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Han S, Cheng Y, Wu G, He X, Zhao G. Enhancing Salt Tolerance in Poplar Seedlings through Arbuscular Mycorrhizal Fungi Symbiosis. PLANTS (BASEL, SWITZERLAND) 2024; 13:233. [PMID: 38256786 PMCID: PMC10820157 DOI: 10.3390/plants13020233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/23/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024]
Abstract
Poplar (Populus spp.) is a valuable tree species with multiple applications in afforestation. However, its growth in saline areas, including coastal regions, is limited. This study aimed to investigate the physiological mechanisms of arbuscular mycorrhizal fungi (AMF) symbiosis with 84K (P. alba × P. tremula var. glandulosa) poplar under salt stress. We conducted pot experiments using NaCl solutions of 0 mM (control), 100 mM (moderate stress), and 200 mM (severe stress) and evaluated the colonization of AMF and various physiological parameters of plants, including photosynthesis, biomass, antioxidant enzyme activity, nutrients, and ion concentration. Partial least squares path modeling (PLS-PM) was employed to elucidate how AMF can improve salt tolerance in poplar. The results demonstrated that AMF successfully colonized the roots of plants under salt stress, effectively alleviated water loss by increasing the transpiration rate, and significantly enhanced the biomass of poplar seedlings. Mycorrhiza reduced proline and malondialdehyde accumulation while enhancing the activity of antioxidant enzymes, thus improving plasma membrane stability. Additionally, AMF mitigated Na+ accumulation in plants, contributing to the maintenance of a favorable ion balance. These findings highlight the effectiveness of using suitable AMF to improve conditions for economically significant tree species in salt-affected areas, thereby promoting their utilization.
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Affiliation(s)
- Shuo Han
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (S.H.); (Y.C.); (G.W.)
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Beijing Forestry University, Beijing 100083, China
| | - Yao Cheng
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (S.H.); (Y.C.); (G.W.)
| | - Guanqi Wu
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (S.H.); (Y.C.); (G.W.)
| | - Xiangwei He
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (S.H.); (Y.C.); (G.W.)
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Beijing Forestry University, Beijing 100083, China
| | - Guozhu Zhao
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China; (S.H.); (Y.C.); (G.W.)
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Beijing Forestry University, Beijing 100083, China
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Yadav A, Batra D, Kaushik P, Mohanta TK. Abundance and distribution of arbuscular mycorrhizal fungi associated with oil-yielding plants. J Basic Microbiol 2023; 63:814-827. [PMID: 37010016 DOI: 10.1002/jobm.202300012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/01/2023] [Accepted: 03/12/2023] [Indexed: 04/04/2023]
Abstract
Due to their role in nutrient transmission, arbuscular mycorrhizal fungi (AMF) are widespread plant root symbionts. They may improve plant production by altering plant community structure and function. Therefore, a study was conducted in the state of Haryana to analyze the distribution pattern, diversity, and association of different AMF species with oil-yielding plants. The results of the study revealed the percentage of root colonization, sporulation, and diversity of fungal species associated with the selected 30 oil-yielding plants. The percentage root colonization ranged from 0% to 100%, the highest in Helianthus annuus (100.00 ± 0.00) and Zea mays (100.00 ± 0.00) and the least in Citrus aurantium (11.87 ± 1.43). At the same time, there was no root colonization in the Brassicaceae family. The number of AMF spores present in 50 g of soil samples varied from 17.41 ± 5.28 to 497.2 ± 8.38, with maximum spore population in Glycine max (497.2 ± 8.38) and minimum in Brassica napus (17.41 ± 5.28). Besides, the presence of several species of different genera of AMF was reported in all the studied oil-yielding plants, that is, 60 AMF belonging to six genera viz. Acaulospora, Entrophospora, Glomus, Gigaspora, Sclerocystis, and Scutellospora were observed. Overall, this study will promote AMF usage in oil-yielding plants.
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Affiliation(s)
- Alpa Yadav
- Department of Botany, Indra Gandhi University, Meerpur, Rewari, India
| | - Divya Batra
- Department of Botany, Kurukshetra University, Kurukshetra, India
| | - Prashant Kaushik
- Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain
| | - Tapan K Mohanta
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
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Hajiboland R, Panda CK, Lastochkina O, Gavassi MA, Habermann G, Pereira JF. Aluminum Toxicity in Plants: Present and Future. JOURNAL OF PLANT GROWTH REGULATION 2022. [DOI: 10.1007/s00344-022-10866-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 10/26/2022] [Indexed: 06/23/2023]
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Trinchera A, Migliore M, Warren Raffa D, Ommeslag S, Debode J, Shanmugam S, Dane S, Babry J, Kivijarvi P, Kristensen HL, Lepse L, Salo T, Campanelli G, Willekens K. Can multi-cropping affect soil microbial stoichiometry and functional diversity, decreasing potential soil-borne pathogens? A study on European organic vegetable cropping systems. FRONTIERS IN PLANT SCIENCE 2022; 13:952910. [PMID: 36237499 PMCID: PMC9552534 DOI: 10.3389/fpls.2022.952910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
Crop diversification in spatial and temporal patterns can optimize the synchronization of nutrients plant demand and availability in soils, as plant diversity and soil microbial communities are the main drivers of biogeochemical C and nutrient cycling. The introduction of multi-cropping in organic vegetable production can represent a key strategy to ensure efficient complementation mediated by soil microbiota, including beneficial mycorrhizal fungi. This study shows the effect of the introduction of multi-cropping in five European organic vegetable systems (South-West: Italy; North-West: Denmark and Belgium; North-East: Finland and Latvia) on: (i) soil physicochemical parameters; (ii) soil microbial biomass stoichiometry; (iii) crop root mycorrhization; (iv) bacterial and fungal diversity and composition in crop rhizosphere; (v) relative abundance of selected fungal pathogens species. In each site, three cropping systems were considered: (1) crop 1-monocropping; (2) crop 2-monocropping; (3) crop 1-crop 2-intercropping or strip cropping. Results showed that, just before harvest, multi-cropping can increase soil microbial biomass amount and shape microbial community toward a predominance of some bacteria or fungi phyla, in the function of soil nutrient availability. We mainly observed a selection effect of crop type on rhizosphere microbiota. Particularly, Bacteroidetes and Mortierellomycota relative abundances in rhizosphere soil resulted in suitable ecological indicators of the positive effect of plant diversity in field, the first ones attesting an improved C and P cycles in soil and the second ones a reduced soil pathogens' pressure. Plant diversity also increased the root mycorrhizal colonization between the intercropped crops that, when properly selected, can also reduce the relative abundance of potential soil-borne pathogens, with a positive effect on crop productivity in long term.
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Affiliation(s)
- Alessandra Trinchera
- Council for Agricultural Research and Economics-Research Centre for Agriculture and Environment, Rome, Italy
| | - Melania Migliore
- Council for Agricultural Research and Economics-Research Centre for Agriculture and Environment, Rome, Italy
| | - Dylan Warren Raffa
- Council for Agricultural Research and Economics-Research Centre for Agriculture and Environment, Rome, Italy
| | - Sarah Ommeslag
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Merelbeke, Belgium
| | - Jane Debode
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Merelbeke, Belgium
| | | | - Sandra Dane
- Latvian Institute of Horticulture, LatHort, Dobeles Novads, Latvia
| | | | - Pirjo Kivijarvi
- LUKE (FI) Natural Resources Institute Finland, Helsinki, Finland
| | | | - Liga Lepse
- Latvian Institute of Horticulture, LatHort, Dobeles Novads, Latvia
| | - Tapio Salo
- LUKE (FI) Natural Resources Institute Finland, Helsinki, Finland
| | - Gabriele Campanelli
- Council for Agricultural Research and Economics-Research Centre for Vegetable and Ornamental Crops, Monsampolo del Tronto, Italy
| | - Koen Willekens
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Merelbeke, Belgium
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Cosme M, Fernández I, Declerck S, van der Heijden MGA, Pieterse CMJ. A coumarin exudation pathway mitigates arbuscular mycorrhizal incompatibility in Arabidopsis thaliana. PLANT MOLECULAR BIOLOGY 2021; 106:319-334. [PMID: 33825084 DOI: 10.1007/s11103-021-01143-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 03/21/2021] [Indexed: 06/12/2023]
Abstract
Overexpression of genes involved in coumarin production and secretion can mitigate mycorrhizal incompatibility in nonhost Arabidopsis plants. The coumarin scopoletin, in particular, stimulates pre-penetration development and metabolism in mycorrhizal fungi. Although most plants can benefit from mutualistic associations with arbuscular mycorrhizal (AM) fungi, nonhost plant species such as the model Arabidopsis thaliana have acquired incompatibility. The transcriptional response of Arabidopsis to colonization by host-supported AM fungi switches from initial AM recognition to defense activation and plant growth antagonism. However, detailed functional information on incompatibility in nonhost-AM fungus interactions is largely missing. We studied interactions between host-sustained AM fungal networks of Rhizophagus irregularis and 18 Arabidopsis genotypes affected in nonhost penetration resistance, coumarin production and secretion, and defense (salicylic acid, jasmonic acid, and ethylene) and growth hormones (auxin, brassinosteroid, cytokinin, and gibberellin). We demonstrated that root-secreted coumarins can mitigate incompatibility by stimulating fungal metabolism and promoting initial steps of AM colonization. Moreover, we provide evidence that major molecular defenses in Arabidopsis do not operate as primary mechanisms of AM incompatibility nor of growth antagonism. Our study reveals that, although incompatible, nonhost plants can harbor hidden tools that promote initial steps of AM colonization. Moreover, it uncovered the coumarin scopoletin as a novel signal in the pre-penetration dialogue, with possible implications for the chemical communication in plant-mycorrhizal fungi associations.
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Affiliation(s)
- Marco Cosme
- Plant-Microbe Interactions, Department of Biology, Science4Life, Utrecht University, PO Box 800.56, 3508 TB, Utrecht, the Netherlands.
- Mycology, Applied Microbiology, Earth and Life Institute, Université Catholique de Louvain, Croix du sud 2, bte L7.05.06, 1348, Louvain-la-Neuve, Belgium.
| | - Iván Fernández
- Plant-Microbe Interactions, Department of Biology, Science4Life, Utrecht University, PO Box 800.56, 3508 TB, Utrecht, the Netherlands
| | - Stéphane Declerck
- Mycology, Applied Microbiology, Earth and Life Institute, Université Catholique de Louvain, Croix du sud 2, bte L7.05.06, 1348, Louvain-la-Neuve, Belgium
| | - Marcel G A van der Heijden
- Plant-Microbe Interactions, Department of Biology, Science4Life, Utrecht University, PO Box 800.56, 3508 TB, Utrecht, the Netherlands
- Plant-Soil Interactions, Department of Agroecology and Environment, Agroscope Reckenholz, Reckenholzstrasse 191, 8046, Zurich, Switzerland
- Department of Plant and Microbial Biology, University of Zürich, 8057, Zurich, Switzerland
| | - Corné M J Pieterse
- Plant-Microbe Interactions, Department of Biology, Science4Life, Utrecht University, PO Box 800.56, 3508 TB, Utrecht, the Netherlands
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