期刊
PLANT CELL AND ENVIRONMENT
卷 46, 期 8, 页码 2558-2574出版社
WILEY
DOI: 10.1111/pce.14633
关键词
DMNT; herbivory; LRR-RLK; plant defense; plant elicitor peptide receptor
Sweet potato is an important crop that is often attacked by insect pests. Researchers have discovered that a storage protein called sporamin, which is abundant in the tubers, has trypsin protease inhibitory activity. This protein is induced by wounds or certain compounds, enhancing the plant's resistance to insects. The study also identified a gene called IbLRR-RK1, which is related to peptide-elicitor receptors found in tomato and Arabidopsis. Additionally, a peptide ligand called IbPep1 was found, which plays a role in strengthening insect resistance in sweet potato.
Sweet potato (Ipomoea batatas) is an important tuber crop, but also target of numerous insect pests. Intriguingly, the abundant storage protein in tubers, sporamin, has intrinsic trypsin protease inhibitory activity. In leaves, sporamin is induced by wounding or a volatile homoterpene and enhances insect resistance. While the signalling pathway leading to sporamin synthesis is partially established, the initial event, perception of a stress-related signal is still unknown. Here, we identified an IbLRR-RK1 that is induced upon wounding and herbivory, and related to peptide-elicitor receptors (PEPRs) from tomato and Arabidopsis. We also identified a gene encoding a precursor protein comprising a peptide ligand (IbPep1) for IbLRR-RK1. IbPep1 represents a distinct signal in sweet potato, which might work in a complementary and/or parallel pathway to the previously described hydroxyproline-rich systemin (HypSys) peptides to strengthen insect resistance. Notably, an interfamily compatibility in the Pep/PEPR system from Convolvulaceae and Solanaceae was identified.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据