Počet záznamů: 1
Control of cambium initiation and activity in Arabidopsis by the transcriptional regulator AHL15
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SYSNO ASEP 0561529 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Control of cambium initiation and activity in Arabidopsis by the transcriptional regulator AHL15 Tvůrce(i) Rahimi, A. (IR)
Karami, O. (NL)
Lestari, A. D. (NL)
de Werk, T. (NL)
Amakorová, Petra (UEB-Q) ORCID
Shi, D. (CN)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Greb, T. (DE)
Offringa, R. (NL)Celkový počet autorů 9 Zdroj.dok. Current Biology. - : Cell Press - ISSN 0960-9822
Roč. 32, č. 8 (2022), s. 1764-1775Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova ahl15 ; Arabidopsis ; cytokinin ; ful ; secondary growth ; secondary xylem ; soc1 ; tdif-pxy-wox ; vascular cambium ; woody 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 000800107000008 EID SCOPUS 85129779066 DOI 10.1016/j.cub.2022.02.060 Anotace Plant secondary growth, which is the basis of wood formation, includes the production of secondary xylem, which is derived from meristematic cambium cells embedded in vascular tissue. Here, we identified an important role for the Arabidopsis thaliana (Arabidopsis) AT-HOOK MOTIF CONTAINING NUCLEAR LOCALIZED 15 (AHL15) transcriptional regulator in controlling vascular cambium activity. The limited secondary xylem development in inflorescence stems of herbaceous Arabidopsis plants was significantly reduced in ahl15 loss-of-function mutants, whereas constitutive or vascular meristem-specific AHL15 overexpression produced woody inflorescence stems. AHL15 was required for enhanced secondary xylem formation in the woody suppressor of overexpression of constans 1 (soc1) fruitfull (ful) double loss-of-function mutant. Moreover, we found that AHL15 induces vascular cambium activity downstream of the repressing SOC1 and FUL transcription factors, most likely similar to how it enhances lateral branching by promoting biosynthesis of the hormone cytokinin. Our results uncover a novel pathway driving cambium development, in which AHL15 expression levels act in parallel to and are dependent on the well-established TDIF-PXY-WOX pathway to differentiate between herbaceous and woody stem growth. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2023 Elektronická adresa https://doi.org/10.1016/j.cub.2022.02.060
Počet záznamů: 1