Počet záznamů: 1
Phospholipase D alpha 1 Acts as a Negative Regulator of High Mg2+-Induced Leaf Senescence in Arabidopsis
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SYSNO ASEP 0552850 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Phospholipase D alpha 1 Acts as a Negative Regulator of High Mg2+-Induced Leaf Senescence in Arabidopsis Tvůrce(i) Kocourková, Daniela (UEB-Q) ORCID
Kroumanová, Kristýna (UEB-Q) ORCID
Podmanická, Tereza (UEB-Q)
Daněk, Michal (UEB-Q) ORCID
Martinec, Jan (UEB-Q) RID, ORCIDCelkový počet autorů 5 Číslo článku 770794 Zdroj.dok. Frontiers in Plant Science. - : Frontiers Research Foundation - ISSN 1664-462X
Roč. 12, NOV 25 (2021)Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova salt-stress-response ; jasmonic acid ; potassium-deficiency ; abscisic-acid ; magnesium homeostasis ; proline accumulation ; stomatal closure ; plants ; identification ; suppression ; Arabidopsis thaliana ; magnesium homeostasis ; phospholipase D ; leaf senescence ; starch ; proline ; abscisic acid ; jasmonic acid Obor OECD Biochemical research methods CEP GA17-00522S GA ČR - Grantová agentura ČR EF16_019/0000738 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000728909100001 EID SCOPUS 85120847771 DOI 10.3389/fpls.2021.770794 Anotace Magnesium (Mg2+) is a macronutrient involved in essential cellular processes. Its deficiency or excess is a stress factor for plants, seriously affecting their growth and development and therefore, its accurate regulation is essential. Recently, we discovered that phospholipase D alpha 1 (PLD alpha 1) activity is vital in the stress response to high-magnesium conditions in Arabidopsis roots. This study shows that PLD alpha 1 acts as a negative regulator of high-Mg2+-induced leaf senescence in Arabidopsis. The level of phosphatidic acid produced by PLD alpha 1 and the amount of PLD alpha 1 in the leaves increase in plants treated with high Mg2+. A knockout mutant of PLD alpha 1 (pld alpha 1-1), exhibits premature leaf senescence under high-Mg2+ conditions. In pld alpha 1-1 plants, higher accumulation of abscisic and jasmonic acid (JA) and impaired magnesium, potassium and phosphate homeostasis were observed under high-Mg2+ conditions. High Mg2+ also led to an increase of starch and proline content in Arabidopsis plants. While the starch content was higher in pld alpha 1-1 plants, proline content was significantly lower in pld alpha 1-1 compared with wild type plants. Our results show that PLD alpha 1 is essential for Arabidopsis plants to cope with the pleiotropic effects of high-Mg2+ stress and delay the leaf senescence. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2022 Elektronická adresa http://doi.org/10.3389/fpls.2021.770794
Počet záznamů: 1