Plant Immunity: AvrPto Targets the Frontline
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چکیده
منابع مشابه
Plant Immunity: AvrPto Targets the Frontline
Bacterial pathogens must suppress host defences to cause disease. New research shows that the Pseudomonas effector protein AvrPto does so by directly targeting plant transmembrane receptor kinases involved in bacterial perception.
متن کاملThe Pseudomonas syringae type III effector HopG1 targets mitochondria, alters plant development and suppresses plant innate immunity.
The bacterial plant pathogen Pseudomonas syringae uses a type III protein secretion system to inject type III effectors into plant cells. Primary targets of these effectors appear to be effector-triggered immunity (ETI) and pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI). The type III effector HopG1 is a suppressor of ETI that is broadly conserved in bacterial plant pathog...
متن کاملPseudomonas syringae Effector AvrPto Blocks Innate Immunity by Targeting Receptor Kinases
Plants use receptor kinases, such as FLS2 and EFR, to perceive bacterial pathogens and initiate innate immunity. This immunity is often suppressed by bacterial effectors, allowing pathogen propagation. To counteract, plants have evolved disease resistance genes that detect the bacterial effectors and reinstate resistance. The Pseudomonas syringae effector AvrPto promotes infection in susceptibl...
متن کاملPlant Innate Immunity
The ability to discriminate between selfand nonself-molecules is characteristic of all living organisms. This feature forms the basis for the activation of innate immune responses uponmicrobial attack. Ifmicrobes bypass the external physical barrier, plants have evolved two classes of immune receptors to detect nonself-molecules to prevent further pathogen progress. One class consists of membra...
متن کاملInitiation of Plant Disease Resistance by Physical Interaction of AvrPto and Pto Kinase
Resistance to bacterial speck disease in tomato occurs when the Pto kinase in the plant responds to expression of the avirulence gene avrPto in the Pseudomonas pathogen. Transient expression of an avrPto transgene in plant cells containing Pto elicited a defense response. In the yeast two-hybrid system, the Pto kinase physically interacted with AvrPto. Alterations of AvrPto or Pto that disrupte...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2008
ISSN: 0960-9822
DOI: 10.1016/j.cub.2008.01.016