Belowground fungal volatiles perception in okra (Abelmoschus esculentus) facilitates plant growth under biotic stress

Singh, Jaya; Singh, Prachi; Vaishnav, Anukool; Ray, Shatrupa; Rajput, Rahul Singh; Singh, Shiv Mohan; Singh, Harikesh Bahadur

doi:10.1016/j.micres.2021.126721

Cited by 14 publications

(8 citation statements)

References 83 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar results were obtained by Guo et al [ 14 ], who compared T. hamatum with three other Trichoderma species. p -cymene is a monoterpene known for its antibacterial, antiviral and antifungal activities [ 77 ]. Characteristic of the Top 20 T. atroviride P1 VOCs was 6-pentyl-alpha-pyrone (6PP) ( m/z 167.099).…”

Section: Discussionmentioning

confidence: 99%

Volatile Organic Compound (VOC) Profiles of Different Trichoderma Species and Their Potential Application

Gualtieri

Monti

Mele

et al. 2022

JoF

View full text Add to dashboard Cite

Fungi emit a broad spectrum of volatile organic compounds (VOCs), sometimes producing species-specific volatile profiles. Volatilomes have received over the last decade increasing attention in ecological, environmental and agricultural studies due to their potential to be used in the biocontrol of plant pathogens and pests and as plant growth-promoting factors. In the present study, we characterised and compared the volatilomes from four different Trichoderma species: T. asperellum B6; T. atroviride P1; T. afroharzianum T22; and T. longibrachiatum MK1. VOCs were collected from each strain grown both on PDA and in soil and analysed using proton transfer reaction quadrupole interface time-of-flight mass spectrometry (PTR-Qi-TOF-MS). Analysis of the detected volatiles highlighted a clear separation of the volatilomes of all the four species grown on PDA whereas the volatilomes of the soil-grown fungi could be only partially separated. Moreover, a limited number of species-specific peaks were found and putatively identified. In particular, each of the four Trichoderma species over-emitted somevolatiles involved in resistance induction, promotion of plant seed germination and seedling development and antimicrobial activity, as 2-pentyl-furan, 6PP, acetophenone and p-cymene by T. asperellum B6, T. atroviride P1, T. afroharzianum T22 and T. longibrachiatum MK1, respectively. Their potential role in interspecific interactions from the perspective of biological control is briefly discussed.

show abstract

Section: Discussionmentioning

confidence: 99%

Volatile Organic Compound (VOC) Profiles of Different Trichoderma Species and Their Potential Application

Gualtieri

Monti

Mele

et al. 2022

JoF

View full text Add to dashboard Cite

show abstract

“…When plants are subjected to biotic stress, anti-disease substance accumulation occurs, and phytohormone-mediated signal pathway for disease resistance is triggered ( Li et al, 2016b ; Xia et al, 2019 ; Meng et al, 2020 ; Bordoloi et al, 2021 ). Many plant growth-promoting substances provide an alternative means to improve the utilization of agro-chemicals and enhance plant yield and quality ( Asai and Shirasu, 2015 ; Singh et al, 2021 ). Plant immune inducers from microbes, like ZNC, are a useful solution for improving crop quality and yield, and an alternative for the eco-friendly control of biotic stress to meet the needs of sustainable agricultural development.…”

Section: Discussionmentioning

confidence: 99%

Plant Endophytic Fungus Extract ZNC Improved Potato Immunity, Yield, and Quality

Cao

Liu

et al. 2021

Front. Plant Sci.

View full text Add to dashboard Cite

Endophytic fungi play an important role in plant survival and reproduction, but the role of their metabolites in plant growth and immunity, as well as in crop quality formation, is poorly understood. Zhinengcong (ZNC) is a crude ethanol extract from the endophytic fungus Paecilomyces variotii, and previous studies have shown that it can improve the growth and immunity in Arabidopsis thaliana. The aim of the study was to reveal the trade-off balance between plant growth and immunity by evaluating the mechanisms of ZNC on potato growth, yield, and priming immunity against the oomycete Phytophthora infestans indoors and in the field. ZNC maintained a good balance between plant growth and resistance against P. infestans with high activity. It induced the reactive oxygen species (ROS) production, promoted plant growth, yield and quality parameters, enhanced the expression of indoleacetic acid (IAA) related genes, and increased the absorption of nitrogen from the soil. Moreover, the plant endophytic fungus extract ZNC stimulated the pathogen-associated molecular pattern (PAMP) triggered immunity (PTI) pathway and contributed to the ZNC-mediated defense response. Two years of field trials have shown that irrigation with ZNC at one of two optimal concentrations of 1 or 10ng/ml could significantly increase the output by 18.83% or more. The quality of potato tubers was also greatly improved, in which the contents of vitamin C, protein, and starch were significantly increased, especially the sugar content was increased by 125%. Spray application of ZNC onto potato plants significantly reduced the occurrence of potato blight disease with 66.49% of control efficacy at 200ng/ml and increased the potato yield by 66.68% or more in the field. In summary, plant endophytic fungus extract ZNC promoted potato immunity, yield, and quality and presented excellent potential in agricultural applications.

show abstract

“…VOCs from T. viride BHU-V2 showed antagonistic activity against S. rolfsii , inhibiting the pathogen growth both in vitro and in soil experiments. It was determined that VOCs are capable of altering the structure of the pathogen hypha, thus limiting its growth [ 172 ]. Singh and collaborators [ 172 ] also showed that VOCs from T. viride increase PAL, PPO, chitinases, and β-1,3-glucanase activity in okra plants, inducing resistance and diminishing cell death caused by S. rolfsii .…”

Section: Biocontrol Potential Of Registered Trichoderma ...mentioning

confidence: 99%

Trichoderma Species: Our Best Fungal Allies in the Biocontrol of Plant Diseases—A Review

Guzmán-Guzmán

Kumar

Santos-Villalobos

et al. 2023

Plants

View full text Add to dashboard Cite

Biocontrol agents (BCA) have been an important tool in agriculture to prevent crop losses due to plant pathogens infections and to increase plant food production globally, diminishing the necessity for chemical pesticides and fertilizers and offering a more sustainable and environmentally friendly option. Fungi from the genus Trichoderma are among the most used and studied microorganisms as BCA due to the variety of biocontrol traits, such as parasitism, antibiosis, secondary metabolites (SM) production, and plant defense system induction. Several Trichoderma species are well-known mycoparasites. However, some of those species can antagonize other organisms such as nematodes and plant pests, making this fungus a very versatile BCA. Trichoderma has been used in agriculture as part of innovative bioformulations, either just Trichoderma species or in combination with other plant-beneficial microbes, such as plant growth-promoting bacteria (PGPB). Here, we review the most recent literature regarding the biocontrol studies about six of the most used Trichoderma species, T. atroviride, T. harzianum, T. asperellum, T. virens, T. longibrachiatum, and T. viride, highlighting their biocontrol traits and the use of these fungal genera in Trichoderma-based formulations to control or prevent plant diseases, and their importance as a substitute for chemical pesticides and fertilizers.

show abstract

Belowground fungal volatiles perception in okra (Abelmoschus esculentus) facilitates plant growth under biotic stress

Cited by 14 publications

References 83 publications

Volatile Organic Compound (VOC) Profiles of Different Trichoderma Species and Their Potential Application

Volatile Organic Compound (VOC) Profiles of Different Trichoderma Species and Their Potential Application

Plant Endophytic Fungus Extract ZNC Improved Potato Immunity, Yield, and Quality

Trichoderma Species: Our Best Fungal Allies in the Biocontrol of Plant Diseases—A Review

Contact Info

Product

Resources

About