Influence of drought stress and brassinosteroid on growth and Physio-biochemical characteristics of apple plants

Kumari, Sudarshna; Thakur, Anju; Singh, Niranjan; Chandel, J. S.; Rana, Neerja

doi:10.5958/0974-0112.2020.00007.9

Cited by 5 publications

(3 citation statements)

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“…Transpiration rate was also found to decrease under water stress conditions [88]. Foliar spray of BR (0.05 ppm) before the imposition of stress minimized the deleterious effects of water stress on apple plants [54].…”

Section: Applementioning

confidence: 91%

Scientific Study of Brassinosteroids on Production of Fruit Crops: A Review

B. N.,

Bhaskar,

Sethunath

et al. 2024

IJPSS

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Brassinosteroids (BRs) are considered as the sixth group of plant growth regulators with significant growth promoting activity in many horticulture and agriculture crops. This phytohormone was discovered from the pollen of Brassica napus L. on the basis of their ability to promote growth. Currently, more than 70 BRs have been isolated from different plant species, but only three viz., Brassinolide (BL), 24-Epibrassinolide (EBL) and 28-Homobrassinolide (HBL) are found to be the most biologically active forms and extensively used in various crops. They are eco-friendly, effective at very low concentration, cost effective and almost always have synergetic effect when interacts with other phytohormones. Owing to diverse physiological roles and cross talk with other hormones influence on plant growth and development, they are being collectively referred as ‘pleiotropic phytohormone’. Although, BRs were discovered towards the end of twentieth century, but the dynamic applications and outcomes were reported mainly during the inception of twenty first century, hence BRs were termed as ‘hormone of the twenty-first century’. The application of BRs at different growth stages have been reported to positively influences such as nutrients uptakes, growth, yield and quality attributes on many fruit crops which includes tropical, sub-tropical and temperate fruit crops at very low concentrations have great roles in terms of growth, yield, fruit quality and stress tolerance mechanisms, which results to lucrative adventure of farming community. This review article will provide an elucidated insight into the application of BR in different fruit crops.

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Section: Applementioning

confidence: 91%

Scientific Study of Brassinosteroids on Production of Fruit Crops: A Review

B. N.,

Bhaskar,

Sethunath

et al. 2024

IJPSS

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“…Se ha reportado que la aplicación exógena de BR y análogos (24-Epibrassinolide -EBR) en frutales bajo estrés por déficit hídrico, aumenta la actividad de enzimas antioxidantes como Ascorbato Peroxidasa (APX), Glutatión Peroxidasa (GR), Catalasa (CAT), Superóxido Dismutasa (SOD) y Peroxidasa (POD), lo que genera una marcada reducción del daño por la producción de ROS a causa de la disminución del contenido de malondialdehido (MDA) y peróxido de hidrógeno (H2O2) como se ha reportado en plantas de lulo (Castañeda et al, 2022), banano (Helaly et al, 2022), durazno (Wang et al, 2019a), vid (Wang et al, 2019b) y kiwi (Xia et al, 2022). En experimentos realizados en manzano (Malus domestica) sometidos a déficit hídrico, se identificó que la aplicación foliar de brasinoesteroides aumentó los contenidos de prolina en la hoja, situación que le permite una mejor respuesta al estrés abiótico (Kumari y Thakur, 2019a,b;Kumari et al, 2020). Similar comportamiento presentaron las plantas de duraznero (Prunus persicae L.), expuestas a condiciones de déficit hídrico bajo la aplicación de EBR que aumentó considerablemente las enzimas antioxidantes y la prolina, a pesar de no aumentar la tasa de fotosíntesis neta ni la conductancia (Wang et al, 2019a).…”

Section: Influencia De Brasinoesteroides En El Metabolismo De Frutale...unclassified

Rol de los brasinoesteroides en frutales con énfasis en condiciones de estrés abiótico: Una revisión

Rodríguez

López

et al. 2022

Cien. Agri.

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El cambio climático puede causar eventos de estrés en los cultivos, principalmente por los cambios generados sobre la precipitación y la temperatura. Dentro de los cultivos que se ven afectados se encuentran los frutales, un grupo de especies de gran importancia por su valor nutritivo en la dieta humana. Estas especies se pueden ver afectados por condiciones de estrés abiótico debido a cambios en la disponibilidad hídrica, la temperatura y la radiación. Por esta razón se han generado distintas alternativas que podrían mitigar dicha afectación, como la aplicación exógena de brasinoesteroides (BR). Los BR desempeñan un papel importante en el crecimiento y desarrollo de las plantas, además está involucrado en la respuesta de las plantas al estrés abiótico por medio de la regulación en la concentración de solutos, apertura estomática, protección del aparato fotosintético y el aumento de la capacidad antioxidante, principalmente. Este artículo de revisión busca sintetizar el papel de los brasinoesteroides en el crecimiento y desarrollo de los frutales, así como la función que desempeñan en la respuesta a condiciones de estrés abiótico, expresión génica y balance hormonal.

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“…BRs mainly include brassinolide (BR), epibrassinolide (EBR), and high brassinolide (HBR). Due to its strong physiological activity on plant growth and development, 24-epibrassinolide (24-EBL) has been widely used in agricultural production [14,15]. In the process of adversity or gradual senescence of plants, BRs can maintain chlorophyll content and improve crop resistance and product quality by promoting the expression levels of chlorophyll biosynthesis and recycling genes, such as CHLD and CHL, and by inhibiting the up-regulation of chlorophyll degradation genes, such as HCAR and PPH [16,17].…”

Section: Introductionmentioning

confidence: 99%

Effects of Exogenous 24-Epibrassinolide Leaves Spraying Application on Chlorophyll Accumulation and Gene Expression Profiles of Chlorophyll Metabolism in Celery

Chen,

Wang,

et al. 2023

Horticulturae

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Celery is an important leaf vegetable crop in Apiaceae, of which the petiole and leaf blade are the main edible parts. The content and proportion of photosynthetic pigments, mainly chlorophyll, have an important effect on the growth and quality of celery. As a brassinosteroid (BR) plant hormone with high physiological activity, 24-epibrassinolide (24-EBL) has the physiological functions of promoting chlorophyll accumulation and delaying leaf senescence. To investigate the effects of 24-EBL treatment on chlorophyll accumulation at different growth stages of celery, celery plants (variety Ningqin NO. 1) were treated from 45~59 days after sowing (DAS), at intervals of 7 days, with two different concentrations of 24-EBL: 1.04 × 10−6 mol·L−1 and 1.67 × 10−6 mol·L−1. The content of chlorophyll and the expression levels of genes related to its metabolism were determined in celery leaf blades and petioles at three different stages (52, 59, 66 DAS). In the first stage (52 DAS), 1.04 × 10−6 mol·L−1 treatment of 24-EBL increased the expression levels of genes related to chlorophyll biosynthesis (AgHEML, AgCHLG, and AgCAO) to promote the accumulation of chlorophyll in leaf blades. During the second and third stages (59 and 66 DAS, respectively), 1.67 × 10−6 mol·L−1 24-EBL treatment induced the expression levels of genes related to chlorophyll cyclic regeneration (AgCLH) and inhibited the up-regulation of genes related to chlorophyll degradation (AgNYC, AgHCAR, and AgPPH) to promote chlorophyll (especially chlorophyll b) accumulation. These treatments regulated the ratio of chlorophyll a content to chlorophyll b content and changed the leaf color of the celery. The results show that leaf spraying with an appropriate concentration of 24-EBL can facilitate chlorophyll synthesis by promoting chlorophyll synthesis and cycling-related gene expression levels and increase chlorophyll content in the leaves of celery. This study provides a reference for exploring the specific function of 24-EBL in regulating chlorophyll content during the growth and development of celery.

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Influence of drought stress and brassinosteroid on growth and Physio-biochemical characteristics of apple plants

Cited by 5 publications

References 0 publications

Scientific Study of Brassinosteroids on Production of Fruit Crops: A Review

Scientific Study of Brassinosteroids on Production of Fruit Crops: A Review

Rol de los brasinoesteroides en frutales con énfasis en condiciones de estrés abiótico: Una revisión

Effects of Exogenous 24-Epibrassinolide Leaves Spraying Application on Chlorophyll Accumulation and Gene Expression Profiles of Chlorophyll Metabolism in Celery

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