Citrus Rhizosphere Microbiome

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Fruit Production Systems".

Deadline for manuscript submissions: closed (30 December 2021) | Viewed by 5038

Special Issue Editor


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Guest Editor
College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
Interests: molecular basis of plant-arbuscular mycorrhizal fungi interaction; identification and functional analysis of citrus rhizosphere microbiome; acclimation mechanism of citrus plants to nutrient deficiency

Special Issue Information

Dear Colleagues,

Huge progress has been made in recent decades in the citrus research area, by using physiological, biochemical, genetic, and high-throughput “omics” technologies. Recently, scientists have come to realize that, besides the intrinsic genetic factors, surrounding factors, especially the rhizosphere microbiome (a microbe community), could also profoundly affect plant growth, development, and even fruit quality formation. Therefore, the microbiome is called “the second genome of an organism” regarding its important role in shaping phenotypes. In citrus, the role of arbuscular mycorrhizal fungi has been largely investigated, and attempted developments of fungi fertilizers have also been performed, though the unculturable character of mycorrhizal fungi makes the application difficult. Therefore, it is urgent and necessary to explore more beneficial microbes and study the activating mechanism, which should facilitate the research and application towards sustainable cultivation technologies in the citrus industry.

The proposed Special Issue titled “Citrus Rhizosphere Microbiome” aims to present recent advances in the identification and characterization of the role of citrus rhizosphere microbes in citrus plant growth, development, and fruit quality formation, as well as the associated biofertilizer innovation and application in citrus cultivation. We look forward to receiving your manuscripts and sharing the achievements at the cutting edge of citrus microbiome progress.

Dr. Zhiyong Pan
Guest Editor

Manuscript Submission Information

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Keywords

  • citrus
  • rhizosphere microbes
  • arbuscular mycorrhizal
  • plant growth
  • fruit quality
  • mineral nutrients
  • abiotic stress
  • disease
  • biofertilizer

Published Papers (1 paper)

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Research

11 pages, 2293 KiB  
Article
Microbiome and Metagenome Analysis Reveals Huanglongbing Affects the Abundance of Citrus Rhizosphere Bacteria Associated with Resistance and Energy Metabolism
by Hongfei Li, Fang Song, Xiaoxiao Wu, Chongling Deng, Qiang Xu, Shu’ang Peng and Zhiyong Pan
Horticulturae 2021, 7(6), 151; https://doi.org/10.3390/horticulturae7060151 - 13 Jun 2021
Cited by 6 | Viewed by 4222
Abstract
The plant rhizosphere microbiome is known to play a vital role in plant health by competing with pathogens or inducing plant resistance. This study aims to investigate rhizosphere microorganisms responsive to a devastating citrus disease caused by ‘Candidatus Liberibacter asiaticus’ (CLas) [...] Read more.
The plant rhizosphere microbiome is known to play a vital role in plant health by competing with pathogens or inducing plant resistance. This study aims to investigate rhizosphere microorganisms responsive to a devastating citrus disease caused by ‘Candidatus Liberibacter asiaticus’ (CLas) infection, by using 16S rRNA sequencing and metagenome technologies. The results show that 30 rhizosphere and 14 root bacterial genera were significantly affected by CLas infection, including 9 plant resistance-associated bacterial genera. Among these, Amycolatopsis, Sphingopyxis, Chryseobacterium, Flavobacterium, Ralstonia, Stenotrophomonas, Duganella, and Streptacidiphilus were considerably enriched in CLas-infected roots, while Rhizobium was significantly decreased. Metagenome analysis revealed that the abundance of genes involved in carbohydrate metabolism, such as glycolysis, starch and sucrose metabolism, amino sugar and nucleotide sugar metabolism, was significantly reduced in the CLas-infected citrus rhizosphere microbial community. Likewise, the abundance of genes involved in phosphoinositide signaling and phosphoinositide metabolism, which play important roles in energy metabolism (such as carbohydrate metabolism and lipid metabolism), was also decreased in the CLas-infected samples. Taken together, our results indicate that CLas infection could affect the resistance potential and energy metabolism of the citrus rhizosphere microbial community, which may help us to understand the rhizosphere responses to plant disease and thus facilitate the development and application of antagonistic microorganism products in citrus industry. Full article
(This article belongs to the Special Issue Citrus Rhizosphere Microbiome)
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