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| 1 | Characterization and Proteomic Analysis of Novel Rice Lesion Mimic Mutant with Enhanced Disease Resistance显示文摘Lesion mmic mutants(LMMs)are plants that spontaneously form lesions without pathogeninfection or external stimulus and exhibit resistance to pathogens.Here,a rice LMM was created by ethylmethane sulfonate mutagenesis,named as hpil(hydrogen peroxide induced lesion).Diaminobenzidineand trypan blue staining showed that large amounts of H_(2)O_(2) were produced and cell death was occurredat and around the parts of lesion mimic in the rice leaves.The phenotype of hpil is controlled by a singlerecessive gene,localized at a 2 Mb interval on chromosome 2.The data suggested that hpil is a novelLMM with enhanced bacterial and fungal disease resistance,and multiple pathogenesis-related proteins(PRs)were up-regulated.The proteomes of leaves at three positions(different degrees of lesion mimicseverity)were characterized in hpil compared with its wild type plant.Differentially expressed proteinswere detected by two dimensional difference gel electrophoresis and 274 proteins were identified byMALDITOF/TOFTM.These proteins were related to metabolic process,cellular process and response tostimulus,with mostly down-regulated in hpil leaves.Many of these proteins were related to the Calvincycle,photosynthetic electron transport chain,glycolysis/gluconeogenesis and phosphonates pathways.Some resistance-related proteins including 14-3-3 proteins,OsPR10 and antioxidases such asperoxidase,superoxide dismutase and ascorbate peroxidase were up-regulated in leaves with lesionmimic.These results provide the foundation for cloning of the target gene and shed light on themechanism involved in autaimmunity of rice. | Yang Yong Lin Qiujun Chen Xinyu Liang Weifang Fu Yuwen Xu Zhengjin Wu Yuanhua Wang Xuming Zhou Jie Yu Chulang Yan Chengqi Mei Qiong Chen Jianping | 2021 | Rice science2021，28，5： | 2 |
| 2 | Development of Rice Leaves:How Histocytes Modulate Leaf Polarity Establishment显示文摘An ideal leaf shape is beneficial to the yield of rice.Molecular understanding of the leaf primordia and polarity establishment plays a significant role in exploring the genetic regulatory network of leaf morphogenesis.In recent years,researchers have cloned an array of coding genes and a few non-coding small RNAs involved in rice leaf development through regulating the development of leaf primordia,vascular bundles,sclerenchyma cells,bulliform cells,cell walls and epidermis cells.These genes and their interactions play critical roles in rice leaf development through the determination and regulatory role in gene expression,and their coordination with other genetic networks or signal pathways.But the relationship among these genes is poorly defined and the underlying network is still unclear.In this review,we introduced the regulatory pathways of leaf primordium development and leaf polarity establishment,mainly the relationship between cell development mechanism and leaf polarity establishment,focusing on how leaf tissue affects leaf shape.Hopefully,the regulation network reviewed here has immediate implications for future research and genomic design breeding. | Wang Jiajia Xu Jing Qian Qian Zhang Guangheng | 2020 | Rice science2020，27，6： | 2 |
| 3 | 水稻类病斑突变体基因克隆及发生机制研究进展显示文摘类病斑突变体(Lmms)是研究植物细胞死亡和防御反应机制的重要材料。本文对水稻类病斑突变体的最新研究进展进行了综述。在此基础上,对进一步加强类病斑突变体及其抑制突变体基因的鉴定与克隆、解析病健组织间细胞命运的精细调控机制,以及如何利用类病斑突变体开展抗逆分子设计育种进行了讨论。 | 沈旺鑫 史小品 杜海波 冯志明 陈宗祥 胡珂鸣 范江波 左示敏 | 2022 | 江苏农业学报2022，38，3： | 1 |
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