The cotton endocycle‐involved protein SPO11‐3 functions in salt stress via integrating leaf stomatal response, ROS scavenging and root growth

• DOI: 10.1111/ppl.12875
• Publication Date: 2018-11-14T04:16:03Z
• Authors: Zhenzhen Wei; Xinjie Shi; Fang Wei; Zhuxuan Fan; Liqing Mei; Baoming Tian; Yinghui Shi; Gangqiang Cao; Gongyao Shi
• Keywords: Endoreduplication

The SPORULATION 11 (SPO11) proteins are among eukaryotic the topoisomerase VIA (Topo VIA) homologs involved in modulating various important biological processes, such as growth, development and stress response via endoreduplication plants, but underlying mechanism to remains largely unknown under salt treatment. Here, we attempted characterize a homolog of TOP upland cotton ( Gossypium hirsutum L.), designated GhSPO11‐3 . silencing plants resulted dwarf phenotype with failure cell phase shift ploidy levels. ‐silenced also showed substantial changes including accumulated malondialdehyde, significantly reduced chlorophyll proline contents decreased antioxidative enzyme activity after In addition, transgenic Arabidopsis lines overexpressing accelerated both leaf root growth expansion endopolyploidy. Both stomatal density aperture were markedly decreased, more tolerant expression stress‐responsive genes salinity stress. Furthermore, consistent reactive oxygen species (ROS), ROS scavenging‐related was reinforced, antioxidant activities accordingly enhanced general, these results indicated that likely respond by positively regulating response, production stress‐related cope adverse conditions plants.