AMF species improve yielding potential of Cd stressed pigeonpea plants by modulating sucrose-starch metabolism, nutrients acquisition and soil microbial enzymatic activities

Bisht, Aditi; Garg, Neera

doi:10.1007/s10725-021-00791-9

Cited by 36 publications

(3 citation statements)

References 123 publications

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“…Recent research suggests that mycorrhizal fungi do more than just aid nutrient uptake. They also play a major role in stimulating microbial and enzymatic activity, enhancing photosynthesis, and increasing water uptake and flexibility in the face of abiotic and biotic stresses, ultimately leading to increased yields [ 24 , 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Integration of Horse Manure Vermicompost Doses and Arbuscular Mycorrhizal Fungi to Improve Fruit Quality, and Soil Fertility in Tomato Field Facing Drought Stress

Lahbouki,

Hashem,

Kumar

et al. 2024

Plants

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Climate change poses major challenges for agriculture in arid and semi-arid regions, with drought conditions severely affecting water-intensive crops such as tomatoes. This study evaluates the efficacy of organic amendments, derived from horse manure, and arbuscular mycorrhizal fungi (AMF) on enhancing tomato (Solanum lycopersicum L.) fruit quality and soil health under semi-arid field conditions. The experimental design included two irrigation regimes (well-watered and drought stress) and two levels of vermicompost application (C1 5 t ha−1 and C2 10 t ha−1), applied individually or in combination with AMF. The results indicate that drought stress reduced tomato fruit growth and yield, while osmoprotectant accumulation, antioxidant enzyme activity, and bioactive compound levels increased, and the 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity of tomato fruit also increased. Notably, the biostimulants application, especially (C1+AMF), counteracted the adverse effects of drought, compared to the control, by significantly enhancing fruit yields (60%), as well as increasing ascorbic acid levels (59%) and free amino acids content (90%). These treatments also improved the activity of bioactive compounds and nutrient uptake in the fruit. Furthermore, biostimulant application positively affected the physicochemical properties of soil. The results obtained confirm that the application of biostimulants can be suitable for improving crop sustainability and adaptability under conditions of water stress in semi-arid field regions.

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Section: Introductionmentioning

confidence: 99%

Integration of Horse Manure Vermicompost Doses and Arbuscular Mycorrhizal Fungi to Improve Fruit Quality, and Soil Fertility in Tomato Field Facing Drought Stress

Lahbouki,

Hashem,

Kumar

et al. 2024

Plants

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“…Carbohydrates serve as essential energy sources and signalling molecules, and thus their availability and distribution are critical for developmental processes [24]. The Cdinduced alteration of total soluble sugar levels and carbohydrate metabolism was previously described [20,[25][26][27][28][29][30]. The Cd exposure significantly increased soluble and reducing carbohydrates in summer savory (Satureja hortensis L.) [31], while decreasing the reducing sugar content in wheat seedlings [20].…”

Section: Introductionmentioning

confidence: 99%

Cadmium-Induced Changes in the Accumulation of Sugars and the PsGolS Transcript in Pisum sativum L.

Głowacka,

Pluskota,

Najdzion

et al. 2024

Applied Sciences

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Cadmium (Cd) is a key stress factor that affects plant development. To examine the influence of Cd stress, we analysed the tissue localisation of polysaccharides (Periodic Acid Schiff reaction), qualitative and quantitative changes in soluble carbohydrates (High-Resolution Gas Chromatography), and the expression of the galactinol synthase (PsGolS) and raffinose synthase (PsRS) genes in 4-week-old Pisum sativum L. ‘Pegaz’. The plants were treated with 10, 50, 100, and 200 µM CdSO4 for one week and analysed on the 1st, 7th, and 28th days after Cd application. Pea as an excluder plant accumulated Cd mainly in the roots. Cd induced starch grain storage in the stems and the accumulation of soluble carbohydrates in roots and shoots after 28 days of Cd treatment. In controls, soluble carbohydrate levels decreased during the plant growth. In addition, Cd increased galactinol and raffinose levels, indicating their important role in response to Cd stress in peas. Moreover, the analysis confirmed that the expression of PsGolS was induced by Cd. Overall, the results of the distribution of carbohydrates in pea plants, together with the inhibition of seed production by Cd, indicate that plants tend to allocate energy to stress response mechanisms rather than to reproductive processes.

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“…Arbuscular mycorrhizal fungi (AMF) are a group of important symbiotic microorganisms, which can promote plant growth by promoting nutrient uptake and carbohydrate utilization [13,14]. The mechanism of AMF reducing plant Cd uptake mainly includes: (1) altering the expression level of heavy metal transporter gene [15,16]; (2) enhancing the absorption of nitrogen and phosphorus by plants, consequently increasing plant biomass and reducing heavy metal concentrations through dilution effect [17]; (3) binding heavy metals to fungal mycelium, decreasing plant accessibility to heavy metals [18]; (4) lowering Cd concentration in cell walls and vacuoles, influencing Cd absorption and altering its chemical form [19].…”

Section: Introductionmentioning

confidence: 99%

Combined application of arbuscular mycorrhizal fungi and selenium fertilizer increased wheat biomass under cadmium stress and shapes rhizosphere soil microbial communities

Liu,

Wang,

Nie

et al. 2024

BMC Plant Biol

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Background Selenium (Se) fertilizer and arbuscular mycorrhizal fungi (AMF) are known to modulate cadmium (Cd) toxicity in plants. However, the effects of their co-application on wheat growth and soil microbial communities in Cd-contaminated soil are unclear. Results A pot experiment inoculation with two types of AMF and the application of Se fertilizer under Cd stress in wheat showed that inoculation AMF alone or combined with Se fertilizer significantly increased wheat biomass. Se and AMF alone or in combination significantly reduced available Cd concentration in wheat and soil, especially in the Se combined with Ri treatment. High throughput sequencing of soil samples indicated that Se and AMF application had stronger influence on bacterial community compared to fungal community and the bacterial network seemed to have more complex interconnections than the fungal network, and finally shaped the formation of specific microflora to affect Cd availability. Conclusion These results indicate that the application of Se and AMF, particularly in combination, could successfully decrease soil Cd availability and relieve the harm of Cd in wheat by modifying rhizosphere soil microbial communities.

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AMF species improve yielding potential of Cd stressed pigeonpea plants by modulating sucrose-starch metabolism, nutrients acquisition and soil microbial enzymatic activities

Cited by 36 publications

References 123 publications

Integration of Horse Manure Vermicompost Doses and Arbuscular Mycorrhizal Fungi to Improve Fruit Quality, and Soil Fertility in Tomato Field Facing Drought Stress

Integration of Horse Manure Vermicompost Doses and Arbuscular Mycorrhizal Fungi to Improve Fruit Quality, and Soil Fertility in Tomato Field Facing Drought Stress

Cadmium-Induced Changes in the Accumulation of Sugars and the PsGolS Transcript in Pisum sativum L.

Combined application of arbuscular mycorrhizal fungi and selenium fertilizer increased wheat biomass under cadmium stress and shapes rhizosphere soil microbial communities

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