Plant growth-promoting rhizobacteria (PGPR) may contribute to sustainable crop production by improving plant growth and/or tolerance abiotic stresses. Soil salinity, which limits the productivity of plants, is one major concerns modern agriculture, especially in countries heavily affected climate change as Vietnam. Currently, only a few reports have studied local PGPR isolated Vietnam, particular Pseudomonas. Therefore, our study aimed isolate and identify region-specific Pseudomonas strain...

Summary The photosynthetic machinery of plants must be regulated to maximize the efficiency light reactions and CO 2 fixation. Changes in free Ca 2+ stroma chloroplasts have been observed at transition between darkness, also response stress stimuli. Such dynamics proposed regulate capacity. However, molecular mechanisms fluxes unknown. By employing a reporter‐based approach, we identified two chloroplast‐localized transporters Arabidopsis thaliana , BICAT 1 2, that determine amplitude...

The objectives of this study were to evaluate the plant growth promoting effects on Arabidopsis by Pseudomonas sp. strains associated with rhizosphere crop plants grown in Mekong Delta, Vietnam. Out all screened isolates, PS01 isolated from maize showed most prominent and (Zea mays). We also found that altered root system architecture (RSA). full genome was resolved using high-throughput sequencing. Phylogenetic analysis identified as a member putida subclade, which is closely related...

Summary Iron (Fe) is an essential element, its transport regulated by the cell redox balance. In seeds, Fe enters embryo as 2+ and stored in vacuoles 3+ . Through ferric reduction activity, ascorbate plays a major role state therefore within seed. We searched for membrane transporters responsible controlling screening yeast reductase‐deficient fre1 strain isolated AtDTX25 , member of Multidrug And Toxic compound Extrusion (MATE) family. was shown to mediate efflux when expressed Xenopus...

Ascorbic acid (AsA) and glutathione (GSH) are considered important factors to protect plants against abiotic stress. To investigate whether altered endogenous GSH AsA affect seed germination, plant performance the stress tolerance, deficient mutant cad2-1 AsA-deficient mutants (vtc2-4 vtc5-2) were phenotypically characterized for their shoot growth, photosynthetic activity root architecture under stresses. The cad2-1, vtc2-4 vtc5-2 showed a decrease in osmotic salt sensitivity ABA during...

Aeroponics is considered as a potential method for the culture of herbal plants due to high growth rate, quantity and quality enhancement secondary metabolites, substantial environmental progress associated with this method. The aim study was develop sufficient protocol successful Urena lobata hairy root induction by Agrobacterium rhizogenes ATCC 15834, using precursor elicitor enhance α-glucosidase inhibitory activity (GIA) aeroponic roots (AHRs) in greenhouse conditions. In study, we found...

Abstract Manganese (Mn), iron (Fe), and zinc (Zn) are essential for diverse processes in plants, but their availability is often limiting or excessive. Cation diffusion facilitator (CDF) proteins have been implicated the allocation of those metals whereby most our mechanistic understanding has obtained Arabidopsis. It unclear to what extent this can be generalized other dicots. We characterized all CDFs/metal tolerance sugar beet ( Beta vulgaris spp. ), which phylogenetically distant from...

Dendrobium is one of the largest and most important orchid genera because their ornamental commercial value. Plant tissue culture an established method for effective micropropagation valuable plants. In this study, caesar keikis were sterilized with sodium hypochlorite 2.5 % in 15 minutes. Effects 3 kinds cytokinin (TDZ, BA kinetin), adenine auxin (IAA, IBA, NAA) different concentrations on inducing shoots roots studied. The highest shoot initation was observed Knudson C (KC) medium...

Abutilon indicum L. belonging to Malvaceae is used as traditional medicinal herbs treat syphilis, hypoglycemia, hepatic disorders, and malaria... Because of the value A. indicum, aims this study are evaluation bioactivities production transformed hairy root for pharmaceutical production. In study, reducing power ethanol extract stem higher than that leave. The exhibited potent brine shrimp (Artemia salina) lethality with LC50 37.04 μg/mL. α-glucosidase acetylcholinesterase inhibitory...

Drosera burmanni Vahl, one of three species in Vietnam, has been successfully cultured vitro. Our previous researchs have shown that extracts Vahl contain bioactive compounds such as naphthoquinone, anthraquinone. To obtain cell biomass well increase secondary metabolites, callus and suspension culture become extremely urgent. Therefore, this study, we focused on building process to quinone. results show the most optimized medium for is Gamborg’s B5, saccharose 20g/l, casein 100 mg/l, PVP...

Plant growth promoting rhizobacteria (PGPR) are free-living soil bacteria (rhizosphere bacteria), rhizoplane or endophytic that may promote plant and suppress diseases. The aim of this study is to evaluate effects 2 strains belonging the genus Pseudomonas isolated from maize rhizosphere on promotion. in vitro tests showed both strain could fix nitrogen, solubilize phosphate, produced phytohormones (IAA GAs), improved germination Arabidopsis thaliana. Under greenhouse condition, parameters...

Extracts from Drosera species have been published as therapeutics, especially antioxidants. In this research, quercetin was screened and isolated for antioxidant properties D. indica L. in vitro plantlets. Its structure has elucidated on the basic of its spectral data mainly, 1H-, 13C-NMR, DEPT COSY, HSQC, HMBC. HPLC also applied quantitative analysis quercetin.

As soil salinization is a major concern of modern agriculture and an expected threat in climate change scenarios, special effort will be required for maintaining crop production under salt stress. The use plant growth-promoting rhizobacteria (PGPR) promising agricultural practice to help less tolerant crops maintain acceptable level productivity higher concentrations. Here, we have isolated the PGPR from rhizosphere Can Gio Mangrove Forest, Vietnam. Fifteen isolates bacteria were...

The application of plant growth-promoting rhizobacteria (PGPR) is one the most promising alternative approaches to improve growth under salt stress. Among PGPR, Pseudomonas a bacterial genus that possesses variety mechanisms for plant-growth-promoting and induction biotic as well abiotic stress tolerance. In this study, we screened three potential strains tested promotion peanut (Arachis hypogaea) saline conditions. All isolates (strains) showed in vitro promoting traits such production...