Plants commonly face the threat of invasion by a wide variety of pathogens and have developed sophisticated immune mechanisms to defend against infectious diseases. However, successful pathogens have evolved diverse mechanisms to overcome host immunity and cause diseases. Different cell structures and unique cellular organelles carried by plant cells endow plant-specific defense mechanisms, in addition to the common framework of innate immune system shared by both plants and animals. Effectors serve as crucial virulence weapons employed by phytopathogens to disarm the plant immune system and promote infection. Here we summarized the many diverse strategies by which phytopathogen effectors overcome plant defense and prospected future perspectives. This article is categorized under: Infectious Diseases > Molecular and Cellular Physiology.
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http://dx.doi.org/10.1002/wsbm.1592 | DOI Listing |
J Fungi (Basel)
December 2024
College of Agronomy, Guangxi University, Nanning 530004, China.
Carbohydrate-binding modules (CBMs) are essential virulence factors in phytopathogens, particularly the extensively studied members from the CBM50 gene family, which are known as lysin motif (LysM) effectors and which play crucial roles in plant-pathogen interactions. However, the function of CBM50 in has yet to be fully studied. In this study, we identified seven CBM50 genes from the genome through complete sequence analysis and functional annotation.
View Article and Find Full Text PDFJ Fungi (Basel)
November 2024
Institute of Vegetable, Zhejiang Academy of Agricultural Science, Hangzhou 310021, China.
wilt in eggplant caused by f. sp. is a major devastating soil-borne disease on a worldwide scale.
View Article and Find Full Text PDFMycobiology
November 2024
Department of Applied Biology, Chungnam National University, Daejeon, South Korea.
is a significant phytopathogen causing downy mildew disease in cucurbit crops. Understanding the molecular mechanisms underlying the interaction between and its host is essential for developing effective disease management strategies. RxLR effectors, secreted by pathogens, play a crucial role in modulating host immunity.
View Article and Find Full Text PDFNew Phytol
January 2025
College of Plant Protection, State Key Laboratory of Wheat Improvement, Shandong Agricultural University, Taian, 271018, China.
Type-3 effectors (T3E) of phytopathogenic Gram-negative bacteria fulfill a virulent role, causing disease, or an avirulent role, inducing immunity, following their translocation into plant cells. This study aimed to validate the hypothesis that bacterial T3E translocation requires lipidic compounds in plant cell membranes. Based on genetic, molecular, and biochemical assays, we determined that phosphatidylinositol 4-phosphate (PI4P) associated with plant cell membranes is essential for the translocation of T3E by bacterial pathogens.
View Article and Find Full Text PDFNat Commun
October 2024
State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei Province, China.
Phytopathogens often secrete effectors to enhance their infection of plants. In the case of Sclerotinia sclerotiorum, a necrotrophic phytopathogen, a secreted protein named SsPEIE1 (Sclerotinia sclerotiorum Plant Early Immunosuppressive Effector 1) plays a crucial role in its virulence. During the early stages of infection, SsPEIE1 is significantly up-regulated.
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