Endangerment of Ostrya rehderiana Chun and its relationship with rhizosphere soil microflora

Abstract

Ostrya rehderiana Chun (Or) is an endangered plant in China. The rhizosphere microbial community is one of the key factors influencing the growth and development of plants. Soil samples in the rhizosphere of wild Or (W_Or), cultivated Or (C_Or) and the predominant plant species Cryptomeria fortunei Hooibrenk ex Otto et Diet (CfH) all growing in the same habitat were investigated. We performed polymerase chain reaction (PCR) in 16S rDNA region for bacteria and internal transcribed spacer (ITS) rDNA regions for fungi in the rhizosphere. At genus level the predominant bacteria in the rhizosphere of both W_Or and CfH were higher, and the species distribution profiles exhibited higher similarities. The distribution profiles of fungal species at the genus level in the rhizosphere of W_Or and C_Or also exhibited higher similarities. The similarity in bacterial diversity at the genus levels between W_Or and C_Or exhibited higher similarities, whereas that of fungal diversity at the genus levels between W_Or and CfH exhibited higher similarities. There existed Rhizophlyctis and Termitomyces species capable of degrading cellulose and lignin in the rhizosphere of both W_Or and C_Or. These species may affect the normal formation of the cell wall of Or. Bacterial species Mycena were capable of enhancing the growth of plant root system, Suillus, Geomyces, Gigaspora and Phlebia were capable of degrading many types of wastes were only present in CfH. The absence of these beneficial strains in both W_Or and C_Or may be one of the causes of the growth and development retardation of Or.

Facilitating Growth of Maize (Zea mays L.) by Biostimulants: A Perspective from the Interaction between Root Transcriptome and Rhizosphere Microbiome

“…As reported previously, the lignin content is higher in the root than in stems and leaves and increases with maize growth . Moreover, it is the primary contributor to soil lignin, and some species of fungi can degrade lignin; also, some bacteria have a similar effect but are not yet elucidated . Supposedly, the growth-promoting effect of the biostimulant in our study is partially dependent on phenylpropanoid biosynthesis and subsequent lignin production.…”

Agriculture, biology, and environment: Twenty first century challenges and opportunities

“…Tong et al. (2020) studied the relationships between the endangered Ostrya rehderiana Chun and the soil rhizosphere microflora and found that the absence of some essential strains cause the retardation of growth and development of the species. Biomass dynamics with succession in the tropical broad‐leaf evergreen forests was studied by Zeng et al.…”

“…Wei et al (2020) studied the soil respiration using four cultivars of Stylo-grass [Stylosanthes guianensis (Aubl.) Sw.] and identifies the main limiting factor for soil health is soil respiration.Jiang, Jin et al (2020) discussed techniques that increase breeding efficiency of maize (Zea mays L.) Tong et al (2020). studied the relationships between the endangered Ostrya rehderiana Chun and the soil rhizosphere microflora and found that the absence of some essential strains cause the retardation of growth and development of the species.…”

Characterising the Intestinal Bacterial and Fungal Microbiome Associated With Different Cytokine Profiles in Two Bifidobacterium strains Pre-Treated Rats With D-Galactosamine-Induced Liver Injury

“…Some alternative fungi were also closely associated with CP2_LI09 cohort, e.g., Sporobolomyces and Fusicolla . Sporobolomyces could accumulate beneficial metabolites ( 46 ), while Fusicolla was found as a fungus of soil origin ( 47 ).…”