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Thanni B, Merckx R, Hauser S, Soretire A, Honnay O. Multiple taxa inoculants of arbuscular mycorrhizal fungi enhanced colonization frequency, biomass production, and water use efficiency of cassava (Manihot esculenta). Int Microbiol 2024; 27:1219-1230. [PMID: 38157110 DOI: 10.1007/s10123-023-00466-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 11/15/2023] [Accepted: 12/07/2023] [Indexed: 01/03/2024]
Abstract
Increasing water use efficiency (WUE) in crops is critical to maintaining agricultural production under climate change-exacerbated drought. One of these approaches may consist of leveraging on the beneficial interactions between crops and arbuscular mycorrhizal fungi (AMF). In this study, we investigated how inoculation with AMF from three different taxa (Claroideoglomus etunicatum (T1), Gigaspora margarita (T2), and Rhizophagus irregularis (T3)) and their combination (T123) and a non-inoculated "control" treatment in a greenhouse could achieve increased biomass production and water use efficiency in cassava under three levels of water availability (100% PC, 60%-moderate stress, and 30%-severe stress). Whereas T1 and T2 resulted in a lower growth rate for the plants than the control, T123 enhanced cassava height and the number of petioles and leaves. T123 and T3 increased the total plant dry biomass in comparison with uninoculated plants by 30% and 26%, respectively. The T123 and plants inoculated with T3 significantly increased cassava above-ground biomass by 19% as compared to T1 (8.68 ± 2.44 g) and T2 (8.68 ± 2.44 g) inoculated plants. T123 resulted in higher WUE, which was validated by the leaf carbon (δ13C) isotopic signature, significantly outperforming cassava with T1 and T2, yet there was no difference between the control and T3. Overall, this study demonstrated that the use of multiple AMF from different taxa can increase cassava growth and WUE under greenhouse conditions.
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Affiliation(s)
- Bolaji Thanni
- Division Soil and Water Management, Department of Earth and Environmental Sciences, KU Leuven, Kasteelpark Arenberg 20, 3001, Louvain, Belgium.
- Department of Biology, Agronomic and Conservation Ecology, KU Leuven, B-3001, Louvain, Belgium.
- Root and Tuber Agronomy, International Institute of Tropical Agriculture, Ibadan, Nigeria.
- Department of Soil Science and Land Management, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Roel Merckx
- Division Soil and Water Management, Department of Earth and Environmental Sciences, KU Leuven, Kasteelpark Arenberg 20, 3001, Louvain, Belgium
| | - Stefan Hauser
- Root and Tuber Agronomy, International Institute of Tropical Agriculture, Ibadan, Nigeria
| | - Adeniyi Soretire
- Department of Soil Science and Land Management, Federal University of Agriculture, Abeokuta, Nigeria
| | - Olivier Honnay
- Department of Biology, Agronomic and Conservation Ecology, KU Leuven, B-3001, Louvain, Belgium
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Masebo N, Birhane E, Takele S, Belay Z, Lucena JJ, Pérez-Sanz A, Anjulo A. Diversity of Arbuscular Mycorrhizal fungi under different agroforestry practices in the drylands of Southern Ethiopia. BMC PLANT BIOLOGY 2023; 23:634. [PMID: 38066451 PMCID: PMC10709898 DOI: 10.1186/s12870-023-04645-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023]
Abstract
The conversion of an agroforestry based agricultural system to a monocropping farming system influences the distribution and composition of arbuscular mycorrhizal fungi (AMF). The aim of this paper was to analyze AMF species diversity, spore density, and root colonization across different agroforestry practices (AFP) in southern Ethiopia. Soil and root samples were collected from homegarden, cropland, woodlot, and trees on soil and water conservation-based AFP. AMF spores were extracted from the soil and species diversity was evaluated using morphological analysis and root colonization from root samples. The AMF spore density, root colonization and composition were significantly different among the AFP (P < 0.05). In this study, 43 AMF morphotypes belonging to eleven genera were found, dominated by Acaulospora (32.56%), followed by Claroideoglomus (18.60%). Home gardens had the highest spore density (7641.5 spore100 g- 1 dry soil) and the lowest was recorded in croplands (683.6 spore100 g- 1 dry soil). Woodlot had the highest root colonization (54.75%), followed by homegarden (48.25%). The highest isolation frequency (63.63%) was recorded for Acaulospora scrobiculata. The distribution of AMF species and diversity were significantly related to soil total nitrogen and organic carbon. The homegarden and woodlot AFP were suitable for soil AMF reserve and conservation.
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Affiliation(s)
- Nebiyou Masebo
- Department of Natural Resource Management, Wolaita Sodo University, Wolaita Sodo, P.O. Box 128, Ethiopia
- Department of Biology, Arba Minch University, Arba Minch, P.O. Box 138, Arbaminch, Ethiopia
| | - Emiru Birhane
- Department of Land Resource Management and Environmental Protection, Mekelle University, P.O. Box 231, Tigray, Ethiopia.
- Institute of Climate and Society, Mekelle University, P. O. Box 231, Mekelle, Ethiopia.
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences (NMBU), Ås, Norway.
| | - Serekebirhan Takele
- Department of Biology, Arba Minch University, Arba Minch, P.O. Box 138, Arbaminch, Ethiopia
| | - Zerihun Belay
- Department of Applied Biology, Adama Science and Technology University, P.O. Box 231, Adama, Ethiopia
| | - Juan J Lucena
- Department of Agricultural Chemistry and Food Science, Autonomous University of Madrid, Madrid, 28049, Spain
| | - Araceli Pérez-Sanz
- Department of Agricultural Chemistry and Food Science, Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Agena Anjulo
- Environment and Forest Research Institute, Addis Ababa, P.O. Box 231, Ethiopia
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