Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: UNIPROT:P30536 (
PBS
)
9,886
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Zinc is an imperative micronutrient required for optimum plant growth. Zinc solubilizing bacteria are potential alternatives for zinc supplementation and convert applied inorganic zinc to available forms. This study was conducted to screen zinc solubilizing rhizobacteria isolated from wheat and sugarcane, and to analyze their effect on wheat growth and development. Fourteen exo-polysaccharides producing bacterial isolates of wheat were identified and characterized biochemically as well as on the basis of 16S rRNA gene sequences. Along these, 10 identified sugarcane isolates were also screened for zinc solubilizing ability on five different insoluble zinc sources. Out of 24, five strains, i.e.,
EPS
1 (
Pseudomonas fragi)
,
EPS
6 (
Pantoea dispersa)
,
EPS
13 (
Pantoea agglomerans)
,
PBS
2 (
E. cloacae)
and LHRW1 (
Rhizobium
sp.) were selected (based on their zinc solubilizing and PGP activities) for pot scale plant experiments. ZnCO
3
was used as zinc source and wheat seedlings were inoculated with these five strains, individually, to assess their effect on plant growth and development. The effect on plants was analyzed based on growth parameters and quantifying zinc content of shoot, root and grains using atomic absorption spectroscopy. Plant experiment was performed in two sets. For first set of plant experiments (harvested after 1 month), maximum shoot and root dry weights and shoot lengths were noted for the plants inoculated with
Rhizobium
sp. (LHRW1) while
E. cloacae
(
PBS
2) increased both shoot and root lengths. Highest zinc content was found in shoots of
E. cloacae
(
PBS
2) and in roots of
P. agglomerans
(
EPS
13) followed by zinc supplemented control. For second set of plant experiment, when plants were harvested after three months,
Pantoea dispersa
(
EPS
6),
P. agglomerans
(
EPS
13) and
E. cloacae
(
PBS
2) significantly increased shoot dry weights. However, significant increase in root dry weights and maximum zinc content was recorded for
Pseudomonas fragi
(
EPS
1) inoculated plants, isolated from wheat rhizosphere. While maximum zinc content for roots was quantified in the control plants indicating the plant's inability to transport zinc to grains, supporting accelerated bioavailability of zinc to plant grains with zinc solubilizing rhizobacteria.
...
PMID:Contribution of Zinc Solubilizing Bacteria in Growth Promotion and Zinc Content of Wheat. 2931 65
Simultaneous nitrification-denitrification (SND) was achieved in submerged biofilm membrane bioreactor (SBF-MBR) treating low carbon/nitrogen (C/N) ratio wastewater. A novel bio-carrier coupling of sponge and biodegradable poly(butanediol succinate) (
PBS
) was applied as external carbon source and biofilm carrier. Result represented that NH
4
+
-N and total nitrogen removal efficiencies were high of 99.1% and 94.3% in the SBF-MBR. Protein (PN) contents from SND-biofilm were reduced by 10.5% and 44.3% in TB-
EPS
and LB-
EPS
, while polysaccharides (PS) were reduced by 45.8% and 34.8%, respectively. 3D-EEM spectra indicated that protein-like, humic acid-like and fulvic acid-like substances were the main components in
EPS
and their peak intensities were reduced. Additionally, membrane fouling of SBF-MBR was improved after the achievement of biofilm. Microbial community analysis showed that Simplicispira, Thauera, Desulfovibrio, Dechlorobacter and Acinetobacter were dominant genus, which indicated co-existence of nitrifying bacteria, heterotrophic denitrifiers and aerobic denitrifiers in the SBF-MBR.
...
PMID:Simultaneous nitrification-denitrification and membrane fouling alleviation in a submerged biofilm membrane bioreactor with coupling of sponge and biodegradable PBS carrier. 3021 31
