Results 111 to 120 of about 28,368 (283)

Contrasting Responses of Oceanic and Coastal Synechococcus to Iron Limitation and Warming Interactions

open access: yesEnvironmental Microbiology Reports, Volume 17, Issue 4, August 2025.
Oceanic Synechococcus respond to the interactive effects of iron (Fe) limitation and ocean warming by regulating photosynthesis, nutrient metabolism, and heat shock gene expression, while a coastal strain has fewer regulatory mechanisms. The oceanic strain may be a superior competitor with more comprehensive and flexible responses in Fe‐poor ...
Ran Duan   +8 more
wiley   +1 more source

Comparative biochemistry of CO2 fixation and the evolution of autotrophy [PDF]

open access: yes, 2010
Carbon dioxide fixation is a polyphyletic trait that has evolved in widely separated prokaryotic branches. The three principal CO2-assimilation pathways are (i) the reductive pentose-phosphate cycle, i. e.
Ana María Velasco   +3 more
core   +2 more sources

Taxonomic and Functional Features of Surface to Deep‐Sea Prokaryotic Communities in the Eastern North Pacific Ocean

open access: yesEnvironmental Microbiology Reports, Volume 17, Issue 4, August 2025.
The North Pacific Ocean is characterised by a complex interplay of microbial metabolic pathways, where key processes such as carbon fixation (via the Calvin cycle, HP/HB cycle and Wood–Ljungdahl pathway), sulphur oxidation and phosphonate metabolism take place at different pelagic zones.
Daniele De Corte   +6 more
wiley   +1 more source

"A Methylotrophic Thermotolerant Actinomycete With a NAD+- Dependent Methanol Dehydrogenase" [PDF]

open access: yesIranian Journal of Public Health, 2002
The methylotrophic thermo tolerant actinomycete strain 381, was isolated from a compost sample, assimilated methanol during growth. Methanol dehydrogenase could not be detected in cell extracts using dye-linked assays in the absence of NAD ...
S Eshraghi, Ian C Hancock, E Williams
doaj   +2 more sources

Investigating soil mesofauna cryptic diversity: Current challenges and perspectives

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 8, Page 1587-1598, August 2025.
Abstract Cryptic species lacking distinct morphological features are widespread among soil fauna, including such functionally significant groups as springtails, mites and enchytraeids. Their presence, diversity and biomass may impact ecosystem services provided by belowground ecosystems.
Margarita A. Danilova   +3 more
wiley   +1 more source

Evidence for a CO2‐concentrating mechanism in the model streptophyte green alga Chara braunii

open access: yesNew Phytologist, Volume 247, Issue 3, Page 1218-1233, August 2025.
Summary Oxygenic photosynthesis in streptophytic algae, such as Charophyceae, is often impeded by low CO2 levels in aquatic habitats. Consequently, many algal groups evolved a CO2‐concentrating mechanism (CCM). However, its presence in Charophyceae remains controversial.
Carolin M. Heise   +6 more
wiley   +1 more source

Diurnal Changes in Photosynthesis in Sugarcane Leaves: I. Carbon dioxide exchange rate, photosynthetic enzyme activities and metabolite levels relating to the C4 pathway and the Calvin cycle

open access: yesPlant Production Science, 2000
Diurnal changes in carbon dioxide exchange rate (CER), stomatal conductance (gs), photosynthetic enzyme activities and metabolite levels relating to the C4 pathway and the Calvin cycle in sugarcane (Saccharum sp. cv.
Yu-Chun Du   +3 more
doaj   +1 more source

Improving cucumber photosynthetic capacity under NaCl stress by grafting onto two salt-tolerant pumpkin rootstocks

open access: yesBiologia Plantarum, 2011
Cucumber plants were either self-grafted or grafted onto two salt-tolerant pumpkin rootstocks Chaojiquanwang (Cucurbita moschata Duch), and Figleaf Gourd (Cucurbita ficifolia Bouche).
Y. Huang   +4 more
doaj   +1 more source

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