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iNaturalist:
Sugar maple spotting slows as Canada's fall color fades
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Red oak spotting slows down as fall colors fade
iNaturalist:
This fuzzy forest moss is suddenly everywhere in Canada
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Milkweed sightings stay high across Canada as autumn sets in
Cold-induced peptide signalling secures pollen resilience and crop yield.
PubMed · 2026-06-03
Scientists discovered a molecular alarm system in tomato plants that protects pollen from cold damage. By boosting two tiny signaling peptides, they prevented up to 52% of cold-induced crop losses in tomatoes — and found the same protective mechanism works in rice, pointing toward a broad strategy for cold-proofing crops.
1
Two small signaling peptides (RGF9 and RGF10) specifically protect tomato pollen from cold-induced abortion; plants lacking them are otherwise normal but lose pollen after cold stress
2
Overexpressing these peptides in tomato plants prevented up to 52% of cold-induced yield losses
3
The same protective pathway exists in rice, where boosting homologous peptides recovered 18.3% of grain yield lost to cold stress
