Fascinating Dynamics of Silicon in alleviation of heat stress Induced oxidative damage in plants

Kumar, Rajeev; Kumar, Girjesh; Kota, Suneetha; Watts, Archana; Sakhare, Akshay; Kumar, Sudhir; Goswami, Suneha; Kapoor, Neelesh; Babu, Prashant; Mishra, Gyan P.; Kumar, Soora Naresh; Chinnusamy, Viswanathan; Praveen, Shelly

doi:10.1007/s10725-022-00879-w

Cited by 14 publications

(4 citation statements)

References 88 publications

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“…El Si viene siendo uno de los principales elementos que necesitan las plantas para hacer frente a las condiciones ambientales adversas, y se considera un elemento cuasibeneficioso. El Si está involucrado en el crecimiento y la diferenciación de las raíces, el transporte de otros elementos, la asimilación de carbono, en actividades de enzimas clave, quelación de elementos tóxicos, regulación del sistema redox, distribución de fotosíntesis, es decir, tiene efectos directos en la modulación de la tolerancia y estabilización de la cantidad y calidad del grano producido bajo estrés (Kumar et al, 2023). La adición de Si mejoró la eficiencia del uso del agua, la capacidad antioxidante y la tasa fotosintética, la inhibición del cierre de estomas, además, promovió el desarrollo de raíces y reguló aún más la síntesis de hormonas, aminoácidos y azúcares en plántulas de durazno.…”

Section: Silicio Contra El Estrés Hídricounclassified

Qué Deben Saber Los Estudiantes De La Nematología Agrícola

Vera

2023

Avances Científicos Y Tecnológicos en Ciencias Agrícolas

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Editora Direitos para esta edição cedidos à Atena Editora pelos autores. Open access publication by Atena Editora Todo o conteúdo deste livro está licenciado sob uma Licença de Atribuição Creative Commons. Atribuição-Não-Comercial-NãoDerivativos 4.0 Internacional (CC BY-NC-ND 4.0). O conteúdo dos artigos e seus dados em sua forma, correção e confiabilidade são de responsabilidade exclusiva dos autores, inclusive não representam necessariamente a posição oficial da Atena Editora. Permitido o download da obra e o compartilhamento desde que sejam atribuídos créditos aos autores, mas sem a possibilidade de alterála de nenhuma forma ou utilizá-la para fins comerciais.Todos os manuscritos foram previamente submetidos à avaliação cega pelos pares, membros do Conselho Editorial desta Editora, tendo sido aprovados para a publicação com base em critérios de neutralidade e imparcialidade acadêmica.A Atena Editora é comprometida em garantir a integridade editorial em todas as etapas do processo de publicação, evitando plágio, dados ou resultados fraudulentos e impedindo que interesses financeiros comprometam os padrões éticos da publicação. Situações suspeitas de má conduta científica serão investigadas sob o mais alto padrão de rigor acadêmico e ético. Conselho Editorial Ciências Agrárias e Multidisciplinar

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Section: Silicio Contra El Estrés Hídricounclassified

Qué Deben Saber Los Estudiantes De La Nematología Agrícola

Vera

2023

Avances Científicos Y Tecnológicos en Ciencias Agrícolas

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“…An integrated approach using multiple techniques like crop (genetic improvement) and soil management (agronomic) strategies is necessary ( Zafar et al, 2018 ) for imparting thermotolerance in crops. From an agronomic perspective, silicon ( Kumar et al, 2022 ) and beneficial microbe based technologies ( Shekhawat et al, 2022 ) are currently receiving considerable interest as they can be harnessed to provide eco-friendly and cost effective stress mitigating solutions for sustainable heat tolerant crop production systems.…”

Section: Introductionmentioning

confidence: 99%

“…Under abiotic stress conditions ( Farooq and Dietz, 2015 ; Muneer et al, 2017 ; Rahman et al, 2017 ; Hussain et al, 2019 ; Zargar et al, 2019 ; Younis et al, 2020 ), Si acts as a stress alleviator by enhancing membrane integrity and antioxidant defense system through alterations in cellular and biochemical mechanisms. The role of Si in inducing heat stress tolerance in plants ( Tripathi et al, 2017 ; Frew et al, 2018 ; Saha et al, 2021 ; Kumar et al, 2022 ) including agriculturally important crops like rice is well known ( Jinger et al, 2020 ). In rice, tissue Si plays a major role in the growth and productivity of rice through increases in the strength of stems, erectness of leaves, and photosynthetic rate ( Berahim et al, 2021 ) alleviating injurious effect of stresses in rice ( Etesami and Jeong, 2018 ; Mostofa et al, 2021 ).…”

Section: Introductionmentioning

confidence: 99%

Silicate solubilizing and plant growth promoting bacteria interact with biogenic silica to impart heat stress tolerance in rice by modulating physiology and gene expression

Chaganti,

Phule,

Chandran

et al. 2023

Front. Microbiol.

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Heat stress caused due to increasing warming climate has become a severe threat to global food production including rice. Silicon plays a major role in improving growth and productivity of rice by aiding in alleviating heat stress in rice. Soil silicon is only sparingly available to the crops can be made available by silicate solubilizing and plant-growth-promoting bacteria that possess the capacity to solubilize insoluble silicates can increase the availability of soluble silicates in the soil. In addition, plant growth promoting bacteria are known to enhance the tolerance to abiotic stresses of plants, by affecting the biochemical and physiological characteristics of plants. The present study is intended to understand the role of beneficial bacteria viz. Rhizobium sp. IIRR N1 a silicate solublizer and Gluconacetobacter diazotrophicus, a plant growth promoting bacteria and their interaction with insoluble silicate sources on morpho-physiological and molecular attributes of rice (Oryza sativa L.) seedlings after exposure to heat stress in a controlled hydroponic system. Joint inoculation of silicates and both the bacteria increased silicon content in rice tissue, root and shoot biomass, significantly increased the antioxidant enzyme activities (viz. superoxidase dismutase, catalase and ascorbate peroxidase) compared to other treatments with sole application of either silicon or bacteria. The physiological traits (viz. chlorophyll content, relative water content) were also found to be significantly enhanced in presence of silicates and both the bacteria after exposure to heat stress conditions. Expression profiling of shoot and root tissues of rice seedlings revealed that seedlings grown in the presence of silicates and both the bacteria exhibited higher expression of heat shock proteins (HSPs viz., OsHsp90, OsHsp100 and 60 kDa chaperonin), hormone-related genes (OsIAA6) and silicon transporters (OsLsi1 and OsLsi2) as compared to seedlings treated with either silicates or with the bacteria alone. The results thus reveal the interactive effect of combined application of silicates along with bacteria Rhizobium sp. IIRR N1, G. diazotrophicus inoculation not only led to augmented silicon uptake by rice seedlings but also influenced the plant biomass and elicited higher expression of HSPs, hormone-related and silicon transporter genes leading to improved tolerance of seedling to heat stress.

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confidence: 99%

Editorial: Heat stress: response, mitigation, and tolerance in plants

2023

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Heat stress is one of the major problems affecting the growth and yield of most of the agriculturally important crops. It causes oxidative bursts inside the cells, damaging the cell organelles, membranes, and leads to the denaturation/aggregation of enzymes (Kumar et al., 2023). In order to cope with the fluctuation in temperature, plants have developed various mechanisms like the expression of signalling molecules (like MAPK, CDPK, etc.), antioxidant enzymes (SOD, CAT, GPx, etc.), Heat shock transcription factors (TaHSFA6e, HSF3, etc.), heat shock proteins (sHSPs like HSP17, HSP26, etc.) and many other stressassociated genes like pyrrolyl disulphide isomerase, ABC-Transporter, universal stress proteins, etc. (Azameti et al., 2022).This Research Topic has been meticulously organized, featuring thirteen original research articles that have been divided into two broad areas to emphasize the findings in the best possible manner: (1) Response of plants to stress/secondary metabolites or hormones, and (2) Omics approaches for the identification of stress-associated genes and proteins.

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Fascinating Dynamics of Silicon in alleviation of heat stress Induced oxidative damage in plants

Cited by 14 publications

References 88 publications

Qué Deben Saber Los Estudiantes De La Nematología Agrícola

Qué Deben Saber Los Estudiantes De La Nematología Agrícola

Silicate solubilizing and plant growth promoting bacteria interact with biogenic silica to impart heat stress tolerance in rice by modulating physiology and gene expression

Editorial: Heat stress: response, mitigation, and tolerance in plants

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