2018
Cell wall integrity modulates Arabidopsis thaliana cell cycle gene expression in a cytokinin- and nitrate reductase-dependent manner
GIGLI-BISCEGLIA, N., T. ENGELSDORF, M. STRNAD, L. VAAHTERA, G.A. KHAN et. al.Základní údaje
Originální název
Cell wall integrity modulates Arabidopsis thaliana cell cycle gene expression in a cytokinin- and nitrate reductase-dependent manner
Autoři
GIGLI-BISCEGLIA, N. (578 Norsko), T. ENGELSDORF (578 Norsko), M. STRNAD (203 Česká republika), L. VAAHTERA (578 Norsko), G.A. KHAN (36 Austrálie), Amel YAMOUNE (12 Alžírsko, domácí), L. ALIPANAH (578 Norsko), A. NOVAK (203 Česká republika), S. PERSSON (36 Austrálie), Jan HEJÁTKO (203 Česká republika, garant, domácí) a T. HAMANN (578 Norsko)
Vydání
Development, CAMBRIDGE, COMPANY BIOLOGISTS LTD, 2018, 0950-1991
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10605 Developmental biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.763
Kód RIV
RIV/00216224:14740/18:00104771
Organizační jednotka
Středoevropský technologický institut
UT WoS
000447272300007
Klíčová slova anglicky
Cytokinin; Cell cycle; Cell wall integrity; Cell wall signaling; Cellulose biosynthesis; Nitrate reductase
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2019 13:03, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
During plant growth and defense, cell cycle activity needs to be coordinated with cell wall integrity. Little is known about how this coordination is achieved. Here, we investigated coordination in Arabidopsis thaliana seedlings by studying the impact of cell wall damage (CWD, caused by cellulose biosynthesis inhibition) on cytokinin homeostasis, cell cycle gene expression and cell shape in root tips. CWD inhibited cell cycle gene expression and increased transition zone cell width in an osmosensitive manner. These results were correlated with CWD-induced, osmosensitive changes in cytokinin homeostasis. Expression of CYTOKININ OXIDASE/DEHYDROGENASE 2 and 3 (CKX2, CKX3), which encode cytokinin-degrading enzymes, was induced by CWD and reduced by osmoticum treatment. In nitrate reductase1 nitrate reductase2 (nia1 nia2) seedlings, CKX2 and CKX3 transcript levels were not increased and cell cycle gene expression was not repressed by CWD. Moreover, established CWD-induced responses, such as jasmonic acid, salicylic acid and lignin production, were also absent, implying a central role of NIA1/2-mediated processes in regulation of CWD responses. These results suggest that CWD enhances cytokinin degradation rates through a NIA1/2-mediated process, leading to attenuation of cell cycle gene expression.
Návaznosti
EF16_019/0000738, projekt VaV |
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LM2015062, projekt VaV |
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LQ1601, projekt VaV |
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7F14155, projekt VaV |
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