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Image credit: Nitrogen nutrition and signaling during root nodule symbiosis impact the community assemblies. Lotus plants grown in the presence of inorganic nitrogen secrete specific metabolites and assemble a microbial community with low connectivity. Lotus plants grown in symbiosis-permissive conditions secrete metabolites such as flavonoids (1) that induce Nod factor production in compatible nitrogen-fixing Rhizobiumisolates (2). Nod factors are recognized by the Lotus host which initiates a signaling pathway (3) to accommodate the symbiont. Symbiotically active roots have an exudate profile (4) and associated microbial communities that differ from plants grown in the presence of inorganic nitrogen. It remains to be determined how bacterial communities associated with symbiotically active plants impact the host to promote the symbiotic association and plant growth (5). Figeure: from Ke Tao et al. 2024)
A new study reveals key role of plant-bacteria communication for the assembly of a healthy plant microbiome supporting sustainable plant nutrition AgricultureNewsPlant Science

A new study reveals key role of plant-bacteria communication for the assembly of a healthy plant microbiome supporting sustainable plant nutrition

Researchers found that specific molecules enable symbiotic bacteria to communicate with legume plants, influencing bacterial growth near roots. This signaling fosters beneficial partnerships for nutrient uptake and resilience, crucial for sustainable agriculture. The study highlights the role of plant-bacteria communication…
Isabel
21/06/2024
Image: Hibiscus rosa sinensis . Credit: Nandhu Kumar / Pixabay
Scientists discover primary wound signal that promotes plant regeneration NewsPlant Science

Scientists discover primary wound signal that promotes plant regeneration

Scientists identified REGENERATION FACTOR1 (REF1) as the primary wound signal that initiates plant regeneration. REF1 binds its receptor PORK1 to activate SlWIND1, promoting cellular reprogramming and tissue repair. This breakthrough enhances crop transformation efficiency, offering a universal solution for improving…
Isabel
20/06/2024
Image: In the photo: Norway spruce damaged by wind. Credit: Alexander Pulgarin Diaz.
Norway spruce in Finland is susceptible to European spruce bark beetle damage especially in the vicinity of new clear-cuts NewsPlant Science

Norway spruce in Finland is susceptible to European spruce bark beetle damage especially in the vicinity of new clear-cuts

A study reveals that Norway spruce forests near recent clear-cuts are highly susceptible to European spruce bark beetle damage. The beetle prefers mature forests in specific soil types. Increased monitoring and adaptive forest management are recommended to mitigate this threat,…
Isabel
17/06/2024