in JA-related mutants in aerobic and anaerobic conditions indicated that JA signalling components contribute to active root inhibition under hypoxia. Finally, we show that the oxygen-sensing transcription factor (TF) RAP2.12 can directly induce Jasmonate Zinc-finger proteins (JAZs), repressors of JA signalling, to establish feedback inhibition. In summary, our study sheds new light on active root growth restriction under hypoxic conditions and on the involvement of the JA hormone in this process and its cross talk with the oxygen sensing machinery of higher plants. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2021 Elektronická adresa http://doi.org/10.3390/plants9081046
Počet záznamů: 1