Linking sensing to signaling during plant immunity

Plant defense against invading pathogens relies upon effective recognition of non-self organisms and a subsequent signaling response characterized by reprogramming of host gene expression and localized cell death to combat ...

Troika of proteins controls leaf old age onset

Researchers at the Center for Plant Aging Research, within the Institute for Basic Science (IBS), have discovered that a three protein hub – dubbed NAC troika—controls the onset of leaf old age. Their systematic study, ...

Single enzyme controls two plant hormones

Scientists at Washington University in St. Louis isolated an enzyme that controls the levels of two plant hormones simultaneously, linking the molecular pathways for growth and defense.

Plant signals travel different routes to turn on defense

Faced with a pathogen, important signaling chemicals within plant cells travel different routes to inform the plant to turn on its defense mechanisms, according to a recent University of Kentucky study.

Unearthing cornerstones in root microbiomes

Like the tip of an iceberg, a plant sprouting from the soil barely hints at what lies beneath. At the nexus where roots and soil intersect are thriving microbial communities that play important roles in plant health and growth. ...

Dual internal clocks keep plant defenses on schedule

Time management isn't just important for busy people—it's critical for plants, too. A Duke University study shows how two biological clocks work together to help plants deal with intermittent demands such as fungal infections, ...

Signalling pathway links local and systemic plant immunity

(Phys.org) —When plants discover a pathogen, they prepare for system-wide attack so they are ready to fight on all levels. Working with colleagues, Annegret Ross and Yusuke Saijo of the Max Planck Institute for Plant Breeding ...

Microbes help beetles defeat plant defenses

Some symbiotic bacteria living inside Colorado potato beetles can trick plants into reacting to a microbial attack rather than that of a chewing herbivore, according to a team of Penn State researchers who found that the ...

'Fountain of youth' for leaves discovered

What plant scientists call senescence, consumers experience as wilted produce and overripe fruit. A team led by Cornell horticulture professor Su-Sheng Gan has identified an enzymatic fountain of youth that slows the process ...

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