Secondary Metabolites and Rhizosphere Microorganisms in Plants

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Phytochemistry".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 2878

Special Issue Editors

South China Botanical Garden, Chinese Academy of Sciences, 723 Xingke Road, Tianhe District, Guangzhou 510650, China
Interests: plant pigments; plant volatile; plant amino acids; tea plants

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Guest Editor
South China Botanical Garden, Chinese Academy of Sciences 723 Xingke Road, Tianhe District, Guangzhou 510650, China
Interests: plant–microbe interaction; legume–rhizobia symbiosis

Special Issue Information

Dear Colleagues,

Plant endophytes, rhizosphere microorganisms and plant hosts together constitute a complex dynamic microecosystem, and each perform many ecological or biological functions in the process of plant growth.

The types of rhizosphere microorganisms and endophytes are affected mainly by secondary metabolites secreted from plants. The interaction between secondary metabolites and rhizosphere microorganisms is crucial for plant development and quality formation. Organic acids, sugars, secondary metabolites and other substances secreted by plant roots can specifically promote the growth of beneficial microorganisms, while other secondary metabolites also inhibit the proliferation of pathogenic bacteria.

Rhizosphere microorganisms participate in plant development, metabolism and accumulation of active components in medicinal/horticultural plants. They also play an important role in nutrient absorption and utilization, as well as disease control and abiotic stress in crops.

Plant secondary metabolites, such as phenolics, terpenes, steroids, alkaloids, and flavonoids, play important roles in the defense against pathogens, pests, herbivores, and other environmental stimuli. Other secondary metabolites, such as VOCs and phytohormones that are exudates of roots, have each been reported to modulate microbiomes.

In addition, plant secondary metabolites such as resveratrol, flavonoids, polyphenols, and carotenoids, etc., are closely related to human health. Metabolites such as alkaloids, phenols, terpenoids, and flavonoids, etc., contribute to the quality and color of horticultural crops. In recent years, with the development of multi-omics technology, research on secondary plant metabolites has been more comprehensive.

This Special Issue of Plants will highlight the role of microorganisms and secondary metabolites in plant development and stress resistance.

Dr. Xiumin Fu
Dr. Yaping Chen
Guest Editors

Manuscript Submission Information

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Keywords

  • plant secondary metabolites
  • plant microbiomes
  • plant–microbe interactions
  • plant hormones

Published Papers (1 paper)

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Research

13 pages, 3294 KiB  
Article
Trichoderma hamatum Increases Productivity, Glucosinolate Content and Antioxidant Potential of Different Leafy Brassica Vegetables
by Pablo Velasco, Víctor Manuel Rodríguez, Pilar Soengas and Jorge Poveda
Plants 2021, 10(11), 2449; https://doi.org/10.3390/plants10112449 - 12 Nov 2021
Cited by 21 | Viewed by 2365
Abstract
Brassica crops include important vegetables known as “superfoods” due to the content of phytochemicals of great interest to human health, such as glucosinolates (GSLs) and antioxidant compounds. On the other hand, Trichoderma is a genus of filamentous fungi that includes several species described [...] Read more.
Brassica crops include important vegetables known as “superfoods” due to the content of phytochemicals of great interest to human health, such as glucosinolates (GSLs) and antioxidant compounds. On the other hand, Trichoderma is a genus of filamentous fungi that includes several species described as biostimulants and/or biological control agents in agriculture. In a previous work, an endophytic strain of Trichoderma hamatum was isolated from kale roots (Brassica oleracea var. acephala), describing its ability to induce systemic resistance in its host plant. In the present work, some of the main leafy Brassica crops (kale, cabbage, leaf rape and turnip greens) have been root-inoculated with T. hamatum, having the aim to verify the possible capacity of the fungus as a biostimulant in productivity as well as the foliar content of GSLs and its antioxidant potential, in order to improve these “superfoods”. The results reported, for the first time, an increase in the productivity of kale (55%), cabbage (36%) and turnip greens (46%) by T. hamatum root inoculation. Furthermore, fungal inoculation reported a significant increase in the content of total GSLs in cabbage and turnip greens, mainly of the GSLs sinigrin and gluconapin, respectively, along with an increase in their antioxidant capacity. Therefore, T. hamatum could be a good agricultural biostimulant in leafy Brassica crops, increasing the content of GSLs and antioxidant potential of great food and health interest. Full article
(This article belongs to the Special Issue Secondary Metabolites and Rhizosphere Microorganisms in Plants)
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