Biocompatibility Effect of Bradyrhizobium japonicum and Trichoderma Strains on Growth, Nodulation and Physiological Traits of Soybean (Glycine max L.) under Water Deficit Conditions

Nahrawy, Sahar El; Elbagory, Mohssen; Omara, Alaa El-Dein

doi:10.9734/jamb/2020/v20i1130300

Cited by 6 publications

(5 citation statements)

References 14 publications

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“…On the basis of the recent literature [52][53][54], the hypothesis to verify is that this type of formulation could be useful in overcoming drought stress by improving plants' growth and final yield. The results obtained from the present experiment are compatible with what has already been reported in literature [54][55][56][57], and confirm the usefulness of the formulation in improving yields both in optimal water supply and in case of drought stress. In literature, it is reported that the factors influencing the efficacy of microbial treatments are complex and genotype dependent [27].…”

Section: Discussionsupporting

confidence: 92%

Use of Bioinoculants Affects Variation in Snap Bean Yield Grown under Deficit Irrigation

et al. 2023

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The use of beneficial microorganisms, such as plant growth promoting rhizobacteria (PGPR) and mycorrhizal fungi, for organic farming could improve the productivity and the resilience of vegetable crops. Both PGPR and PGPF are allowed for organic farming, and they represent new important tools for regenerating poor and marginal soils in transition to environmentally friendly farming. In the experiment, the effects of PGPM-based products were evaluated on snap bean in combination with two irrigation regimes. The experimental design adopted was split-plot, with the main plot represented by the irrigation regime (reintegration of 100 and 60% of the ETc), the sub-plot by the microbial consortia, and finally the sub-sub-plot by genotype (‘Domino’ and ‘Maxi’). Seeds were sown in a cold greenhouse and the growing cycle finished after 86 days from sowing. The results showed a significant increase of the yield due to the application of PGPM compared to the control. The deficit irrigation applied (ETc 60%) affected plants growth in the two genotypes and their related production differently (in average 2.20 kg m−2 for Domino and 3.63 kg m−2 for Maxi), showing a positive effect of PGPM on yield (in average 2.47 kg m−2 without PGPM and 3.36 kg m−2 with PGPM) and product quality. Furthermore, an interesting negative correlation between the number of nodules and the yield was also observed, as a consequence of their early outcome which increased plant productivity in relation to the experimental factors.

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Section: Discussionsupporting

confidence: 92%

Use of Bioinoculants Affects Variation in Snap Bean Yield Grown under Deficit Irrigation

et al. 2023

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“…Although, it was reported that some plant growth‐promoting rhizobacteria could have a positive effect on stress mitigation in dry environments (Niu et al, 2018) and also could play a vital role in reducing the adverse effects of drought, improving plant productivity (Khan et al, 2020), few reports mention Trichoderma effects on legume plants under stress plant conditions (Kaur & Kumar, 2020; Nahrawy et al, 2020). In this study, our results showed a positive response in soybean as in common bean after inoculation with two selected native T. harzianum , both under optimal irrigation or drought stress.…”

Section: Discussionmentioning

confidence: 92%

“…is a well-known cosmopolitan fungal organism usually used to enhance the growth of different plant species (Sharma et al, 2019), as a biocontroller of plant pathogens, and for providing tolerance to environmental stresses (Chepsergon et al, 2014). However, these effects depend on the potentiality and the specificity of Although, it was reported that some plant growth-promoting rhizobacteria could have a positive effect on stress mitigation in dry environments (Niu et al, 2018) and also could play a vital role in reducing the adverse effects of drought, improving plant productivity (Khan et al, 2020), few reports mention Trichoderma effects on legume plants under stress plant conditions (Kaur & Kumar, 2020;Nahrawy et al, 2020). In this study, our results showed a positive response in soybean as in common bean after inoculation with two selected native T. harzianum, both under optimal irrigation or drought stress.…”

Section: Discussionmentioning

confidence: 99%

Trichoderma harzianum enhances root biomass production and promotes lateral root growth of soybean and common bean under drought stress

Battaglia,

Martinez,

Covacevich

et al. 2024

Annals of Applied Biology

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Drought stress (DS) is one of the main environmental stresses that determines crop productivity. It has been estimated that DS depresses over 40%–60% of soybean (Glycine max (L.) Merr.) and common bean (Phaseolus vulgaris L.) production worldwide, respectively. Although different agronomic strategies are sometimes implemented, the current goal in sustainable agriculture could involve the inoculation with native microorganisms to mitigate DS effects. A potential fungal candidate is Trichoderma, which is recognized as a ubiquitous soil inhabitant with growth‐promoting and biocontrol potentiality. However, its potential for mitigating the stress for water deficit is less well‐documented. Our objective was to evaluate the effect of inoculation with native Trichoderma harzianum strains on soybean and common bean growth under contrasting conditions of water availability. Seeds were independently inoculated (or not) with IB‐J15 and IB‐363 strains, and plants were submitted to DS or were kept under optimal irrigation (well‐watered, WW). In both legumes, the most evident effect after being inoculated was the modification of plant root architecture, the increase in root area and the development of lateral roots in plants under WW and DS conditions. In soybean, both Trichoderma strains had a positive inoculation response, both fresh and dry root biomass increased under WW, and remarkably under DS conditions. The main effect was an increase of about 110% in root dry weight under WW and, about 330% in DS in plants inoculated with IB‐J15 strain, meanwhile, plants inoculated with IB‐363 increased root dry weight 60% in WW and 177% in DS conditions. Notably in soybean, the inoculation with both Trichoderma strains increased the root area more than 70% in both WW and DS conditions. Common beans inoculated with IB‐363 under WW conditions, reached a positive inoculation responsiveness of around 247% in shoot dry weight biomass, and under WW both strains increased the root area more than 50%. Further, IB‐363 increased leaf area by 25% in WW and 72% in DS. Additionally, the in vitro co‐culture between both Trichoderma strains and nodulating Rhizobium etli and Bradyrhizobium japonicum E109 showed compatibility between microorganisms, since no inhibition of their growth was observed. We emphasize that plants inoculated with Trichoderma showed better resistance to water deficit, as seen by redistribution of photosynthates, prioritizing mainly, the development of the root system. © 2024 Association of Applied Biologists.

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“…Higher net photosynthetic rate, stomatal conductance, and RWC in soybean plants subjected to water stress and grown in saline soil were noticed due to increased CO 2 influx, transpiration rate, and photosystem II which, induced by combined application of PGPMs and K-humate, resulted in the production of plant growth hormones and IAA synthesis that increased water uptake together with increased nutrient uptake by vacuoles, collecting mainly in the cytosol [48].…”

Section: Discussionmentioning

confidence: 99%

Potassium Humate and Plant Growth-Promoting Microbes Jointly Mitigate Water Deficit Stress in Soybean Cultivated in Salt-Affected Soil

Alharbi

Rashwan

Hafez

et al. 2022

Plants

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Lack of high-quality irrigation water and soil salinity are two main environmental factors that affect plant development. When both stressors are combined, the soil becomes sterile and constrains plant productivity. Consequently, two field trials were designed to assess whether plant growth-promoting microbes (PGPMs; Bradyrhizobium japonicum (USDA 110) and Trichoderma harzianum) and potassium humate (K-humate) can stimulate soybean growth, productivity, and seed quality under two different watering regimes as follows: (i) well-watered (WW), where plants were irrigated at 12-day intervals (recommended), and (ii) water stress (WS), where plants were irrigated at the 18-day intervals in salt-affected soil during 2020 and 2021 seasons. Results revealed that coupled application of PGPMs and K-humate resulted in a substantial improvement in K+ levels in the leaves compared to Na+ levels, which has a direct positive impact on an enhancement in the antioxidants defense system (CAT, POX, SOD), which caused the decline of the oxidative stress indicators (H2O2, MDA, and EL%) as well as proline content under water stress in salt-affected soil. Hence, a significant increase in root length, nodule weight, soybean relative water content (RWC), stomatal conductance, photosynthetic pigments, net photosynthetic rate, soluble protein, seed carbohydrate content as well as the number of pods plant−1 and seed yield was reported. In conclusion, the combined application of PGPMs and K-humate might be recommended to maximize the soybean growth and productivity under harsh growth conditions (e.g., water stress and soil salinity).

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Biocompatibility Effect of Bradyrhizobium japonicum and Trichoderma Strains on Growth, Nodulation and Physiological Traits of Soybean (Glycine max L.) under Water Deficit Conditions

Cited by 6 publications

References 14 publications

Use of Bioinoculants Affects Variation in Snap Bean Yield Grown under Deficit Irrigation

Use of Bioinoculants Affects Variation in Snap Bean Yield Grown under Deficit Irrigation

Trichoderma harzianum enhances root biomass production and promotes lateral root growth of soybean and common bean under drought stress

Potassium Humate and Plant Growth-Promoting Microbes Jointly Mitigate Water Deficit Stress in Soybean Cultivated in Salt-Affected Soil

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