Potential of Organic Amendments (AM fungi, PGPR, Vermicompost and Seaweeds) in Combating Salt Stress ... A Review

Kumari, Reeta; Bhatnagar, Sonal; DEEPALI, .; Mehla, Neeti; Vashistha, Amit

doi:10.1016/j.stress.2022.100111

Cited by 31 publications

(18 citation statements)

References 147 publications

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“…Meanwhile, the application of organic amendments in quinoa significantly increased the proline content. In agreement, previous studies reported the accumulation of osmoprotectants in amendments-treated plants under salt-stress conditions ( Flowers and Colmer, 2008 ; Talaat and Shawky, 2014 ; Kumari et al., 2022 ). According to ( Patel et al., 2018 ), an increase in proline content was observed under abiotic-induced stress in Triticum durum treated with Kappaphycus alvarezii sap (K-sap).…”

Section: Discussionsupporting

confidence: 92%

“…To the best of our knowledge, this study is the first of its kind to describe the saponin response to organic amendment. When applied, organic amendments effectively reduced the saponin content at different salinity levels, such effect can be attributed to different mechanisms of amendments on attenuating the salinity-induced stress ( Kumari et al., 2022 ). A study (Alam et al., 2020) suggested that organic amendments enhanced antioxidant activity and pea biosynthesis in pea crops grown under arsenic-contaminated soil.…”

Section: Discussionmentioning

confidence: 99%

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Agro-morphological and biochemical responses of quinoa (Chenopodium quinoa Willd. var: ICBA-Q5) to organic amendments under various salinity conditions

El Mouttaqi,

Sabraoui,

Belcaid

et al. 2023

Front. Plant Sci.

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In the Sahara Desert, due to drought and salinity and poor soil fertility, very limited crop choice is available for the farmers to grow crops. Quinoa (Chenopodium quinoa Willd.) has shown promising under such conditions in the South of Morocco, a true representative site of Sahara Desert. Soil organic amendments have the potential to minimize negative effects of soil salinity and improve crop production. Thus, this study aimed to elucidate the impact of nine organic amendments on quinoa (var. ICBA-Q5) growth, productivity, and biochemical parameters under saline irrigation water application (4, 12, and 20 dS·m-1). Results of the experiment indicate a significant effect of organic amendments on major agro-morphological and productivity parameters. Biomass and seed yield tends to decrease with the rise of salinity level, and organic amendments have improved productivity compared to the non-treated control. However, salinity stress alleviation was assessed by determining pigments concentration, proline content, phenolic compounds, and antioxidant activity. Therefore, the action of organic amendments varies from one level of salinity to another. Furthermore, a remarkably significant decrease in total saponin content was reached due to the application of amendments even at high saline conditions (20 dS·m-1). The results demonstrate the possibility of enhancing the productivity of quinoa as an alternative food crop under salinity conditions by using organic amendments and improving the quality of grains (saponin reduction) during the pre-industrialization process.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Agro-morphological and biochemical responses of quinoa (Chenopodium quinoa Willd. var: ICBA-Q5) to organic amendments under various salinity conditions

El Mouttaqi,

Sabraoui,

Belcaid

et al. 2023

Front. Plant Sci.

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“…It is well known that soil salinity causes an imbalance in mineral uptake and plant nutrition ( Shabala and Munns, 2017 ; Behdad et al., 2021 ) and the initial action of salinity is revealed by a decrease in water absorption capacity in the rooting zone ( Zhao et al., 2020 ). This nutritional disorder induces changes in the plant at morphological, physiological, and metabolic levels ( Kumari et al., 2022 ). The response of plants to an excess of sodium ions (Na + ), the most important salinity-causing substance, is complex and involves a cascade of mechanisms to reduce the adverse effects of Na + ( Chavarria et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

“…In the current context of intensive agriculture and the increasing effects of salinity which appear in several regions in the world ( Pulido-Bosch et al., 2018 ), Different approaches have been proposed and adopted to minimize the adverse effects of salt stress on plant development and productivity. Among the strategies reported is the use of arbuscular mycorrhizal fungi (AMF) ( Elhindi et al., 2017 ; Li et al., 2020 ), inoculation with plant-growth-promoting rhizobacteria (PGPR) ( Ilangumaran and Smith, 2017 ; Tirry et al., 2021 ), nutritional supplementation of silicon ( Altuntas et al., 2018 ; Muhammad et al., 2022 ), the addition of organic soil amendment ( Yang et al., 2020 ; Kumari et al., 2022 ; Xiao et al., 2022 ) and exogenous application of hormones ( Kaya et al., 2013 ). Regarding phosphorus (P) being the most important nutrient after nitrogen (N) for plant growth and development, salt stress has been reported to impact its bioavailability and mobility in the plant-soil continuum, and therefore root uptake ( Demiral, 2017 ; Khan et al., 2018 ; Bouras et al., 2021 ; Bouras et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic performance and nutrient uptake under salt stress: Differential responses of wheat plants to contrasting phosphorus forms and rates

et al. 2022

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Salt stress impacts phosphorus (P) bioavailability, mobility, and its uptake by plants. Since P is involved in many key processes in plants, salinity and P deficiency could significantly cause serious damage to photosynthesis, the most essential physiological process for the growth and development of all green plants. Different approaches have been proposed and adopted to minimize the harmful effects of their combined effect. Optimising phosphorus nutrition seems to bring positive results to improve photosynthetic efficiency and nutrient uptake. The present work posed the question if soluble fertilizers allow wheat plants to counter the adverse effect of salt stress. A pot experiment was performed using a Moroccan cultivar of durum wheat: Karim. This study focused on different growth and physiological responses of wheat plants grown under the combined effect of salinity and P-availability. Two Orthophosphates (Ortho-A & Ortho-B) and one polyphosphate (Poly-B) were applied at different P levels (0, 30 and 45 ppm). Plant growth was analysed on some physiological parameters (stomatal conductance (SC), chlorophyll content index (CCI), chlorophyll a fluorescence, shoot and root biomass, and mineral uptake). Fertilized wheat plants showed a significant increase in photosynthetic performance and nutrient uptake. Compared to salt-stressed and unfertilized plants (C+), CCI increased by 93%, 81% and 71% at 30 ppm of P in plants fertilized by Poly-B, Ortho-B and Ortho-A, respectively. The highest significant SC was obtained at 45 ppm using Ortho-B fertilizer with an increase of 232% followed by 217% and 157% for both Poly-B and Ortho-A, respectively. The Photosynthetic performance index (PItot) was also increased by 128.5%, 90.2% and 38.8% for Ortho-B, Ortho-A and Poly B, respectively. In addition, Poly-B showed a significant enhancement in roots and shoots biomass (49.4% and 156.8%, respectively) compared to C+. Fertilized and salt-stressed plants absorbed more phosphorus. The P content significantly increased mainly at 45 ppm of P. Positive correlations were found between phosphorus uptake, biomass, and photosynthetic yield. The increased photochemical activity could be due to a significant enhancement in light energy absorbed by the enhanced Chl antenna. The positive effect of adequate P fertilization under salt stress was therefore evident in durum wheat plants.

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“…Including the induction of plant osmoregulation, ion transport, antioxidants and other related genes [16,17,18]. Studies have found that the application of exogenous plant growth regulators under stress can improve plant resistance [19,20,21,22]. Melatonin, a hormone-like substance widely distributed in higher plants, plays an important role in alleviating abiotic stress.…”

Section: Introductionmentioning

confidence: 99%

Exogenous Melatonin Strengthens Saline-alkali Stress Tolerance in M9-T337 Seedlings by Initiating a Variety of Physiological and Biochemical Pathways

Xian,

Zhang,

Wang

et al. 2024

Preprint

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Melatonin (MT) is an important phytohormone that significantly regulates the growth and development of plants. Previous studies confirmed the effectiveness of MT in improving plant stress tolerance. In this study, annual M9-T337 seedlings were selected as subjects and five treatments were applied: conventional control (CK), in which only half the concentration of Hoagland was applied; Saline-alkali stress treatment (SA, 100 mmol·L-1 Saline-alkali solution); melatonin treatment (MT, CK + 200 μmol·L-1 exogenous MT); Saline-alkali + melatonin treatment (MS, SA + 200 μmol·L-1 exogenous MT); and Saline-alkali stress + melatonin + inhibitor treatment (HS, additional 100 μmol·L-1 p-CPA treatment to MS). The results showed that Saline-alkali stress negatively affected the growth of M9-T337 seedlings by reducing photosynthetic capacity, increasing Na+, promoting reactive oxygen species such as H2O2, and changing the osmotic content and antioxidant system. However, the application of exogenous MT effectively alleviated Saline-alkali damage and significantly promoted the growth of M9-T337 seedlings. It significantly increased plant height, diameter, root length, root surface area, volume and activity. Furthermore, MT alleviated osmotic stress by accumulating proline, soluble sugars, soluble proteins and starch. Furthermore, MT improved photosynthetic capacity by delaying chlorophyll degradation and regulating gas exchange parameters as well as fluorescence parameters in leaves. Furthermore, MT improved the Na+/K+ ratio to reduce ion toxicity by upregulating the expression of Na+ transporter genes (MhCAX5, MhCHX15, MhSOS1, and MhALT1) and downregulating the expression of K+ transporter genes (MhSKOR and MhNHX4). In addition, MT can increase antioxidant enzyme activity (SOD, POD, CAT, AAO, APX and MDH) in the ASA-GSH cycle and increase AsA, GSH and GSSG levels to counteract the accumulation of reactive oxygen species (ROS). such as H2O2 and O2-, reducing oxidative damage. Exogenous MT promotes root growth under salt-alkaline stress by increasing root activity and responding synergistically with IAA, GA3 and ZT to salt-alkaline stress. Our results confirm that MT has the potential to alleviate Saline-alkali stress by promoting root growth, increasing biomass accumulation and photosynthetic capacity, strengthening the antioxidant defense system, maintaining ionic balance, the ascorbate-glutathione cycle and the Osmoregulation facilitates and regulates endogenous hormone levels in M9-T337 seedlings.

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Potential of Organic Amendments (AM fungi, PGPR, Vermicompost and Seaweeds) in Combating Salt Stress ... A Review

Cited by 31 publications

References 147 publications

Agro-morphological and biochemical responses of quinoa (Chenopodium quinoa Willd. var: ICBA-Q5) to organic amendments under various salinity conditions

Agro-morphological and biochemical responses of quinoa (Chenopodium quinoa Willd. var: ICBA-Q5) to organic amendments under various salinity conditions

Photosynthetic performance and nutrient uptake under salt stress: Differential responses of wheat plants to contrasting phosphorus forms and rates

Exogenous Melatonin Strengthens Saline-alkali Stress Tolerance in M9-T337 Seedlings by Initiating a Variety of Physiological and Biochemical Pathways

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