Results 91 to 100 of about 13,627 (186)

From apex to base: Uncovering spatial metabolic adaptation in Antarctic mosses

open access: yesBulletin of the Korean Chemical Society, Volume 47, Issue 10, Page 1257-1268, October 2026.
Antarctic mosses survive extreme cold, desiccation, UV exposure, and oxidative stress. We analyzed three species by separating apical, middle, and basal zones. Each zone showed distinct metabolite patterns and biological roles, revealing spatial metabolic specialization. The results suggest that whole‐plant survival depends on coordinated contributions
Fatima Tuz Zahra   +7 more
wiley   +1 more source

Photoinhibition as affected by photoacclimation in phytoplankton: a model approach.

open access: yes, 1998
The photosynthesis-irradiance curve (or PI-curve, for short) in phytoplankton is highly plastic, in response to changes in the environment. The response to changes in the long term average irradiance is usually designated by the term 'photoacclimation ...
Zonneveld, C.
core   +1 more source

Outdoor cultivation of Picochlorum sp. in a novel V-shaped photobioreactor on the Caribbean island Bonaire

open access: yesFrontiers in Bioengineering and Biotechnology
Microalgae are a promising renewable feedstock that can be produced on non-arable land using seawater. Their biomass contains proteins, lipids, carbohydrates, and pigments, and can be used for various biobased products, such as food, feed, biochemicals ...
Rocca Chin-On   +8 more
doaj   +1 more source

Moderate photoinhibition of photosystem II protects photosystem I from photodamage at chilling stress in tobacco leaves

open access: yesFrontiers in Plant Science, 2016
It has been indicated that photosystem I (PSI) is susceptible to chilling-light stress in tobacco leaves, but the effect of growth light intensity on chilling-induced PSI photoinhibition in tobacco is unclear.
Wei eHuang   +3 more
doaj   +1 more source

Metabolic Dynamics of an Offshore Coral Reef in the Central Red Sea: Observations From Autonomous Sensors

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 10, October 2026.
Abstract Coral reefs are increasingly threatened by local and global stressors. Traditional visual reef monitoring methods are time‐intensive and provide only a snapshot of reef condition. Recent efforts aim to measure reef metabolism, or the balance of net community production (NCP) and net community calcification (NCC), as coral reef carbonate ...
Emily M. Hammermeister   +9 more
wiley   +1 more source

Future Decline of Ice‐Algal Primary Productivity in the Arctic Ocean: Model Intercomparison

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract A potential future evolution of ice‐algal primary productivity (ice‐PP) in the Arctic Ocean is investigated through an intercomparison of three sea ice‐ocean coupled models: JAM (Japan), IOS (Canada), and UTAS (Australia). Ice‐PP and related environmental variables are analyzed for three time periods: 1979–2018 (Phase 1), 2021–2060 (Phase 2 ...
Yuanxin Zhang   +4 more
wiley   +1 more source

How does cyclic electron flow alleviate photoinhibition in Arabidopsis?

open access: yes, 2009
Cyclic electron flow (CEF) around photosystem I has a role in avoiding photoinhibition of photosystem II (PSII), which occurs under conditions in which the rate of photodamage to PSII exceeds the rate of its repair.
Takahashi, Shunichi   +9 more
core   +1 more source

Phosphate Enrichment From Wildlife Inputs Shapes the Distribution and Pigmentation of Green and Red Snow Algae Along the West Antarctic Peninsula

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 10, October 2026.
Abstract Snow algae darken snow through biomass accumulation and pigmentation, yet nutrient controls on algal abundance and pigment composition in Antarctic snowfields remain poorly constrained. Along the West Antarctic Peninsula (WAP), coastal snowfields receive nutrient inputs from marine and wildlife sources that may influence bloom development.
Elise L. Ryan, Alia L. Khan
wiley   +1 more source

Photoinhibition in the Antarctic moss Grimmia antarctici Card when exposed to cycles of freezing and thawing

open access: yes, 1995
Freezing and thawing of the endemic moss species Grimmia antarctici Card, caused photoinhibition. When snow cover was removed from moss in the field, resulting in exposure to fluctuating temperatures and light conditions, photoinhibition, measured as a ...
Lovelock, CE, Osmond, CB, Seppelt, RD
core   +1 more source

Pontomesencephalic Tegmental Afferents to VTA Non-dopamine Neurons Are Necessary for Appetitive Pavlovian Learning

open access: yesCell Reports, 2016
The ventral tegmental area (VTA) receives phenotypically distinct innervations from the pedunculopontine tegmental nucleus (PPTg). While PPTg-to-VTA inputs are thought to play a critical role in stimulus-reward learning, direct evidence linking PPTg-to ...
Hau-Jie Yau   +7 more
doaj   +1 more source

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