Publications by authors named "Guixiang Peng"

Photocatalytic water decomposition using solar energy is one of the most effective hydrogen production technologies. The development of a structurally stable photocatalyst for hydrogen production without cocatalysts and photosensitizers remains a great challenge. In this paper, complex photocatalyst compounds and with different crystal structures were designed and obtained by connecting the 4'-(2,4-disulfophenyl)-4,2':6',4″-terpyridine organic ligands with Zn(Ac)·2HO and CdCO.

View Article and Find Full Text PDF

Introduction: Soil salinization poses a significant environmental challenge affecting plant growth and agricultural sustainability. This study explores the potential of salt-tolerant endophytes to mitigate the adverse effects of soil salinization, emphasizing their impact on the development and resistance of L. (peanuts).

View Article and Find Full Text PDF

is well known as a plant growth-promoting rhizobacteria (PGPR) and biocontrol agent. Nevertheless, there are very few reports on the study of on tomato early blight, especially the biocontrol effects among different inoculation concentrations. In this study, an IAA-producing strain, YXDHD1-7 was isolated from the tomato rhizosphere soil, which had the strongest inhibitory effect against .

View Article and Find Full Text PDF

Introduction: Endophytes and their host plants have co-evolved for a very long time. This relationship has led to the general recognition of endophytes as a particular class of microbial resources. 'Hongsen' is drought- and barren-resistant species that can be grown in both the north and south of China, efficiently addresses the ecological issues caused by China's 'southern eucalyptus and northern poplar.

View Article and Find Full Text PDF

A novel Gram-stain-negative, aerobic, rod-shaped and indole acetic acid-producing strain, designated 7209-2, was isolated from rhizosphere of rape ( L.) grown in the Yakeshi City, Inner Mongolia, PR China. The 16S rRNA gene sequence analysis indicated that strain 7209-2 belongs to the genus and is closely related to W3, shin9-1 and W44 with sequence similarities of 98.

View Article and Find Full Text PDF

Extensive exposure to antibiotics could potentially be harmful to the environment and human health. The development of effective and convenient technologies to remove residual antibiotics from water is imperative. Herein, we successfully developed a facile method via pyrolysis of Fe-MIL-88B_NH to synthesize magnetic nanocomposites (MNC) as potential adsorbents, which exhibited cluster-shape structure and excellent magnetic response.

View Article and Find Full Text PDF

A Gram-stain-negative, aerobic, nitrogen-fixing bacterium, designated strain L461, was isolated from leaves of Bryophyllum pinnatum growing at the South China Agricultural University. Phylogenetic analysis of the 16S rRNA gene sequence indicated it as a member of the genus Azotobacter closely related to Azotobacter beijerinckii JCM 20725 (97.82 % similarity) and Azotobacter chroococcum ATCC 9043 (97.

View Article and Find Full Text PDF

Three bacterial isolates, designated W44, W15 and W11, were isolated from the root of Oryza officinalis grown in Wuzhou, China. These isolates were Gram-negative, aerobic, motile and rod-shaped; demonstrated cellulase and urea activities; and formed cream-coloured colonies. The 16S rRNA gene sequence analysis indicated that the similarities between strain W44 and strains W15 and W11 were 100 %; all of them belonged to the genus Rhizobium and had the highest sequence similarity to Rhizobium rosettiformans W3 (98.

View Article and Find Full Text PDF

A nitrogen-fixing, endospore-forming bacterium, designated strain L201 was isolated from the leaves of Bryophyllum pinnatum growing in South China Agricultural University. Phylogenetic analysis of the 16S rRNA gene sequence indicated that strain L201 is affiliated with the genus Paenibacillus, and closely related to Paenibacillus albidus Q4-3 (97.4%), Paenibacillus odorifer DSM 15391 (97.

View Article and Find Full Text PDF

Strain Ola 51 (=LMG 24251 = CGMCC 1.7012) is the type strain of the species and was isolated from surface-sterilized roots of the wild rice species grown in Guangdong, China. Here we summarize the features of the strain Ola 51 and describe its complete genome sequence.

View Article and Find Full Text PDF

Thirty-three endophytic diazotrophs were isolated from surface-sterilized leaves, stem, and roots of wild rice Oryza alta. The SDS-PAGE profile of total protein and insertion sequence-based polymerase chain reaction (IS-PCR) fingerprinting grouped the isolates into four clusters (I-IV). The 16S rRNA gene sequence homology of the representative strains B21, B31, B1, and B23 of clusters I, II, III, and IV were assigned to Pseudomonas oleovorans (99.

View Article and Find Full Text PDF

Objective: Vetiver zizanioides is a perennial grass of the Poaceae family, known of its silage, soil and water conservation role. The aim of the study was to collect and identify the resources of the nitrogen-fixing bacteria associated with Vetiver zizanioides.

Methods: Associated nitrogen-fixing bacteria isolated from Vetiver zizanioides were studied by SDS-PAGE whole-cell protein patterns, insert sequence (IS)-PCR finger printing, utilization of sole carbon sources and 16S rRNA gene sequence analysis.

View Article and Find Full Text PDF

Twelve facultatively anaerobic, endophytic diazotrophs were isolated from surface-sterilized roots of the wild rice species Oryza latifolia and characterized by phenotypic and molecular methods. Six isolates were grouped together as group A by phenotypic characters, and this grouping was confirmed by SDS-PAGE whole-cell protein patterns and insertion sequence-based PCR (IS-PCR) methods. Phylogenetic analysis of the 16S rRNA gene sequence indicated that group A, represented by strain Ola 51(T), is closely related to Enterobacter radicincitans D5/23(T) (98.

View Article and Find Full Text PDF

During a study of endophytic nitrogen-fixing bacteria present in the wild rice species Oryza alta, eight novel isolates were obtained from surface-sterilized roots and classified in the genus Rhizobium on the basis of almost-complete 16S rRNA gene sequence analysis. These strains can nodulate Phaseolus vulgaris and Glycine max. The highly similar protein patterns, DNA fingerprint patterns of insertion sequence-based PCR (IS-PCR) and DNA-DNA hybridizations showed that these novel isolates were members of the same species.

View Article and Find Full Text PDF

Objective: To study the epidemic situation and dominant strain of influenza in children with acute respiratory infection (ARI) during Flu season from Oct. 2005 to Mar. 2006 in Taiyuan.

View Article and Find Full Text PDF

Fifteen bacterial strains isolated from molasses grass (Melinis minutiflora Beauv.) were identified as nitrogen-fixers by using the acetylene-reduction assay and PCR amplification of nifH gene fragments. These strains were classified as a unique group by insertion sequence-PCR fingerprinting, SDS-PAGE protein patterns, DNA-DNA hybridization, 16S rRNA gene sequencing and morphological characterization.

View Article and Find Full Text PDF