Results 91 to 100 of about 27,922 (261)

Exogenous Si Mitigates the Effects of Cinnamic-Acid-Induced Stress by Regulating Carbon Metabolism and Photosynthetic Pigments in Cucumber Seedlings

Agronomy, 2022
(1) Background: Cinnamic acid (CA) is a harmful substance secreted by the roots of continuous-cropping crops. (2) Methods: This study aimed to investigate how exogenous Si affects chlorophyll content and carbon metabolism in cucumber seedlings under CA ...
Jian Lyu, Li Jin, Xin Meng, Ning Jin, Shuya Wang, Linli Hu, Guobin Zhang, Yue Wu, Shilei Luo, Jihua Yu   +9 more
doaj   +1 more source

Biodiversity in mountain soils above the treeline

Biological Reviews, EarlyView.
ABSTRACT Biological diversity in mountain ecosystems has been increasingly studied over the last decade. This is also the case for mountain soils, but no study to date has provided an overall synthesis of the current state of knowledge. Here we fill this gap with a first global analysis of published research on cryptogams, microorganisms, and fauna in ...
Nadine Praeg, Michael Steinwandter, Davnah Urbach, Mark A. Snethlage, Rodrigo P. Alves, Martha E. Apple, Peter Bilovitz, Andrea J. Britton, Estelle P. Bruni, Ting‐Wen Chen, Kenneth Dumack, Fernando Fernandez‐Mendoza, Michele Freppaz, Beat Frey, Nathalie Fromin, Stefan Geisen, Martin Grube, Elia Guariento, Antoine Guisan, Qiao‐Qiao Ji, Juan J. Jiménez, Stefanie Maier, Lucie A. Malard, Maria A. Minor, Cowan C. Mc Lean, Edward A. D. Mitchell, Thomas Peham, Roberto Pizzolotto, Andy F. S. Taylor, Philippe Vernon, Johan J. van Tol, Donghui Wu, Yunga Wu, Zhijing Xie, Bettina Weber, Paul Illmer, Julia Seeber   +36 more
wiley   +1 more source

Divergent physiological and molecular responses of light‐ and iron‐limited Southern Ocean phytoplankton

Limnology and Oceanography Letters, 2022
It has recently been shown that Southern Ocean phytoplankton species have evolved to optimize their light‐harvesting potential without increasing the high iron‐requiring proteins used for photosynthesis.
Sarah M. Andrew, Robert F. Strzepek, Spencer M.Whitney, Wah Soon Chow, Michael J. Ellwood   +4 more
doaj   +1 more source

Towards DNA metabarcoding‐based haplotype for monitoring terrestrial arthropod communities

Insect Conservation and Diversity, EarlyView.
The wocDNA metabarcoding includes robust sampling, wocDNA genomic extraction and library preparation. High‐throughput sequencing (HTS) followed by bioinformatic processing for quality control. The creation of a community matrix from haplotypes for ecological diversity and phylogenetic analyses.
Nancy Gálvez‐Reyes, Alicia Mastretta‐Yanes, Daniel Piñero   +2 more
wiley   +1 more source

ZZE-Configuration of chromophore ß-153 in C-phycocyanin from Mastigocladus laminosus [PDF]

, 1987
The photochemistry of C-phycocyanin has been studied after denaturation in the dark. It shows an irreversible reaction which has characteristics of a Ζ,Ζ,Ε- to Z,Z,Z-isomerization of dihydrobilins. Its amplitude depends on the reaction conditions, with
Bode, W., Fischer, R., Huber, R., Rüdiger, W., Scheer, Hugo, Schirmer, T., Schmidt, G., Siebzehnrübl, S.   +7 more
core   +1 more source

Rhizobacteria prime the activation of plant defense and nutritional responses to suppress aphid populations on barley over time

New Phytologist, EarlyView.
Summary Interactions between plants and soil microbes are widespread and are documented to modulate plant–insect herbivore interactions. Still, it remains unclear how these shape the overall plant defense responses and the mechanisms in suppressing insect populations.
Crispus M. Mbaluto, Sharon E. Zytynska
wiley   +1 more source

Exogenous spermidine enhances expression of Calvin cycle genes andphotosynthetic efficiency in sweet sorghum seedlings under salt stress

Biologia Plantarum, 2019
Salinity adversely affects plants resulting in disruption to plant growth and physiology. Previously, it has been shown that these negative effects can be alleviated by various exogenous polyamines.
A.I. EL SAYED, M.A.M. EL-HAMAHMY, M.S. RAFUDEEN, M.K.H. EBRAHIM   +3 more
doaj   +1 more source

Nascent polypeptide chains exit the ribosome in the same relative position in both eucaryotes and procaryotes. [PDF]

, 1983
We located the polypeptide nascent chain as it leaves cytoplasmic ribosomes from the plant Lemna gibba by immune electron microscopy using antibodies against the small subunit of the enzyme ribulose-1,5-bisphosphate carboxylase.
Bernabeu, C, Fowler, A, Lake, JA, Tobin, EM, Zabin, I   +4 more
core  

Inorganic carbon levels regulate growth via SigC signaling cascade in cyanobacteria

New Phytologist, EarlyView.
Summary Cyanobacterial growth depends on inorganic carbon (Ci; CO2 and bicarbonate) concentration, but mechanism(s) adjusting photosynthesis and growth according to Ci remain unclear. ΔrpoZ cells lacking the ω subunit of the RNA polymerase (RNAP) show a unique high‐CO2 lethal phenotype in Synechocystis sp. PCC 6803.
Juha Kurkela, Linda Vuorijoki, Serhii Vakal, Otso Turunen, Satu Koskinen, Viktoria Reimann, Mithila Ray, Wolfgang R. Hess, Tiina A. Salminen, Taina Tyystjärvi   +9 more
wiley   +1 more source

Functional hybrid rubisco enzymes with plant small subunits and algal large subunits: engineered rbcS cDNA for expression in chlamydomonas. [PDF]

, 2010
There has been much interest in the chloroplast-encoded large subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) as a target for engineering an increase in net CO(2) fixation in photosynthesis.
Genkov, Todor, Griffiths, Howard, Meyer, Moritz, Spreitzer, Robert J   +3 more
core   +2 more sources