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How do plants balance microbial friends and foes?

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IMAGE: Mechanisms of symbiotic engagement three principles by which plants may select for or restrict potential mutualists or pathogens.
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Credit: David Thoms, Yan Liang, and Cara H. Haney
Plants are constantly exposed to microbes: pathogens that cause disease, commensals that cause no harm or benefit, and mutualists that promote plant growth or help fend off pathogens. For example, most land plants can form positive relationships with arbuscular mycorrhizal fungi to improve nutrient uptake. How plants fight off pathogens without also killing beneficial microbes or wasting energy on commensal microbes is a largely unanswered question.
In fact, when scientists within the field of Molecular Plant-Microbe Interactions were asked to come up with their Top 10 Unanswered Questions, the #1 question was How do plants engage with beneficial microorganisms while at the same time restricting pathogens? Put more simply, how do plants tell ....

United Kingdom , David Thoms , Cara Haney , University Of British Columbia , Yan Liang At Zhejiang University , Molecular Plant Microbe Interactions , British Columbia , Yan Liang , Zhejiang University , Symbiotic Homeostasis , Same Time Restricting , Agricultural Production Economics , Ood Food Science , Plant Sciences , Cell Biology , Ecology Environment , Molecular Biology , ஒன்றுபட்டது கிஂக்டம் , பல்கலைக்கழகம் ஆஃப் பிரிட்டிஷ் கொலம்பியா , மூலக்கூறு ஆலை நுண்ணுயிர் இடைவினைகள் , பிரிட்டிஷ் கொலம்பியா , யான் லியாங் , ஜெஜியாங் பல்கலைக்கழகம் ,

Study reports novel role of enzyme in plant immunity and defense gene expression

A recently published article in the
Molecular Plant-Microbe Interactions journal provides new evidence that pathogens are hijacking the plant immune system to cause disease while providing insights into a newly discovered mechanism.
A large variety of pathogens infect plants and cause different diseases, which can lead to reduced crop yields. During infection, pathogens secrete effector proteins into the plant cell. Some of these proteins target plant proteasomal degradation machinery, which is responsible for recycling proteins to regulate cell processes. Some E1, E2 and E3-ligase proteins have been identified as playing a role in plant susceptibility or resistance to pathogen invasion. SALT- AND DROUGHT-INDUCED RING FINGER1 (SDIR1) is an E3-ligase that degrades regulators of the plant hormone abscisic acid (ABA) in response to drought stress. ....

Ramu Vemanna , Noble Research Institute , Regional Center , Molecular Plant Microbe Interactions , Novel Role , Modulating Plant Defense Against Hemibiotrophic , Agricultural Production Economics , Ood Food Science , Plant Sciences , Cell Biology , Molecular Biology , உன்னத ஆராய்ச்சி நிறுவனம் , பிராந்திய மையம் , மூலக்கூறு ஆலை நுண்ணுயிர் இடைவினைகள் , நாவல் பங்கு ,

The puzzle of nonhost resistance: why do pathogens harm some plants but not others?

Credit: Ralph Panstruga & Matthew Moscou
People have puzzled for years why pathogen
Phytophthora infestens causes the devastating late blight disease, source of the Irish Potato famine, on potatoes, but has no effect at all on plants like apple or cucumber. How are apple trees and cucumber plants able to completely shake off this devastating pathogen? Agricultural scientists have wondered for years: if this resistance is so complete and persists over so many generations, is there some way we could transfer it to susceptible plants like wheat and thereby stop disease?
Why is it so important to determine the molecular basis of nonhost resistance? ....

Glasgow City , United Kingdom , Ralph Panstruga , Aachen University , Sainsbury Laboratory In Norwich , International Congress On Molecular Plant , Irish Potato , Matthew Moscou , Sainsbury Laboratory , Molecular Basis , Molecular Plant Microbe Interactions , கிளாஸ்கோ நகரம் , ஒன்றுபட்டது கிஂக்டம் , ஆச்சென் பல்கலைக்கழகம் , சைன்ஸ்பரி ஆய்வகம் இல் நார்விச் , சர்வதேச காங்கிரஸ் ஆன் மூலக்கூறு ஆலை , ஐரிஷ் பொட்யாடோ , சைன்ஸ்பரி ஆய்வகம் , மூலக்கூறு அடிப்படையில் , மூலக்கூறு ஆலை நுண்ணுயிர் இடைவினைகள் ,

Chemical composition of wild potato relative contributes to its resistance to pathogen

Credit: Janak R. Joshi, Linxing Yao, Amy O. Charkowski, and Adam L. Heuberger
Potato is the most consumed vegetable crop worldwide. However, despite its importance, potato production is severely affected by high susceptibility to a wide range of microbial pathogens, such as bacteria from the genus
Pectobacterium, which cause various devastating diseases in potato and produce important economic losses.
Even though resistance to
Pectobacterium species is limited within cultivated potato varieties, it is known that a potato wild relative (
S. chacoense) is resistant to them; however, until recently, the underlying mechanisms of this phenomenon remained unknown.
In a recent study published in the ....

Adam Heuberger , Colorado State University , Molecular Plant Microbe Interactions , Wild Potato Inhibit Virulence Factors , Soft Rot , Blackleg Pathogen Pectobacterium , ஆடம் ெஉபேற்கேற் , கொலராடோ நிலை பல்கலைக்கழகம் , மூலக்கூறு ஆலை நுண்ணுயிர் இடைவினைகள் , மென்மையான அழுகல் ,