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plant science Archives - The Global Plant Council

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

By | Agriculture, News, Plant Science

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 in assembling a healthy plant microbiome, enhancing plant nutrition and growth.

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Image: Hibiscus rosa sinensis . Credit: Nandhu Kumar / Pixabay

Scientists discover primary wound signal that promotes plant regeneration

By | News, Plant Science

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 genetic transformation in challenging crops like soybean, wheat, and maize.

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Image: Deep imaging reveals dynamics and signaling in one-to-one pollen tube guidance. Credit: Issey Takahashi

How plants mate for life and repel other suitors

By | News, Plant Science

Researchers developed a two-photon microscope technique to observe pollen tube elongation in angiosperms. They discovered signals that attract and repel pollen tubes, ensuring one-to-one guidance for successful fertilization. This intricate regulation optimizes seed production, offering insights to enhance agricultural breeding practices by improving seed yield and germination rates.

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