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Cellular and proteomic events associated with the localized formation of smut-gall during Zizania latifolia-Ustilago esculenta interaction

机译:Zizania Latifolia-Ustilago esculenta相互作用期间与局部形成的细胞和蛋白质组学事件相关的细胞和蛋白质组学事件

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The perennial wild rice Zizania latifolia is confined in the swampy habitat and wetland of the Indo-Burma biodiversity hotspot of India and infection by the biotrophic fungus Ustilago esculenta is hallmarked by swellings that develop to form localized smut-gall at the topmost internodal region. The cellular and proteomic events involved in the non-systemic colonization of Z. latifolia by U. esculenta leading to smut-gall formation is poorly understood. Proteins were extracted from the smut-gall region at the topmost intemodal region below the apical meristematic tissue from the infected and uninfected parts of Z. latifolia. By combining transmission electron microscopy (TEM) and fluorescent microscopy (FM), we showed that U. esculenta hyphal morphological transitions and movement occurred both intercellularly and intracellularly while sporulation occurred intracellularly in selective cells. Following proteome profiling using two dimensional SDS-PAGE at different phenological phases of smut-gall development and U. esculenta infection, differentially expressed proteins bands and their relative abundance were detected and subjected to liquid chromatography-tandem mass spectrometric (LC-MS/MS) analysis. Importantly, the fungus explores at least 7 metabolic pathways and 5 major biological processes to subdue the host defense and thrive successfully on Z. latifolia. The fungus U. esculenta produces proteases and energy acquisition proteins those enhance it's defensive and survival mode in the host. The identified differentially regulated proteins shed-light into why inflorescence is being replaced by bulbous smut-gall at late stages of the disease, as well as the development of resistance in some Z. latifolia plants against U. esculenta infection.
机译:多年生野生稻Zizania Latifolia被限制在沼泽栖息地和印度的湿地湿地,并且生物养殖真菌的感染eSsulago eSculuta被开发在最顶层的剧本区域形成局部粉碎的膨胀。由U.Seculula导致粉碎形成的Z. Latifolia的非全身定植的细胞和蛋白质组学事件。从受感染和未感染的Z. Latifolia的Apick共聚物组织的最顶部的血液沉积区域中从粉碎区域中萃取蛋白质。通过组合透射电子显微镜(TEM)和荧光显微镜(FM),我们显示U. esculuta亚酚形态转变和运动,同时形成细胞内和细胞内,而在选择细胞中细胞内发生孢子状。在使用二维SDS-PAGE的蛋白质组分析中,在粉碎的不同候阶段和U. esculula感染,检测差异表达的蛋白质带和它们的相对丰度,并进行液相色谱 - 串联质谱(LC-MS / MS)分析。重要的是,真菌探讨了至少7个代谢途径和5个主要生物过程,以在Z. Latifolia上制定主体防御和成功茁壮成功。真菌U. Esculenta产生蛋白酶和能量习得蛋白质,这些蛋白质增强了宿主中的防御和生存模式。将鉴定的差异调节的蛋白质脱光为为什么花序在疾病的后期阶段被球形粉碎,以及一些Z的抗性的发育。抗原植物对抗U. Esculenta感染。

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