Alleviation of drought stress in maize (<i>Zea mays</i> L.) by using endogenous endophyte <i>Bacillus subtilis</i> in North West Himalayas

Sood, Gaurav; Kaushal, Rajesh; Sharma, Minakshi

doi:10.1080/09064710.2020.1743749

Cited by 15 publications

(8 citation statements)

References 26 publications

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“…They are often seen to have a significant influence on the plant's physiological reactions due to their close immediacy with the host plant (Bodhankar et al 2020). Though endophytic and rhizobacteria bacteria exist in varying ecological niches, their utilisation of comparable mechanisms to stimulate plant growth is noteworthy (Sood et al 2020). They cause maize plants to survive drought stress to attain sustainable productivity by lessening the ethylene concentrations (Dhayalan & Sudalaimuthu 2021).…”

Section: Azospir Illum Lipoferum Andmentioning

confidence: 99%

Endophytic and rhizobacteria functionalities in alleviating drought stress in maize plants

Agunbiade¹,

Babalola²

2023

Plant Prot. Sci.

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Drought stress is among the significant forms of abiotic stresses that unfavourably affects maize survival as well as the development from germination to maturity. This paper, therefore, reviewed drought stress effects in maize plants and expatiated on the plausible adoptable mitigation measures to employ in curbing these effects as well. Water shortage prompts drought stress that alters the morphological, physiological and biochemical activities in maize plants.The major drought stress implications on the plant's survival are mostly in the area of altered metabolic functions, including nutrient metabolism, cell membrane integrity, water relationships, plant yield, photosynthetic processes, osmotic adjustment, and the pigment content. Mitigating strategies, such as the breeding of drought-tolerant varieties, genomic applications for drought tolerance enhancement in maize plants, as well as the use of rhizobacteria and endophytic bacteria, can be employed in alleviating drought stress and ensuring optimal maize productivity.

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Section: Azospir Illum Lipoferum Andmentioning

confidence: 99%

Endophytic and rhizobacteria functionalities in alleviating drought stress in maize plants

Agunbiade¹,

Babalola²

2023

Plant Prot. Sci.

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“…This study suggested that PGPR minimise the adverse effects of drought by inducing biochemical changes that contribute to mitigating drought stress (Singh et al 2020). Bacillus subtilis was shown to reduce the ROS by activating the production of enzymatic antioxidants in Z. mays (Sood et al 2020). Bacillus xiamenensis induces systematic resistance in S. officinarum by osmotic adjustment, synthesis of antioxidant enzymes and hydrogen cyanide production (Amna et al 2020).…”

Section: Role In Triggering Antioxidant Defence Mechanisms Against Re...mentioning

confidence: 90%

“…2020). Bacillus subtilis was shown to reduce the ROS by activating the production of enzymatic antioxidants in Z. mays (Sood et al . 2020).…”

Section: Role In Triggering Antioxidant Defence Mechanisms Against Re...mentioning

confidence: 99%

Induction of regulatory mechanisms by plant growth promoting rhizobacteria in crops facing drought stress

Tanveer

Ilyas

Akhtar

et al. 2023

Crop & Pasture Science

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Climate change and global warming are leading to severe drought stress, causing damage to crops in different regions of the world. Drought stress is an abiotic stress that interferes with major metabolic pathways, influencing mainly morphological, physiological and biochemical parameters of plants, ultimately resulting in decreased growth and yield of crops. Plants should be able to utilise available moisture efficiently, and there is a need to focus on organic and eco-friendly methods for improving crops facing drought stress. A practical approach for enhancing growth and development under stressful conditions is the application of plant growth promoting rhizobacteria (PGPR), soil microbes that help plants to cope with extreme ecological conditions. This review aims to highlight the function of various PGPR metabolites that help to mitigate water-deficit conditions. These microbes exist naturally in the rhizosphere of plants, and they enhance plant growth by several direct mechanisms such as aminocyclopropane-1-carboxylate deaminase and osmolyte production, secretion of exopolysaccharides and phytohormones, triggering of antioxidant defence mechanisms against reactive oxygen species and production of volatile organic compounds, as well as by indirect mechanisms including enhancing induced systemic resistance and pathogen suppression. This review recommends the use of PGPR for improving growth and development of crops under drought stress and supports their role as effective and sustainable bioinoculants for enhancing the growth and production of crops.

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“…(5) regulating the expression of functional genes and the activity of functional proteins (Zhang et al, 2021). It has been widely confirmed that inoculating plants with PGPR can improve drought-resistance in diverse crops, such as maize (Sood et al, 2020), rice (Kakar et al, 2016), millet (Niu et al, 2018), wheat (Gontia-Mishra et al, 2016), and sugarcane (Chandra et al, 2018). Under the effect of PGPR, growth indicators of various plants always show different levels of improvement, such as more developed root systems, increased above-ground biomass accumulation, improved photosynthesis, and reduced oxidative damage.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, PGPR primarily promote plants drought‐resistance by: (1) improving plant antioxidant capacity to protect them from oxidative damage (Batool et al, 2020), (2) protecting the photosynthetic system and maintaining plant photosynthetic efficiency (Liu et al, 2019), (3) modifying the structures of roots and leaves to promote water absorption and transport (Jochum et al, 2019), (4) regulating the processes of nutrient and energy metabolism (Jabborova et al, 2021), and (5) regulating the expression of functional genes and the activity of functional proteins (Zhang et al, 2021). It has been widely confirmed that inoculating plants with PGPR can improve drought‐resistance in diverse crops, such as maize (Sood et al, 2020), rice (Kakar et al, 2016), millet (Niu et al, 2018), wheat (Gontia‐Mishra et al, 2016), and sugarcane (Chandra et al, 2018). Under the effect of PGPR, growth indicators of various plants always show different levels of improvement, such as more developed root systems, increased above‐ground biomass accumulation, improved photosynthesis, and reduced oxidative damage.…”

Section: Introductionmentioning

confidence: 99%

A meta‐analysis on morphological, physiological and biochemical responses of plants with PGPR inoculation under drought stress

Zhao

Yuan

Xing

et al. 2022

Plant Cell & Environment

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Plant growth‐promoting rhizobacteria (PGPR) can help plants to resist drought stress. However, the mechanisms of how PGPR inoculation affect plant status under drought remain incompletely understood. We performed a meta‐analysis of plant response to PGPR inoculation by compiling data from 57 PGPR‐inoculation studies, including 2, 387 paired observations on morphological, physiological and biochemical parameters under drought and well‐watered conditions. We compare the PGPR effect on plants performances among different groups of controls and treatments. Our results reveal that PGPR enables plants to restore themselves from drought‐stressed to near a well‐watered state, and that C4 plants recover better from drought stress than C3 plants. Furthermore, PGPR is more effective underdrought than well‐watered conditions in increasing plant biomass, enhancing photosynthesis and inhibiting oxidant damage, and the responses of C4 plants to the PGPR effect was stronger than that of C3 plants under drought conditions. Additionally, PGPR belonging to different taxa and PGPR with different functional traits have varying degrees of drought‐resistance effects on plants. These results are important to improve our understanding of the PGPR beneficial effects on enhanced drought‐resistance of plants.

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Alleviation of drought stress in maize (Zea mays L.) by using endogenous endophyte Bacillus subtilis in North West Himalayas

Cited by 15 publications

References 26 publications

Endophytic and rhizobacteria functionalities in alleviating drought stress in maize plants

Endophytic and rhizobacteria functionalities in alleviating drought stress in maize plants

Induction of regulatory mechanisms by plant growth promoting rhizobacteria in crops facing drought stress

A meta‐analysis on morphological, physiological and biochemical responses of plants with PGPR inoculation under drought stress

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