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NewsAspens ‘remember’ past drought in their leaves
Drought may leave more than narrow rings inside a tree trunk. New research suggests quaking aspen can retain a chemical ‘memory’ of dry years, changing the defensive compounds in their leaves and reshaping the fungal communities that live on them long after soils have rewetted.
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NewsAn unusual bacterial defence system hides a powerful molecular switch
Researchers have uncovered a bacterial immune system that appears to work backwards. Unlike known retrons, which keep a toxin suppressed until infection, type VI retrons use phage-triggered DNA production to switch toxin activity on, revealing an unusually complex defence strategy that could inspire new gene-editing tools and antimicrobials.
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NewsCoral heat tolerance depends on species and location
Not all corals cope with rising ocean temperatures in the same way. New research shows that heat tolerance can vary sharply between species and even between nearby populations, with some corals from cooler, more exposed reefs proving unexpectedly resilient to thermal stress.
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NewsMicroalgae show promise as sustainable fertiliser for malting barley
New research has demonstrated that microalgae could provide a sustainable alternative to conventional mineral fertilisers for malting barley production. The study explored whether microalgae could help reduce the agricultural sector’s reliance on synthetic mineral fertilisers while maintaining crop performance and grain quality.
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NewsResearchers explore link between gut, brain health for people with HIV
Oregon Health & Science University researchers have secured a $5.8 million, five-year federal award to investigate whether damage to the gastrointestinal tract contributes to neuroinflammation in people living with HIV — raising the potential for new treatments to preserve brain function in people with HIV and older adults.
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NewsPL-5 spray improves healing in infected burn wounds, phase IIIb trial finds
A late-stage clinical trial found that a topical spray called peceleganan (PL-5) helped adults with mild infected burn wounds heal better than placebo. It enrolled 348 adults and compared the spray with a placebo. The study tested once-daily treatment for 14 days and tracked wound closure, bacterial clearance, and safety.
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