Effect of endophytic Bacillus megaterium colonization on structure strengthening, microbial community, chemical composition and stabilization properties of Hybrid Pennisetum

2019 ◽  
Vol 100 (3) ◽  
pp. 1164-1173 ◽  
Author(s):  
Assar A Shah ◽  
Zhiwei Liu ◽  
Chen Qian ◽  
Juanzi Wu ◽  
Xiaoxian Zhong ◽  
...  
Keyword(s):  
Microbial Community ◽  
Chemical Composition ◽  
Bacillus Megaterium ◽  
Hybrid Pennisetum

scholarly journals Effects of natamycin and Lactobacillus plantarum on the chemical composition, microbial community, and aerobic stability of Hybrid pennisetum at different temperatures

RSC Advances ◽  
2020 ◽  
Vol 10 (15) ◽  
pp. 8692-8702 ◽  
Author(s):  
Assar Ali Shah ◽  
Chen Qian ◽  
Juanzi Wu ◽  
Zhiwei Liu ◽  
Salman Khan ◽  
...  
Keyword(s):  
Microbial Community ◽  
Chemical Composition ◽  
Lactobacillus Plantarum ◽  
Aerobic Stability ◽  
Different Temperatures ◽  
Fermentation Quality ◽  
Hybrid Pennisetum

The inoculation of L. plantarum and natamycin influenced the fermentation quality. Natamycin and L. plantarum reduced the undesirable microbial community. During ensiling process, the LA and LABs was significantly enhanced.

scholarly journals Endophytic Bacillus megaterium BM18-2 mutated for cadmium accumulation and improving plant growth in Hybrid Pennisetum

2019 ◽  
Vol 24 ◽  
pp. e00374 ◽  
Author(s):  
Juanzi Wu ◽  
Nehal Kamal ◽  
Huanhuan Hao ◽  
Chen Qian ◽  
Zhiwei Liu ◽  
...  
Keyword(s):  
Plant Growth ◽  
Bacillus Megaterium ◽  
Cadmium Accumulation ◽  
Hybrid Pennisetum

scholarly journals Soil Organic Carbon Chemical Functional Groups under Different Revegetation Types Are Coupled with Changes in the Microbial Community Composition and the Functional Genes

Forests ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 240 ◽  
Author(s):  
Jiaojiao Deng ◽  
Wenxu Zhu ◽  
Yongbin Zhou ◽  
You Yin
Keyword(s):  
Microbial Community ◽  
Chemical Composition ◽  
Organic Carbon ◽  
Functional Groups ◽  
Soil Microbial Community ◽  
Coniferous Forests ◽  
Functional Genes ◽  
Broadleaf Forest ◽  
Soil Microbial ◽  
Molecular Compounds

Different revegetatiom types can affect the chemical composition of soil organic carbon (SOC), soil microbial community and the functional genes related to carbon cycle. However, the relationships between SOC chemical functional groups and soil microbial communities and the functional genes remains poorly unclear under different revegetation types. Using the solid-state 13C nuclear magnetic resonance (NMR) spectroscopy, we examined changes in the SOC chemical composition of five soils (0–10 cm depth) from Larix gmelinii Rupr. (LG), Pinus koraiensis Sieb. (PK), Quercus mongolica Fisch. (QM), Juglans mandshurica Maxim. (JM), and conifer-broadleaf forest (CB). And the soil microbial community genes related to metabolism of macro-molecular compounds were determined via whole genome shotgun based on Illumina HiSeq. Our results indicated that broadleaf forests (JM, QM) had increased the contents of soil total carbon (C), total nitrogen (N), dissolved organic carbon (DOC), and microbial biomass carbon (MBC), compared with coniferous forests (LG, PK) and the conifer-broadleaf forest (CB). While, the coniferous forests generated a lower O-alcoxyl C, a higher alkyl C, and the ratio of alkyl C/O-alkyl C than broadleaf forests. A total of four kingdoms were identified via whole metagenome shotgun sequencing, including eight archaea, 55 bacteria, 15 eukaryota, and two viruses, giving a total 80 phyla. The contents of alkyne C, phenolic C, methoxyl C, COO/NC=O, and alkyl C were strong related to the composition of soil microbial community and their contents illuminated a major part of the variation in soil microbial composition. We detected seven corresponding macro-molecular compounds of different organic carbon functional group, and 244 genes related to metabolism across all samples, and soil total C, total N, and DOC could be the main factors for microbial functional gene composition. Interestingly, the relative abundances of different SOC chemical functional groups, the phylogenetic distance for microbes, the genes of C cycling based on the KEGG database, and the relative abundance of genes related to metabolism of macro-molecular compounds of different SOC chemical functional groups under different revegetation types all could be divided into three groups, including PK plus LG, JM plus QM, and CB. Our results also illustrated that variations in SOC chemical functional groups were strongly associated with changes of soil microbial community taxa and functional genes, which might be affected by the changes of soil characteristics.

scholarly journals Marine Community Metabolomes Carry Fingerprints of Phytoplankton Community Composition

mSystems ◽  
2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Katherine R. Heal ◽  
Bryndan P. Durham ◽  
Angela K. Boysen ◽  
Laura T. Carlson ◽  
Wei Qin ◽  
...  
Keyword(s):  
Microbial Community ◽  
Chemical Composition ◽  
Microbial Communities ◽  
Community Composition ◽  
Inorganic Carbon ◽  
Phytoplankton Community ◽  
Phytoplankton Species ◽  
Surface Ocean ◽  
Marine Microbial Communities ◽  
Planktonic Communities

ABSTRACT Phytoplankton transform inorganic carbon into thousands of biomolecules that represent an important pool of fixed carbon, nitrogen, and sulfur in the surface ocean. Metabolite production differs between phytoplankton, and the flux of these molecules through the microbial food web depends on compound-specific bioavailability to members of a wider microbial community. Yet relatively little is known about the diversity or concentration of metabolites within marine plankton. Here, we compare 313 polar metabolites in 21 cultured phytoplankton species and in natural planktonic communities across environmental gradients to show that bulk community metabolomes reflect the chemical composition of the phytoplankton community. We also show that groups of compounds have similar patterns across space and taxonomy, suggesting that the concentrations of these compounds in the environment are controlled by similar sources and sinks. We quantify several compounds in the surface ocean that represent substantial understudied pools of labile carbon. For example, the N-containing metabolite homarine was up to 3% of particulate carbon and is produced in high concentrations by cultured Synechococcus, and S-containing gonyol accumulated up to 2.5 nM in surface particles and likely originates from dinoflagellates or haptophytes. Our results show that phytoplankton composition directly shapes the carbon composition of the surface ocean. Our findings suggest that in order to access these pools of bioavailable carbon, the wider microbial community must be adapted to phytoplankton community composition. IMPORTANCE Microscopic phytoplankton transform 100 million tons of inorganic carbon into thousands of different organic compounds each day. The structure of each chemical is critical to its biological and ecosystem function, yet the diversity of biomolecules produced by marine microbial communities remained mainly unexplored, especially small polar molecules which are often considered the currency of the microbial loop. Here, we explore the abundance and diversity of small biomolecules in planktonic communities across ecological gradients in the North Pacific and within 21 cultured phytoplankton species. Our work demonstrates that phytoplankton diversity is an important determinant of the chemical composition of the highly bioavailable pool of organic carbon in the ocean, and we highlight understudied yet abundant compounds in both the environment and cultured organisms. These findings add to understanding of how the chemical makeup of phytoplankton shapes marine microbial communities where the ability to sense and use biomolecules depends on the chemical structure.

scholarly journals Improving hybrid Pennisetum growth and cadmium phytoremediation potential by using Bacillus megaterium BM18-2 spores as biofertilizer

2021 ◽  
Vol 242 ◽  
pp. 126594
Author(s):  
Nehal Kamal ◽  
Zhiwei Liu ◽  
Chen Qian ◽  
Juanzi Wu ◽  
Xiaoxian Zhong
Keyword(s):  
Bacillus Megaterium ◽  
Hybrid Pennisetum
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