Mechanisms and Applications of Plant-Microbe Interactions

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Plant Science".

Deadline for manuscript submissions: closed (15 July 2022) | Viewed by 2916

Special Issue Editors

College of JunCao Science and Ecology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Interests: plant microbiome; replant disease; plant-soil feedback; rhizosphere ecology; bioinformatics
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Guest Editor
College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
Interests: soil microbiome; soil health; plant rhizosphere; microbial ecology
School of pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China
Interests: medicinal plants; replanting problems; plant metabolomics; soil ecology

Special Issue Information

Dear Colleagues,

Microbes occur nearly everywhere in nature and are fundamental to the existence and maintenance of life on Earth. It has become acknowledged that microbes can colonize the internal tissues and external surfaces of plants, as well as the surrounding soil. These plant- or soil-associated microbes comprise the plant microbiome. The plant microbiome, serving as the second genome of the plant, plays key roles in determining plant health and soil quality. Plant–microbe interactions have received substantial attention in recent years. Today, we know that plants can shape their root-associated microbiome by activating the secretion of metabolites that specifically stimulate or inhibit different community members. In turn, the root-associated microbiome can influence plant performance and fitness by modulating plant growth, nutrient uptake, and biotic stress tolerance. Moreover, the phyllosphere microbiome interacts with the host plant and determines plant health and responses to changing environmental factors.

The topics of this Special Issue include (but are not limited to) (1) the assembly, structure, function and dynamics of the root-associated microbiomes; (2) the roles of root exudates in plant–microbe interactions and plant–soil feedback; (3) rhizosphere engineering and management for improving soil nutrient availability, soil health and crop productivity; (4) the phyllosphere microbiome and its association with plant health and fitness; (5) new approaches to study the plant microbiome.

This Special Issue welcomes submissions of both original research and review articles dealing with the mechanism and application of plant–microbe interactions.

Dr. Linkun Wu
Prof. Dr. Xiaogang Li
Dr. Bao Zhang
Guest Editors

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  •  plant microbiome
  •  root-associated microbial community
  •  phyllosphere microbiome
  •  plant-microbe interaction
  •  root exudates
  •  soil health
  •  rhizosphere engineering and management

Published Papers (1 paper)

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20 pages, 7976 KiB  
Screening of Bioactive Compounds from Endophytic Marine-Derived Fungi in Saudi Arabia: Antimicrobial and Anticancer Potential
by Aisha M. H. Al-Rajhi, Abdullah Mashraqi, Mohamed A. Al Abboud, Abdel-Rahman M. Shater, Soad K. Al Jaouni, Samy Selim and Tarek M. Abdelghany
Life 2022, 12(8), 1182; - 3 Aug 2022
Cited by 8 | Viewed by 2563
Nowadays, endophytic fungi represent a rich source of biological active compounds. In the current study, twelve endophytic fungal species were isolated from Avicennia marina leaves. From the isolates, Aspergillus niger, Penicillium rubens and Alternaria alternata recorded the highest isolation frequency (80%), relative [...] Read more.
Nowadays, endophytic fungi represent a rich source of biological active compounds. In the current study, twelve endophytic fungal species were isolated from Avicennia marina leaves. From the isolates, Aspergillus niger, Penicillium rubens and Alternaria alternata recorded the highest isolation frequency (80%), relative density (12.5%) and antimicrobial activity. The antimicrobial and anticancer activities of P. rubens were more effective than those of A. niger and A. alternata; therefore, its identification was confirmed via the ITS rRNA gene. Filtrate extracts of P. rubens, A. alternata and A. niger were analyzed using GC-MS and showed different detected constituents, such as acetic acid ethyl ester, N-(4,6-Dimethyl-2-pyrimidinyl)-4-(4-nitrobenzylideneamino) benzenesulfonamide, 1,2-benzenedicarboxylic acid, hexadecanoic acid and octadecanoic acid. Filtrate extract of P. rubens exhibited the presence of more compounds than A. alternata and A. niger. Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Candida albicans and Aspergillus fumigatus were more inhibited by P. rubens extract than A. alternata or A. niger, with inhibition zones of 27.2 mm, 22.21 mm, 26.26 mm, 27.33 mm, 28.25 mm and 8.5 mm, respectively. We observed negligible cytotoxicity of P. rubens extract against normal cells of human lung fibroblasts (WI-38 cell line), unlike A. alternata and A. niger extracts. Proliferation of prostate cancer (PC-3) was inhibited using P. rubens extract, exhibiting mortality levels of 75.91% and 76.2% at 200 µg/mL and 400 µg/mL of the extract. Molecular docking studies against the crystal structures of C. albicans (6TZ6) and the cryo-EM structure of B. subtilis (7CKQ) showed significant interactions with benzenedicarboxylic acid and N-(4,6-dimethyl-2-pyrimidinyl)-4-(4-nitrobenzylideneamino) benzenesulfonamide as a constituent of P. rubens extract. N-(4,6-dimethyl-2-pyrimidinyl)-4-(4-nitrobenzylideneamino) benzenesulfonamide had the highest scores of −6.04905 kcal/mol and −6.590 kcal/mol towards (6tz6) and (7CKQ), respectively. Full article
(This article belongs to the Special Issue Mechanisms and Applications of Plant-Microbe Interactions)
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