ARF降解决定了植物生长素反应中的一个深度保守步骤

bioRxiv - Plant Biology Pub Date : 2024-09-12 DOI:10.1101/2024.09.12.612472

Martijn de Roij, Jorge Hernandez Garcia, Shubhajit Das, Jan Willem Borst, Dolf Weijers

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摘要

叶绿素反应关键取决于相互竞争的 A 级和 B 级叶绿素反应因子（ARF）蛋白的浓度和配比。在Marchantia polymorpha中，A-和B-ARF都不稳定，在此我们确定了ARF降解的最小必要和充分区域，该区域对发育和叶黄素响应至关重要。通过比较分析，我们发现ARF的不稳定性很可能出现在辅助素反应系统出现之前。

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ARF degradation defines a deeply conserved step in auxin response

Auxin response critically depends on the concentrations and stoichiometry of competing A- and B-class AUXIN RESPONSE FACTOR (ARF) proteins. In Marchantia polymorpha, both A- and B-ARFs are unstable, and here we identify a minimal necessary and sufficient region for ARF degradation that is critical for development, and auxin response. Through comparative analysis, we find that ARF instability likely preceded the emergence of the auxin response system.

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bioRxiv - Plant Biology

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