Silencing MdGH3-2/12 in apple reduces drought resistance by regulating AM colonization

Huang, Dong; Wang, Qian; Zhang, Zhijun; Jing, Guangquan; Ma, Ming; Ma, Fengwang; Li, Chao

doi:10.1038/s41438-021-00524-z

Cited by 15 publications

(11 citation statements)

References 58 publications

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“…Moreira et al 51 found that coffee plants inoculated with R. clarus had a higher mycorrhizal colonization (39%) and root dry matter than noninoculated plants, in soils at 71% of field capacity. Inoculation with AMF of different species has also been shown to potentially mitigate the effects of drought stress and increase resistance in bean 52 , rice 53 , tomato 54 , wheat 55 , and in orange 15 and apple 56 trees.…”

Section: Discussionmentioning

confidence: 99%

The arbuscular mycorrhizal fungus Rhizophagus clarus improves physiological tolerance to drought stress in soybean plants

Oliveira

Cabral

Santana

et al. 2022

Sci Rep

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Soybean (Glycine max L.) is an economically important crop, and is cultivated worldwide, although increasingly long periods of drought have reduced the productivity of this plant. Research has shown that inoculation with arbuscular mycorrhizal fungi (AMF) provides a potential alternative strategy for the mitigation of drought stress. In the present study, we measured the physiological and morphological performance of two soybean cultivars in symbiosis with Rhizophagus clarus that were subjected to drought stress (DS). The soybean cultivars Anta82 and Desafio were grown in pots inoculated with R. clarus. Drought stress was imposed at the V3 development stage and maintained for 7 days. A control group, with well-irrigated plants and no AMF, was established simultaneously in the greenhouse. The mycorrhizal colonization rate, and the physiological, morphological, and nutritional traits of the plants were recorded at days 3 and 7 after drought stress conditions were implemented. The Anta82 cultivar presented the highest percentage of AMF colonization, and N and K in the leaves, whereas the DS group of the Desafio cultivar had the highest water potential and water use efficiency, and the DS + AMF group had thermal dissipation that permitted higher values of Fv/Fm, A, and plant height. The results of the principal components analysis demonstrated that both cultivars inoculated with AMF performed similarly under DS to the well-watered plants. These findings indicate that AMF permitted the plant to reduce the impairment of growth and physiological traits caused by drought conditions.

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Section: Discussionmentioning

confidence: 99%

The arbuscular mycorrhizal fungus Rhizophagus clarus improves physiological tolerance to drought stress in soybean plants

Oliveira

Cabral

Santana

et al. 2022

Sci Rep

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“…According to these authors, the increase in mycorrhizal colonization was su cient to mitigate water stress in plants of C. lanatus and L. barbarum. Also, AMF inoculation has been described as a potential tool used to mitigate the effects of water de cit and increase plant resistance in bean 48 , rice 49 , tomato 50 , wheat 51 , and trees 52,53 .…”

Section: Discussionmentioning

confidence: 99%

The Arbuscular Mycorrhizal Fungus Rhizophagus Clarus Improve Physiological Tolerance to Drought Stress in Soybean Plants

Oliveira

Cabral

Santana

et al. 2021

Preprint

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Soybean (Glycine max L.) is an economically important crop worldwide. However, increasingly long periods of drought have reduced the productivity of this crop. Studies have shown that inoculation with arbuscular mycorrhizal fungi (AMF) provides a potential alternative strategy for mitigating drought. In the present study, we measured the physiological and morphological performance of two soybean cultivars under drought in symbiosis with Rhizophagus clarus. Soybean plants Anta82 and Desafio, were grown in pots previously inoculated with R. clarus. Water deficit (WD) was imposed at the V3 development stage and maintained for 7 days. A control group was performed in parallel with well-irrigated plants in the absence of R. clarus in a greenhouse. Three and seven days after the WD imposition the analysis were performed. Cultivar Anta82 showed a higher percentage of colonization, N and K leaf content, whereas Desafio, showed higher water potential, water-use efficiency under WD, and thermal dissipation that allowed higher values for Fv/Fm, A, and PH under WD+AMF. The Principal Components Analysis results were able to demonstrate that both cultivars in water deficit with AMF colonization clustered together with well-watered plants. These findings suggest that AMF had an effect on plants in order to reduce drought physiological impairment.

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“…In a study, it was noted AMF improve the expression of TdDRF1 and induce drought tolerance in wheat plants ( Fiorilli et al, 2022 ). AMF also up-regulates the expression of MdGH3-2 and MdGH3-12 which improve the plant RWC, photosynthetic capacity, chlorophyll contents, and scavenging of ROS in apple plants ( Huang et al, 2021 ). Conversely, silencing of MdGH3-2/12 genes from apple plants negatively affected AMF colonization, plant growth, and subsequent development under DS ( Huang et al, 2021 ).…”

Section: Arbuscular Mycorrhizal Fungi Regulates Gene Expression Aquap...mentioning

confidence: 99%

The Critical Role of Arbuscular Mycorrhizal Fungi to Improve Drought Tolerance and Nitrogen Use Efficiency in Crops

Tang

Hassan

et al. 2022

Front. Plant Sci.

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Drought stress (DS) is a serious abiotic stress and a major concern across the globe as its intensity is continuously climbing. Therefore, it is direly needed to develop new management strategies to mitigate the adverse effects of DS to ensure better crop productivity and food security. The use of arbuscular mycorrhizal fungi (AMF) has emerged as an important approach in recent years to improve crop productivity under DS conditions. AMF establishes a relationship with 80% of land plants and it induces pronounced impacts on plant growth and provides protection to plants from abiotic stress. Drought stress significantly reduces plant growth and development by inducing oxidative stress, disturbing membrane integrity, plant water relations, nutrient uptake, photosynthetic activity, photosynthetic apparatus, and anti-oxidant activities. However, AMF can significantly improve the plant tolerance against DS. AMF maintains membrane integrity, improves plant water contents, nutrient and water uptake, and water use efficiency (WUE) therefore, improve the plant growth under DS. Moreover, AMF also protects the photosynthetic apparatus from drought-induced oxidative stress and improves photosynthetic efficiency, osmolytes, phenols and hormone accumulation, and reduces the accumulation of reactive oxygen species (ROS) by increasing anti-oxidant activities and gene expression which provide the tolerance to plants against DS. Therefore, it is imperative to understand the role of AMF in plants grown under DS. This review presented the different functions of AMF in different responses of plants under DS. We have provided a detailed picture of the different mechanisms mediated by AMF to induce drought tolerance in plants. Moreover, we also identified the potential research gaps that must be fulfilled for a promising future for AMF. Lastly, nitrogen (N) is an important nutrient needed for plant growth and development, however, the efficiency of applied N fertilizers is quite low. Therefore, we also present the information on how AMF improves N uptake and nitrogen use efficiency (NUE) in plants.

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Silencing MdGH3-2/12 in apple reduces drought resistance by regulating AM colonization

Cited by 15 publications

References 58 publications

The arbuscular mycorrhizal fungus Rhizophagus clarus improves physiological tolerance to drought stress in soybean plants

The arbuscular mycorrhizal fungus Rhizophagus clarus improves physiological tolerance to drought stress in soybean plants

The Arbuscular Mycorrhizal Fungus Rhizophagus Clarus Improve Physiological Tolerance to Drought Stress in Soybean Plants

The Critical Role of Arbuscular Mycorrhizal Fungi to Improve Drought Tolerance and Nitrogen Use Efficiency in Crops

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