iNaturalist:
Sugar maple spotting slows as Canada's fall color fades
iNaturalist:
Red oak spotting slows down as fall colors fade
iNaturalist:
This fuzzy forest moss is suddenly everywhere in Canada
iNaturalist:
Milkweed sightings stay high across Canada as autumn sets in
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Invasive buckthorn sightings surge across Canada this week
iNaturalist:
Pokeweed sightings dip slightly as fall observation seaso...
iNaturalist:
This weedy wetland plant is everywhere on iNaturalist this week
iNaturalist:
Eastern redcedar is having a moment on iNaturalist this week
iNaturalist:
Sugar maple spotting slows as Canada's fall color fades
iNaturalist:
Red oak spotting slows down as fall colors fade
iNaturalist:
This fuzzy forest moss is suddenly everywhere in Canada
iNaturalist:
Milkweed sightings stay high across Canada as autumn sets in
Nuclear basket localized proteasomes maintain circadian period through nuclear TOC1 proteolysis
bioRxiv · 2026-05-23
Scientists discovered that special proteins at the nuclear pore — the cell's gatekeeper between nucleus and cytoplasm — help plants keep accurate 24-hour biological clocks by controlling the breakdown of a key clock protein called TOC1.
1
Mutant Arabidopsis plants lacking NUA or NUP136 nuclear basket proteins show significantly longer circadian periods than wildtype plants.
2
NUP136 physically recruits both the clock protein TOC1 and proteasome (cellular recycling machinery) components to the inner nuclear rim, forming a degradation complex.
3
Loss of NUP136 or NUA causes aberrant accumulation of TOC1 in the nucleus, directly linking nuclear pore basket function to circadian period length.
