Enhancing quinoa growth under severe saline-alkali stress by phosphate solubilizing microorganism Penicillium funicuiosum P1

Jin, Fengyuan; Hu, Qilin; Zhao, Yanwen; Lin, Xiaoyu; Zhang, Jianfeng; Zhang, Jiejing

doi:10.1371/journal.pone.0273459

Cited by 18 publications

(2 citation statements)

References 67 publications

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“…Zhang et al [42] found that saline-alkali stress significantly reduced wheat leaf photosynthetic parameters and chlorophyll content, inhibiting their photosynthesis and affecting plant growth. Similar findings have been reported in quinoa [43] and maize [44]. In this study, a simultaneous reduction in Gs and Ci was found.…”

Section: Mt Treatment Effects On Photosynthetic Physiologysupporting

confidence: 92%

The Physiological Mechanism of Melatonin Enhancing the Tolerance of Oat Seedlings under Saline–Alkali Stress

Wang,

Liang,

Xiang

et al. 2023

Agronomy

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Exogenous melatonin (MT) regulates plant growth and mitigates stress in response to stress. To analyze the machinery of exogenous melatonin, which improves salt and alkaline tolerance in oats, MT’s function was identified in the oat seed germination stage in our previous study. In this study, morphogenesis, photosynthetic physiology, hormone levels, and ion homeostasis were evaluated using the same MT treatment concentration. The results revealed that compared to the S45 treatment, the 100 μmol·L−1 MT treatment efficiently increased the seedling height and main root length of oat seedlings; promoted secondary root development; enhanced the root volume and root surface area; maintained a higher photosynthetic pigment content (carotenoids; chlorophyll a; chlorophyll b); raised the leaf photosynthetic rate (Pn), intercellular CO2 concentration (Ci), conductance to H2O (Gs), and transpiration rate (Tr); enhanced the light energy absorption and conversion of leaves; increased the leaf GA3, Tryptamine (TAM), and IAA contents; and decreased ABA levels. Hierarchical cluster analysis revealed that MT treatment also increased the contents of P, K, Ca, Mn, Cu, Mg, Fe, Zn, Mo, Cd, Al, Se, Ni, Co, and Ti; decreased the Na/K ratio; and maintained cellular ionic homeostasis in oat seedlings under saline–alkali stress, as compared with the untreated group. These findings showed that MT treatment enhanced the adaptation of oat to saline–alkali stress through regulating the physiological process of seedling growth. This suggests that MT plays a different role in improving saline–alkali tolerance in the germination and seedling stages of oat.

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Section: Mt Treatment Effects On Photosynthetic Physiologysupporting

confidence: 92%

The Physiological Mechanism of Melatonin Enhancing the Tolerance of Oat Seedlings under Saline–Alkali Stress

Wang,

Liang,

Xiang

et al. 2023

Agronomy

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“…strains can alleviate plant salt stress (Leitão & Enguita, 2016 ) (Table 1 ). This is the case of Penicillium funiculosum P1, which improved the growth of quinoa plants under severe saline‐alkali stress (Jin et al., 2022 ), or a halotolerant endophytic strain of Penicillium chrysogenum which, when inoculated to tomato plants, promoted their growth even though they were irrigated with a 300 mM saline solution for almost 10 weeks (Morsy et al., 2020 ). Similarly, inoculation of lettuce seedlings with two psychrotolerant root‐fungal endophytes, Penicillium brevicompactum KJ881370 and P. chrysogenum KJ881371, isolated from Antarctic plants, enhanced their survival under saline conditions, and also increased drought tolerance and water use efficiency (Molina‐Montenegro et al., 2016 , 2020 ).…”

Section: Fungal Plant Probiotics and Extreme Environmentsmentioning

confidence: 99%

Fungi beyond limits: The agricultural promise of extremophiles

Zenteno‐Alegría,

Yarzábal Rodríguez,

Ciancas Jiménez

et al. 2024

Microbial Biotechnology

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Global climate changes threaten food security, necessitating urgent measures to enhance agricultural productivity and expand it into areas less for agronomy. This challenge is crucial in achieving Sustainable Development Goal 2 (Zero Hunger). Plant growth‐promoting microorganisms (PGPM), bacteria and fungi, emerge as a promising solution to mitigate the impact of climate extremes on agriculture. The concept of the plant holobiont, encompassing the plant host and its symbiotic microbiota, underscores the intricate relationships with a diverse microbial community. PGPM, residing in the rhizosphere, phyllosphere, and endosphere, play vital roles in nutrient solubilization, nitrogen fixation, and biocontrol of pathogens. Novel ecological functions, including epigenetic modifications and suppression of virulence genes, extend our understanding of PGPM strategies. The diverse roles of PGPM as biofertilizers, biocontrollers, biomodulators, and more contribute to sustainable agriculture and environmental resilience. Despite fungi's remarkable plant growth‐promoting functions, their potential is often overshadowed compared to bacteria. Arbuscular mycorrhizal fungi (AMF) form a mutualistic symbiosis with many terrestrial plants, enhancing plant nutrition, growth, and stress resistance. Other fungi, including filamentous, yeasts, and polymorphic, from endophytic, to saprophytic, offer unique attributes such as ubiquity, morphology, and endurance in harsh environments, positioning them as exceptional plant growth‐promoting fungi (PGPF). Crops frequently face abiotic stresses like salinity, drought, high UV doses and extreme temperatures. Some extremotolerant fungi, including strains from genera like Trichoderma, Penicillium, Fusarium, and others, have been studied for their beneficial interactions with plants. Presented examples of their capabilities in alleviating salinity, drought, and other stresses underscore their potential applications in agriculture. In this context, extremotolerant and extremophilic fungi populating extreme natural environments are muchless investigated. They represent both new challenges and opportunities. As the global climate evolves, understanding and harnessing the intricate mechanisms of fungal‐plant interactions, especially in extreme environments, is paramount for developing effective and safe plant probiotics and using fungi as biocontrollers against phytopathogens. Thorough assessments, comprehensive methodologies, and a cautious approach are crucial for leveraging the benefits of extremophilic fungi in the changing landscape of global agriculture, ensuring food security in the face of climate challenges.

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Hydrochar Utilization for Saline‐Alkali Soil Amelioration and Its Carbon Sequestration Potential Assessment

Shen,

Jiang,

Tang

et al. 2024

Advanced Sustainable Systems

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For the current situation of saline‐alkali soil amelioration, it is urgent to explore a multi‐objective amelioration strategy involving crop income increase and environmental benefits. This study used pine‐needle hydrochar to ameliorate saline‐alkali soil and conducted column and pot experiments to investigate its effects on soil properties and crop growth. And the environmental advantages of hydrochar are evaluated through Life Cycle Assessment (LCA). The electrical conductivity, exchangeable sodium percentage, and pH of saline‐alkali soil ameliorated with hydrochar using the column elution method are reduced by 60%, 58%, and 1.2 pH units, respectively, compared to the original soil. Also, the gene copy number of the ameliorated soil has doubled according to qPCR determination. Pot experiment results show that the root length, fresh weight, and germination rate of wheatgrass are increased by 107, 75, and 20%, respectively. These results demonstrated that the exchange of Na+ with H+ released from hydrochar reduced the soil alkalinity and the viability of organisms is enhanced. Moreover, based on this study's data including the hydrochar dosage and wheatgrass yield, the LCA results showed 3.7 × 109 t CO2e carbon sequestration potential and significant environmental benefits.

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Enhancing quinoa growth under severe saline-alkali stress by phosphate solubilizing microorganism Penicillium funicuiosum P1

Cited by 18 publications

References 67 publications

The Physiological Mechanism of Melatonin Enhancing the Tolerance of Oat Seedlings under Saline–Alkali Stress

The Physiological Mechanism of Melatonin Enhancing the Tolerance of Oat Seedlings under Saline–Alkali Stress

Fungi beyond limits: The agricultural promise of extremophiles

Hydrochar Utilization for Saline‐Alkali Soil Amelioration and Its Carbon Sequestration Potential Assessment

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