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New report of endophytic bacterium Achromobacter xylosoxidans from root tissue of Musa spp.
Mol Biol Rep
November 2023
Department of Botany, Raiganj University, Uttar Dinajpur, Raiganj, West Bengal, 733134, India.
Article Synopsis
- Endophytic bacteria, like Achromobacter xylosoxidans isolated from Cavendish banana plant roots, live inside plant tissues without causing visible harm.
- This bacterium promotes beneficial effects such as auxin (IAA) production, phosphate solubilization, and antifungal activity against the leaf spot disease caused by Curvularia lunata.
- GC-MS analysis identified bioactive compounds in A. xylosoxidans culture that contribute to its antifungal properties, and field tests confirm reduced leaf spots when applying this bacterium to infected banana plants.
Reduced Ca transient amplitudes may signify increased or decreased depolarization depending on the neuromodulatory signaling pathway.
Front Neurosci
July 2022
Department of Biological Sciences, The University of Toledo, Toledo, OH, United States.
Neuromodulators regulate neuronal excitability and bias neural circuit outputs. Optical recording of neuronal Ca transients is a powerful approach to study the impact of neuromodulators on neural circuit dynamics. We are investigating the polymodal nociceptor ASH in to better understand the relationship between neuronal excitability and optically recorded Ca transients.
View Article and Find Full Text PDFConcentration Addition, Independent Action, and Quantitative Structure-Activity Relationships for Chemical Mixture Toxicities of the Disinfection By products of Haloacetic Acids on the Green Alga Raphidocelis subcapitata.
Environ Toxicol Chem
May 2021
College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
The potential toxicity of haloacetic acids (HAAs), common disinfection by products (DBPs), has been widely studied; but their combined effects on freshwater green algae remain poorly understood. The present study was conducted to investigate the toxicological interactions of HAA mixtures in the green alga Raphidocelis subcapitata and predict the DBP mixture toxicities based on concentration addition, independent action, and quantitative structure-activity relationship (QSAR) models. The acute toxicities of 6 HAAs (iodoacetic acid [IAA], bromoacetic acid [BAA], chloroacetic acid [CAA], dichloroacetic acid [DCAA], trichloroacetic acid [TCAA], and tribromoacetic acid [TBAA]) and their 68 binary mixtures to the green algae were analyzed in 96-well microplates.
View Article and Find Full Text PDF(S)-Sulcatol Is a Pheromone Component for Two Species of Cerambycid Beetles in the Subfamily Lamiinae.
J Chem Ecol
June 2019
Department of Entomology, University of Illinois at Urbana-Champaign, 320 Morrill Hall, 505 S. Goodwin Ave., Urbana, IL, 61801, USA.
Males of several species in the large cerambycid beetle subfamily Lamiine, native to South and North America, are known to produce aggregation-sex pheromones composed of three related structures: the sesquiterpene catabolic product geranylacetone, its corresponding alcohol (known as fuscumol), and the acetate ester of the alcohol (fuscumol acetate). Here, we show that males of two lamiine species native to the eastern USA, Astylopsis macula (Say) and Leptostylus transversus (Gyllenhal) (both tribe Acanthocinini), produce pheromones composed of the structurally related (S)-6-methylhept-5-en-2-ol ([S]-sulcatol). Males of both species also produced 6-methylhept-5-en-2-one (sulcatone), and males of A.
View Article and Find Full Text PDFAttenuation of calmodulin regulation evokes Ca oscillations: evidence for the involvement of intracellular arachidonate-activated channels and connexons.
Mol Cell Biochem
June 2019
Institute of Cell Biophysics of the Russian Academy of Sciences, Pushchino, Moscow Region, Russia, 142290.
Intracellular Са controls its own level by regulation of Ca transport across the plasma and organellar membranes, often acting via calmodulin (CaM). Drugs antagonizing CaM action induce an increase in cytosolic Ca concentration in different cells. We have found persistent Са oscillations in cultured white adipocytes in response to calmidazolium (CMZ).
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