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Han AQ, Chen SB, Zhang DD, Liu J, Zhang MC, Wang B, Xiao Y, Liu HT, Guo TC, Kang GZ, Li GZ. Effects of Arbuscular Mycorrhizal Fungi on the Growth and Nutrient Uptake in Wheat Under Low Potassium Stress. PLANTS (BASEL, SWITZERLAND) 2025; 14:1288. [PMID: 40364317 PMCID: PMC12073276 DOI: 10.3390/plants14091288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2025] [Revised: 04/22/2025] [Accepted: 04/22/2025] [Indexed: 05/15/2025]
Abstract
Potassium (K) plays important roles in plant growth and development processes, while low K (LK) stress inhibits plant growth by altering reactive oxygen species accumulation. Arbuscular mycorrhizal fungi (AMF) promote nutrient absorption and transport in plants. However, the roles of AMF in affecting K nutrition are less well studied than those of other nutrients, especially in wheat. In this study, the effects of AMF on four wheat varieties were evaluated; results showed that the inoculation with the AMF-Rhizophagus intraradices significantly increased mycorrhizal colonization, fresh and dry weights, ascorbic acid, and glutathione contents, while decreasing malondialdehyde contents under both normal and LK stress treatments. It is worth noting that the contents of K and several nutrient elements were more significantly increased in roots than in shoots, suggesting that AMF mainly affect the uptake of K and other nutrient elements in the roots. Moreover, the expression levels of K transporter genes were higher than those of nitrogen and phosphorus transporter genes, especially under AMF combined with LK stress treatments. These results indicate that AMF improves wheat growth and antioxidant activity by regulating K transporter gene expression and affecting K uptake and transport. Therefore, AMF could be used as a sustainable agricultural alternative in wheat under LK soils.
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Affiliation(s)
- An-Qi Han
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
| | - Shuai-Bo Chen
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
| | - Dan-Dan Zhang
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
| | - Jin Liu
- Henan Technological Innovation Centre of Wheat, Henan Agricultural University, Zhengzhou 450046, China;
| | - Meng-Chuan Zhang
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
| | - Bin Wang
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
| | - Yue Xiao
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
| | - Hai-Tao Liu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, China;
| | - Tian-Cai Guo
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
- Henan Technological Innovation Centre of Wheat, Henan Agricultural University, Zhengzhou 450046, China;
| | - Guo-Zhang Kang
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
- Henan Technological Innovation Centre of Wheat, Henan Agricultural University, Zhengzhou 450046, China;
| | - Ge-Zi Li
- The National Engineering Research Center for Wheat, Henan Agricultural University, Zhengzhou 450046, China; (A.-Q.H.); (S.-B.C.); (D.-D.Z.); (M.-C.Z.); (B.W.); (Y.X.)
- State Key Laboratory of High-Efficiency Production of Wheat-Maize Double Cropping, Henan Agricultural University, Zhengzhou 450046, China
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Akbar M, Chohan SA, Yasin NA, Ahmad A, Akram W, Nazir A. Mycorrhizal inoculation enhanced tillering in field grown wheat, nutritional enrichment and soil properties. PeerJ 2023; 11:e15686. [PMID: 37719109 PMCID: PMC10504892 DOI: 10.7717/peerj.15686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/14/2023] [Indexed: 09/19/2023] Open
Abstract
To meet food security, commercial fertilizers are available to boost wheat yield, but there are serious ill effects associated with these fertilizers. Amongst various organic alternatives, inoculating crop fields with mycorrhizal species is the most promising option. Although, mycorrhizae are known to enhance wheat yield, but how the mycorrhizae influence different yield and quality parameters of wheat, is not clear. Therefore, this study was undertaken to investigate the influence of indigenous mycorrhizal species on the growth of wheat, its nutritional status and soil properties, in repeated set of field experiments. In total 11 species of mycorrhizae were isolated from the experimental sites with Claroideoglomus, being the most dominant one. Five different treatments were employed during the present study, keeping plot size for each replicate as 6 × 2 m. Introduction of consortia of mycorrhizae displayed a significant increase in number of tillers/plant (49.5%), dry biomass (17.4%), grain yield (21.2%) and hay weight (16.7%). However, there was non-significant effect of mycorrhizal inoculation on 1,000 grains weight. Moreover, protein contents were increased to 24.2%. Zinc, iron, phosphorus and potassium concentrations were also increased to 24%, 21%, 30.9% and 14.8%, respectively, in wheat grains. Enhancement effects were also noted on soil fertility such as soil organic carbon % age, available phosphorus and potassium were increased up to 64.7%, 35.8% and 23.9%, respectively. Herein, we concluded that mycorrhizal introduction in wheat fields significantly increased tillering in wheat and this increased tillering resulted in overall increase in wheat biomass/yield. Mycorrhizae also enhanced nutritional attributes of wheat grains as well as soil fertility. The use of mycorrhizae will help to reduce our dependance on synthetic fertilizers in sustainable agriculture.
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Affiliation(s)
- Muhammad Akbar
- Department of Botany, University of Gujrat, Gujrat, Punjab, Pakistan
| | - Safeer A Chohan
- Department of Botany, University of Gujrat, Gujrat, Punjab, Pakistan
| | - Nasim A Yasin
- SSG, RO-II Department, University of the Punjab, Lahore, Punjab, Pakistan
| | - Aqeel Ahmad
- University of Chinese Academy of Sciences, Beijing, Beijing, China
| | - Waheed Akram
- Department of Plant Pathology, University of the Punjab, Lahore, Punjab, Pakistan
| | - Abdul Nazir
- Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad, Pakistan
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Yu L, Zhang W, Geng Y, Liu K, Shao X. Cooperation With Arbuscular Mycorrhizal Fungi Increases Plant Nutrient Uptake and Improves Defenses Against Insects. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.833389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Plants have evolved various defense mechanisms to cope with biotic and abiotic stresses. Cooperation with microorganisms, especially arbuscular mycorrhizal fungi (AMF), strengthens the defense capabilities of host plants. To explore the effect of AMF on the growth of Elymus and the defenses against locust feeding, we designed a two-compartment device to connect or cut the mycelia and roots. We used this to investigate communication cues and pathways between donor and receiver plants. We found that AMF significantly increased the nitrogen content and decreased the carbon to nitrogen (C:N) ratio of donor plants and receiver plants and the carbon content of both. After the establishment of the common mycorrhizal network (CMN) with AMF between the two chambers, inoculations of donor plants challenged by locusts caused enhancement in four defense-related enzymes, namely, lipoxygenase, polyphenol oxidase, phenylalanine ammonia lyase, and β-1,3-glucanase, in the receiver plants. The main components of volatile organic compounds emitted by receiver plants were terpenoids. The findings indicated that AMF could not only improve plant growth but also activate the defense response of plants to insect feeding. Four defense enzymes, volatile organic compounds, and carbon and nitrogen content were involved in the defense response, and the mycelial network could act as a conduit to deliver communication signals.
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