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Wang Z, Wang L, Liang X, Zhang G, Li Z, Yang Z, Zhan F. The coexistence of arbuscular mycorrhizal fungi and dark septate endophytes synergistically enhanced the cadmium tolerance of maize. FRONTIERS IN PLANT SCIENCE 2024; 15:1349202. [PMID: 38855464 PMCID: PMC11157013 DOI: 10.3389/fpls.2024.1349202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 04/29/2024] [Indexed: 06/11/2024]
Abstract
Introduction Arbuscular mycorrhizal fungi (AMF) and dark septate endophytic fungi (DSEs) generally coexist in the roots of plants. However, our understanding of the effects of their coexistence on plant growth and stress resistance is limited. Methods In the present study, the effects of single and dual inoculation of AMF and DSE on the growth, photosynthetic physiology, glutathione (GSH) metabolism, endogenous hormones, and cadmium (Cd) content of maize under 25 mg•kg-1 Cd stress were investigated. Results Compared with that after the non-inoculation treatment, AMF+DSE co-inoculation significantly increased the photosynthetic rate (Pn) of maize leaves; promoted root GSH metabolism; increased the root GSH concentration and activity of γ-glutamyl cysteine synthase (γ-GCS), ATP sulfatase (ATPS) and sulfite reductase (SIR) by 215%, 117%, 50%, and 36%, respectively; and increased the concentration of endogenous hormones in roots, with increases in zeatin (ZR), indole-3 acetic acid (IAA), and abscisic acid (ABA) by 81%, 209%, and 72%, respectively. AMF inoculation, DSE inoculation and AMF+DSE co-inoculation significantly increased maize biomass, and single inoculation with AMF or DSE increased the Cd concentration in roots by 104% or 120%, respectively. Moreover, significant or highly significant positive correlations were observed between the contents of ZR, IAA, and ABA and the activities of γ-GCS, ATPS, and SIR and the glutathione (GSH) content. There were significant or highly significant positive interactions between AMF and DSE on the Pn of leaves, root GSH metabolism, and endogenous hormone contents according to two-way analysis of variance. Therefore, the coexistence of AMF and DSE synergistically enhanced the Cd tolerance of maize.
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Affiliation(s)
- Zhaodi Wang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Lei Wang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Xinran Liang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Guangqun Zhang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Zuran Li
- College of Landscape and Horticulture, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Zhixin Yang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan, China
| | - Fangdong Zhan
- College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan, China
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Gebreslassie S, Jida M, Puente ML, Covacevich F, Belay Z. Inoculation of Native Arbuscular Mycorrhizae and Bacillus subtilis Can Improve Growth in Vegetable Crops. Int J Microbiol 2024; 2024:9226715. [PMID: 38745889 PMCID: PMC11093691 DOI: 10.1155/2024/9226715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 05/16/2024] Open
Abstract
Arbuscular mycorrhizal fungi (AMF) and some rhizobacteria are known as plant growth-promoting microorganism (PGPM) as they play significant roles in improving soil fertility structure, plant nutrition, growth, and health. However, little is known about the PGPM potential of AMF and rhizobacteria native to the Rift Valley and highland regions of Ethiopia. Hence, this study aimed to investigate the PGPM effect of single and co-inoculation of AMF and the Bacillus subtilis ALCR46 strain, on tomato (Lycopersicum esculentum L.), onion (Allium cepa L.), and squash (Cucurbita pepo L.) plants. The experimental setup was a randomized complete block design with three replications of the following treatments: (i) inoculation with a consortium of AMF, (ii) co-inoculation with a consortium of AMF and the Bacillus subtilis, (iii) inoculation with Rhizophagus clarus, (iv) co-inoculation with R. clarus and B. subtilis, (v) inoculation with B. subtilis, (vi) plants without inoculation (negative control), and (vii) plants treated with chemical fertilizer (positive control). Plants were maintained in a greenhouse for 60 days, and after harvest, plant growth parameters, percentage of AMF root colonization, and spore number were analyzed. The result shows that the growth of crops significantly increased by co-inoculation with the consortium of AMF and B. subtilis. AMF spore density and root colonization rate were also increased in co-inoculated plants. Highest root colonization, spore number, and mycorrhizal dependency were observed in A. cepa. Our results suggest that there is a synergistic effect between the AMF and B. subtilis ALCR46, and between AMF inoculants. However, the application of present findings under field conditions is required to be confirmed by further studies.
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Affiliation(s)
- Sara Gebreslassie
- Department of Applied Biology, Adama Science and Technology University, Adama, Ethiopia
| | - Mulissa Jida
- Bio and Emerging Technology Institute, Ras Biru Street, Near TemenJa Yaj, Addis Ababa, Ethiopia
| | - Mariana Laura Puente
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Microbiología y Zoología Agrícola, Buenos Aires, Argentina
| | - Fernanda Covacevich
- Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones en Biodiversidad y Biotecnología, Mar del Plata, Argentina
| | - Zerihun Belay
- Department of Applied Biology, Adama Science and Technology University, Adama, Ethiopia
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Nacoon S, Seemakram W, Gateta T, Theerakulpisut P, Sanitchon J, Kuyper TW, Boonlue S. Accumulation of Health-Promoting Compounds in Upland Black Rice by Interacting Mycorrhizal and Endophytic Fungi. J Fungi (Basel) 2023; 9:1152. [PMID: 38132753 PMCID: PMC10744396 DOI: 10.3390/jof9121152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/13/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023] Open
Abstract
There is an increasing interest in finding eco-friendly and safe approaches to increase agricultural productivity and deliver healthy foods. Arbuscular mycorrhizal fungi (AMF) and endophytic fungi (EPF) are important components of sustainable agriculture in view of their ability to increase productivity and various plant secondary metabolites with health-promoting effects. In a pot experiment, our main research question was to evaluate the additive and synergistic effects of an AMF and four root-endophytic fungi on plant performance and on the accumulation of health-promoting secondary compounds. Plant growth varied between the treatments with both single inoculants and co-inoculation of an AMF and four EPF strains. We found that inoculation with a single EPF positively affected the growth and biomass production of most of the plant-endophyte consortia examined. The introduction of AMF into this experiment (dual inoculation) had a beneficial effect on plant growth and yield. AMF, Rhizophagus variabilis KS-02 co-inoculated with EPF, Trichoderma zelobreve PBMP16 increased the highest biomass, exceeding the growth rate of non-inoculated plants. Co-inoculated R. variabilis KS-02 and T. zelobreve PBMP16 had significantly greater beneficial effects on almost all aspects of plant growth, photosynthesis-related parameters, and yield. It also promoted root growth quality and plant nutrient uptake. The phenolic compounds, anthocyanin, and antioxidant capacity in rice seeds harvested from plants co-inoculated with AMF and EPF were dramatically increased compared with those from non-inoculated plants. In conclusion, our results indicated that EPF and AMF contributed to symbiosis in Maled Phai cultivar and were coordinately involved in promoting plant growth performance under a pot trial.
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Affiliation(s)
- Sabaiporn Nacoon
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.N.); (W.S.); (T.G.)
| | - Wasan Seemakram
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.N.); (W.S.); (T.G.)
| | - Thanawan Gateta
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.N.); (W.S.); (T.G.)
| | - Piyada Theerakulpisut
- Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;
- Salt-Tolerant Rice Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Jirawat Sanitchon
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Thomas W. Kuyper
- Soil Biology Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands;
| | - Sophon Boonlue
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (S.N.); (W.S.); (T.G.)
- Salt-Tolerant Rice Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
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Gateta T, Nacoon S, Seemakram W, Ekprasert J, Theerakulpisut P, Sanitchon J, Suwannarach N, Boonlue S. The Potential of Endophytic Fungi for Enhancing the Growth and Accumulation of Phenolic Compounds and Anthocyanin in Maled Phai Rice ( Oryza sativa L.). J Fungi (Basel) 2023; 9:937. [PMID: 37755044 PMCID: PMC10532753 DOI: 10.3390/jof9090937] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/11/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023] Open
Abstract
Rice (Oryza sativa L.) is one of the most popular cereal crops, being consumed by almost half of the world's population. Among several cultivars widely distributed in Thailand, Maled Phai is a Thai pigmented-upland rice with exceptionally high nutritional value and high demand in the local Thai market. This study aimed to investigate the feasibility of producing plant growth-promoting properties (PGP) and enhancing the accumulation of phytochemicals in Maled Phai rice seeds of endophytic fungi isolated from upland black rice. Among a total of 56 isolates, the 4 most effective PGP isolates were identified as Trichoderma zelobreve PBMP16, Talaromyces pinophilus PBMP28, Aspergillus flavus KKMP34, and Trichoderma sp. PBMP4 based on their morphological characteristics and multigene (ITS, rpb2, tef-1, CaM, and BenA) phylogenetic analyses. These four endophytic fungi could promote plant growth parameters under greenhouse conditions. Outstandingly, upland rice inoculated with Tr. zelobreve PBMP16 had a significant increase in total seed weight, root length, phenolic compounds, anthocyanin, antioxidants, and N uptake, which were higher than those of the noninoculated control, and even better than the chemical fertilizer. Overall, this report shows that endophytic fungi efficiently promoted growth and increased the phenolic compounds, anthocyanin, and antioxidants of Maled Phai rice.
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Affiliation(s)
- Thanawan Gateta
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (T.G.); (S.N.); (W.S.); (J.E.)
| | - Sabaiporn Nacoon
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (T.G.); (S.N.); (W.S.); (J.E.)
| | - Wasan Seemakram
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (T.G.); (S.N.); (W.S.); (J.E.)
| | - Jindarat Ekprasert
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (T.G.); (S.N.); (W.S.); (J.E.)
| | - Piyada Theerakulpisut
- Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand;
- Salt-Tolerant Rice Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Jirawat Sanitchon
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand;
| | - Nakarin Suwannarach
- Center of Excellence in Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Sophon Boonlue
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; (T.G.); (S.N.); (W.S.); (J.E.)
- Salt-Tolerant Rice Research Group, Khon Kaen University, Khon Kaen 40002, Thailand
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Sharma I, Raina A, Choudhary M, Apra, Kaul S, Dhar MK. Fungal endophyte bioinoculants as a green alternative towards sustainable agriculture. Heliyon 2023; 9:e19487. [PMID: 37662754 PMCID: PMC10472071 DOI: 10.1016/j.heliyon.2023.e19487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 08/14/2023] [Accepted: 08/24/2023] [Indexed: 09/05/2023] Open
Abstract
Over the past half century, limited use of synthetic fertilizers, pesticides, and conservation of the environment and natural resources have become the interdependent goals of sustainable agriculture. These practices support agriculture sustainability with less environmental and climatic impacts. Therefore, there is an upsurge in the need to introduce compatible booster methods for maximizing net production. The best straightforward strategy is to explore and utilize plant-associated beneficial microorganisms and their products. Bioinoculants are bioformulations consisting of selected microbial strains on a suitable carrier used in the enhancement of crop production. Fungal endophytes used as bioinoculants confer various benefits to the host, such as protection against pathogens by eliciting immune response, mineralization of essential nutrients, and promoting plant growth. Besides, they also produce various bioactive metabolites, phytohormones, and volatile organic compounds. To design various bioformulations, transdisciplinary approaches like genomics, transcriptomics, metabolomics, proteomics, and microbiome modulation strategies like gene editing and metabolic reconstruction have been explored. These studies will refine the existing knowledge on the diversity, phylogeny and beneficial traits of the microbes. This will also help in synthesizing microbial consortia by evaluating the role of structural and functional elements of communities in a controlled manner. The present review summarizes the beneficial aspects associated with fungal endophytes for capitalizing agricultural outputs, enlists various multi-omics techniques for understanding and modulating the mechanism involved in endophytism and the generation of new bioformulations for providing novel solutions for the enhancement of crop production.
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Affiliation(s)
- Itika Sharma
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Ashish Raina
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Malvi Choudhary
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Apra
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Sanjana Kaul
- Fungal Biotechnology Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
| | - Manoj K. Dhar
- Plant Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu, Jammu and Kashmir, 180006, India
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Nacoon S, Seemakram W, Ekprasert J, Jogloy S, Kuyper TW, Mongkolthanaruk W, Riddech N, Somdee T, Boonlue S. Promoting growth and production of sunchoke ( Helianthus tuberosus) by co-inoculation with phosphate solubilizing bacteria and arbuscular mycorrhizal fungi under drought. FRONTIERS IN PLANT SCIENCE 2022; 13:1022319. [PMID: 36388606 PMCID: PMC9660246 DOI: 10.3389/fpls.2022.1022319] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 10/10/2022] [Indexed: 06/04/2023]
Abstract
Due to different functions of phosphate solubilizing bacteria (PSB) and arbuscular mycorrhizal fungi (AMF), their potential synergistic effects on enhancing plant growth and yield are worth investigating, especially under adverse conditions. This work focused on the isolation of PSB and characterization for their plant growth promoting properties under drought. The most efficient P solubilizing bacterium was isolated and identified as Burkholderia vietnamiensis strain KKUT8-1. Then, a factorial experiment on the performance of sunchoke (Helianthus tuberosus) was set up with four factors, viz., PSB (presence or absence of KKUT8-1), AMF (presence or absence of Rhizophagus aggregatus), rock phosphate (RP; added or not) and moisture (well-watered (WW) or drought (DS) conditions). Sunchoke performance was enhanced by the presence of AMF, whereas addition of PSB had a positive effect on SPAD values and inulin concentration. Drought reduced plant performance, while addition of RP reduced photosynthetic rate. There was little evidence for synergistic effects between PSB and AMF, except for SPAD values and inulin concentration. Plants that were co-inoculated with AMF and PSB had highest SPAD value, shoot diameter, leaf area, leaf number, chlorophyll concentration, plant biomass, tuber production, root growth and total soluble sugar concentration. Co-inoculated plants also had increased plant water status, reduced electrolyte leakage, and reduced malondialdehyde and proline concentration. Strain KKUT8-1 is the first strain of B. vietnamiensis capable of promoting growth and yield of sunchoke. Enhanced production of sunchoke by a combination of AMF and PSB was much better than the application of RP. Our finding offers an opportunity to develop combinations of biological inoculants for increasing the growth and production of sunchoke under drought in the future.
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Affiliation(s)
- Sabaiporn Nacoon
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Wasan Seemakram
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Jindarat Ekprasert
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Sanun Jogloy
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Thomas W. Kuyper
- Soil Biology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Wiyada Mongkolthanaruk
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Nuntavun Riddech
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Theerasak Somdee
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Sophon Boonlue
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
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Li Z, Wen W, Qin M, He Y, Xu D, Li L. Biosynthetic Mechanisms of Secondary Metabolites Promoted by the Interaction Between Endophytes and Plant Hosts. Front Microbiol 2022; 13:928967. [PMID: 35898919 PMCID: PMC9309545 DOI: 10.3389/fmicb.2022.928967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/21/2022] [Indexed: 12/28/2022] Open
Abstract
Endophytes is a kind of microorganism resource with great potential medicinal value. The interactions between endophytes and host not only promote the growth and development of each other but also drive the biosynthesis of many new medicinal active substances. In this review, we summarized recent reports related to the interactions between endophytes and hosts, mainly regarding the research progress of endophytes affecting the growth and development of host plants, physiological stress and the synthesis of new compounds. Then, we also discussed the positive effects of multiomics analysis on the interactions between endophytes and their hosts, as well as the application and development prospects of metabolites synthesized by symbiotic interactions. This review may provide a reference for the further development and utilization of endophytes and the study of their interactions with their hosts.
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Affiliation(s)
- Zhaogao Li
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Weie Wen
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Ming Qin
- Department of Immunology, Zunyi Medical University, Zunyi, China
| | - Yuqi He
- Engineering Research Center of Key Technology Development for Gui Zhou Provincial Dendrobium Nobile Industry, Zunyi Medical University, Zunyi, China
- *Correspondence: Yuqi He,
| | - Delin Xu
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
- Delin Xu,
| | - Lin Li
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
- Lin Li,
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Wang L, Chen X, Du Y, Zhang D, Tang Z. Nutrients Regulate the Effects of Arbuscular Mycorrhizal Fungi on the Growth and Reproduction of Cherry Tomato. Front Microbiol 2022; 13:843010. [PMID: 35464967 PMCID: PMC9024412 DOI: 10.3389/fmicb.2022.843010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/09/2022] [Indexed: 12/16/2022] Open
Abstract
Arbuscular mycorrhizal fungi (AMF) colonize the rhizosphere of plants and form a symbiotic association with plants. Mycorrhizal symbionts have diversified ecological roles and functions which are affected by soil conditions. Understanding the effects of different AMF inoculation on plants under varied nutritional conditions is of great significance for further understanding the effects of the external environment regulating mycorrhizal symbiosis on plant phenotypic traits. In this study, the effects of four AMF inoculation treatments on the growth and reproductive performance of cherry tomato (Solanum lycopersicum var. cerasiforme) were investigated under three nutrient levels by pot experiment. It was found that the growth-promoting effect of AMF on cherry tomato decreased with nutrient reduction, and the effects of the same AMF inoculation treatment on cherry tomato were different at different nutrient levels. Nutrient levels and AMF had interactive effects on flower characteristics, fruit yield, resource allocation, and seed germination of the cherry tomato. In addition, AMF could promote sexual reproductive investment. Nutrient levels and AMF also affected the accumulation of nitrogen and phosphorus in cherry tomato, and there were significant differences among different AMF inoculation treatments. The results indicated that nutrient differences could affect the symbiosis between AMF and plants, and confirmed that there were differences in the effects of the four AMF inoculation treatments on the growth and reproductive traits of plants. The differences in growth and reproduction characteristics of cherry tomato between different AMF inoculation treatments at different nutrient levels indicated that the effects of AMF mycorrhizal on the traits of cherry tomato were regulated by nutrients.
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