Results 111 to 120 of about 149,739 (305)

Ecophysiological traits of grasses: resolving the effects of photosynthetic pathway and phylogeny

open access: yes, 2009
C4 photosynthesis is an important example of convergent evolution in plants, having arisen in eudicots, monocots and diatoms. Comparisons between such diverse groups are confounded by phylogenetic and ecological differences, so that only broad ...
Colin P. Osborne   +6 more
core   +1 more source

CAUSES OF DAILY RHYTHMS IN PHOTOSYNTHETIC RATES OF PHYTOPLANKTON

open access: yesThe Biological Bulletin, 1973
The cause for the daily rhythm in the photosynthetic capacity of phytoplankton has been examined. Alternative hypotheses have been modeled with the Michaelis-Menten equation. In one model rates of photosynthesis oscillate in response to a forcing from the external concentration of limiting nutrient while photosynthetic potential (Umax) of the ...
Stross, R G, Chisholm, S W, Downing, T A
openaire   +2 more sources

Lunar‐Based Photothermal CO2 Reduction Strategy: Self‐Evolving Transient Active Interface and Band Engineering

open access: yesAdvanced Science, EarlyView.
A self‐evolving Pd/Ov‐FeTiO3 photothermal catalyst, inspired by lunar soil, enables efficient extraterrestrial CO2 conversion. The formation of transient active interfaces and oxygen vacancies extends light absorption to the infrared range and optimizes electron transfer.
Yahang Wang   +11 more
wiley   +1 more source

Relationship Between Simulated Chinese Rose Beetle (Coleoptera: Scarabaeidae) Feeding and Photosynthetic Rate Reduction [PDF]

open access: yes, 1990
Photosynthetic rate measurements of the remaining leaf lamina tissue were taken from snap bean and corn plants after simulated Chinese rose beetle, Adoretus sinicus Burmeister, feeding.
Arita, Lorna H.   +2 more
core  

Dipole‐Manipulated Built‐In Electric Field Enables Ultrafast Charge Separation in Perylene Diimide Polymers for Photoelectrochemical Water Splitting

open access: yesAdvanced Science, EarlyView.
Molecular dipole engineering in dendritic perylene diimide polymers through nitrogen‐rich heterocyclic linkers amplifies the built‐in electric field, enabling sub‐picosecond charge separation and efficient multi‐electron accumulation. This structure–dynamics–performance relationship establishes a versatile design strategy for high‐performance organic ...
Ying‐Xin Qiao   +11 more
wiley   +1 more source

The measurement of seagrass photosynthesis using pulse amplitude modulated (PAM) fluorometry and its practical applications, specifically in regard to transplantation

open access: yes, 2006
Photosynthetic activity of three seagrass species, Posidonia sinuosa Cambridge et Kuo, Posidonia australis Hook. f. and Halophila ovalis (R. Br.) Hook., growing in Cockburn Sound, Western Australia, was assessed using an underwater pulse amplitude ...
Horn, Lotte
core  

MAXIMUM PHOTOSYNTHETIC RATE‐A CASE STUDY IN APPLE [PDF]

open access: yesNew Phytologist, 1977
SUMMARYWidely different rates of carbon dioxide assimilation by apple leaves have been reported. Data from forty‐nine papers are examined and likely reasons for their variation are deduced. Many studies were made on glasshouse‐grown plants, the leaves of which can have a very different structure and photosynthetic capacity from those grown outdoors ...
openaire   +1 more source

Trophic Diversity in Duckweed: Mixotrophy, More Than the Sum of its Extremes

open access: yesAdvanced Science, EarlyView.
In the context of rising DOC in aquatic environments, mixotrophic duckweed may impact carbon cycling by acting as either a carbon sink, as they absorb CO2 through photosynthesis, or a carbon source, as they release CO2 through respiration of absorbed DOC, which depends on DOC concentration, light availability, temperature, and other environmental ...
Zuoliang Sun   +5 more
wiley   +1 more source

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