Results 91 to 100 of about 367,787 (264)
Abstract Understanding dissolved concentrations of the essential coenzyme thiamin (vitamin B1) can provide insights into the biological controls on highly productive upwelling systems such as the California Current Ecosystem. To connect thiamin availability with microbial communities in the California Current Ecosystem, we measured concentrations of ...
Kelly C. Shannon+13 more
wiley +1 more source
Our study investigated how photosynthesis and its components acclimate to drought stress (DS) and growth temperature (Tgrowth) in wheat, and examined to what extent ignoring these acclimations would lead to errors in predicting photosynthesis. We found that both diffusional and biochemical parameters of photosynthesis and their thermal sensitivity ...
Liang Fang+6 more
wiley +1 more source
Chloroplast Genome Yields Unusual Seven-Cluster Structure C [PDF]
We studied the structuredness in a chloroplast genome of Siberian larch. The clusters in 63-dimensional space were identified with elastic map technique, where the objects to be clusterized are the different fragments of the genome. A seven-cluster structure in the distribution of those fragments reported previously has been found.
arxiv
Temperature‐dependent growth and activity in a globally distributed nitrogen‐fixing haptophyte
Abstract Dinitrogen (N2)‐fixing microorganisms play a crucial role in supplying nitrogen (N) to the oceans by converting atmospheric N2 into bioavailable N. N2 fixation was thought to be limited to warm oligotrophic ocean waters, but the association between the N2‐fixing UCYN‐A cyanobacterium and specific haptophytes, including Braarudosphaera ...
Esther Wing Kwan Mak+6 more
wiley +1 more source
Coordination of photosynthetic traits across soil and climate gradients
Using an Australia‐wide photosynthetic trait dataset, we tested predictions from least‐cost optimality theory, which posits that plants balance nutrient use and water loss to optimize photosynthesis. We found that leaf nitrogen and rates of water loss co‐vary with one another in response to climate and to a lesser extent, soils.
Andrea C. Westerband+14 more
wiley +1 more source
Well-supported phylogenies using largest subsets of core-genes by discrete particle swarm optimization [PDF]
The number of complete chloroplastic genomes increases day after day, making it possible to rethink plants phylogeny at the biomolecular era. Given a set of close plants sharing in the order of one hundred of core chloroplastic genes, this article focuses on how to extract the largest subset of sequences in order to obtain the most supported species ...
arxiv
The constraint of temperature and radiation on vegetation productivity was estimated with the variable θ. Values of θ differ during the start and end of season (SoS and EoS), indicating that radiation constraints the trend towards longer growing seasons but differently during spring and autumn.
Adrià Descals+7 more
wiley +1 more source
Abstract Experimental streams (ESs) are enclosures of fluvial ecosystems designed as flume microcosms to simulate flowing waters and assess environmental disturbances on aquatic communities' structure and function under controlled conditions. This study presents an ES system that combines ecological relevance with reliability in a compact design ...
Luciane Ayres Castro Reis+1 more
wiley +1 more source