Results 81 to 90 of about 27,922 (261)

Ecotoxicology of Mercerized Cellulose–Treated Tannery Effluents Using Salvinia auriculata (Salviniaceae) as a Bioindicator

Environmental Toxicology, EarlyView.
ABSTRACT Given the growing concern over the environmental impacts of industrial effluents, particularly from tanneries, assessing the ecotoxicological risks associated with these effluents, even after remediation treatments, is crucial. Therefore, we aimed to evaluate the potential effects of exposure to raw and treated tannery effluents with ...
Alex Rodrigues Gomes, Letícia Paiva de Matos, Abner Marcelino Silva, Abraão Tiago Batista Guimrães, Thiarlen Marinho da Luz, Rafaela Ribeiro de Brito, Aline Sueli Lima de Rodrigues, Juraci Alves de Oliveira, Ivandilson Pessoa Pinto de Menezes, Guilherme Malafaia   +9 more
wiley   +1 more source

Fulvic Acid Enhances Oat Growth and Grain Yield Under Drought Deficit by Regulating Ascorbate–Glutathione Cycle, Chlorophyll Synthesis, and Carbon–Assimilation Ability

Agronomy
Drought deficit inhibits oat growth and yield. Fulvic acid (FA) can enhance plant stress tolerance, but its effects on regulating the ascorbate–glutathione cycle, chlorophyll synthesis, and carbon–assimilation ability remain unclear.
Shanshan Zhu, Junzhen Mi, Baoping Zhao, Yongjian Kang, Mengxin Wang, Jinghui Liu   +5 more
doaj   +1 more source

The Diverse AAA+ Machines that Repair Inhibited Rubisco Active Sites

Frontiers in Molecular Biosciences, 2017
Gaseous carbon dioxide enters the biosphere almost exclusively via the active site of the enzyme ribulose 1,5-bisphosphate carboxylase/oxygenase (Rubisco).
Oliver Mueller-Cajar
doaj   +1 more source

Molecular and Morphological Characterization of Colaconema formosanum sp. nov. (Colaconemataceae, Rhodophyta)—A New Endophytic Filamentous Red Algal Species from Taiwan

Journal of Marine Science and Engineering, 2021
The genus Colaconema, containing endophytic algae associated with economically important macroalgae, is common around the world, but has rarely been reported in Taiwan. A new species, C.
Meng-Chou Lee, Han-Yang Yeh
doaj   +1 more source

Characteristic Features of the Regulatory Functions of the ᴅ-Ribulose 1,5-Bisphosphate Carboxylase/Oxygenase from Spinach [PDF]

, 1983
Catalysis and regulation of CO2 fixation differ in a characteristic manner in their response to anionic modifiers and the polarity of the reaction medium. Monovalent inorganic anions inhibit catalysis and CO2-activation of the ᴅ-ribulose 1,5-bisphosphate
Erdin, Nazmiye, Gaudszun, Thomas, Lange, Benita, Salnikow, Johann, Vater, Joachim   +4 more
core   +1 more source

Effects of short- and long-term elevated CO2 on the expression of ribulose-1,5-bisphosphate carboxylase/oxygenase genes and carbohydrate accumulation in leaves of Arabidopsis thaliana (L.) Heynh.

Plant Physiology, 1998
To investigate the proposed molecular characteristics of sugar-mediated repression of photosynthetic genes during plant acclimation to elevated CO2, we examined the relationship between the accumulation and metabolism of nonstructural carbohydrates and ...
Shu-Hua Cheng, B. Moore, J. Seemann
semanticscholar   +1 more source

Inhibition of ribulose bisphosphate carboxylase by substrate ribulose 1,5-bisphosphate.

Journal of Biological Chemistry, 1983
Substrate ribulose bisphosphate is a potent and a weak inhibitor of the rate of CO2/Mg2+ activation in the carboxylase purified from spinach leaves and Rhodospirillum rubrum, respectively. At 2 degrees C, the concentration of ribulose bisphosphate required for 50% inhibition of the initial rate of CO2/Mg2+ activation was less than 0.4 microM for the ...
Raymond Chollet, Douglas B. Jordan
openaire   +3 more sources

Dependence of Photosynthesis of Sunflower and Maize Leaves on Phosphate Supply, Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase Activity, and Ribulose-1,5-Bisphosphate Pool Size [PDF]

Plant Physiology, 1992
Sunflower (Helianthus annuus L. cv Asmer) and maize (Zea mays L. cv Eta) plants were grown under controlled environmental conditions with a nutrient solution containing 0, 0.5, or 10 millimolar inorganic phosphate. Phosphate-deficient leaves had lower photosynthetic rates at ambient and saturating CO(2) and much smaller carboxylation efficiencies than ...
Jacob, J., Lawlor, D. W.
openaire   +3 more sources

Investigating soil mesofauna cryptic diversity: Current challenges and perspectives

Methods in Ecology and Evolution, EarlyView.
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, Elena Y. Zvychaynaya, Polina A. Guseva, Andrey S. Zaitsev   +3 more
wiley   +1 more source

Role of Structural Features in Oligomerization, Active-Site Integrity and Ligand Binding of Ribose-1,5-Bisphosphate Isomerase

Computational and Structural Biotechnology Journal, 2019
Pentose bisphosphate pathway, exclusively found in archaea, is similar to the pentose phosphate pathway present in bacteria and eukarya. In pentose bisphosphate pathway, the conversion of ribose moieties of nucleosides into 3-phosphoglycerate (3-PGA ...
Prerana Gogoi, Shankar Prasad Kanaujia
doaj