Stomatal Closure Sets in Motion Long-Term Strategies of Plant Defense Against Microbial Pathogens

Gahir, Shashibhushan; Bharath, Pulimamidi; Raghavendra, Agepati S.

doi:10.3389/fpls.2021.761952

Cited by 10 publications

(9 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The drought‐induced decline in protein synthesis further compromises the plant's defence budget (Zia et al, 2021). Stomatal closure also reduces intercellular CO 2 and transpiration, and increases leaf temperature (Gahir et al, 2021). This elevated temperature can accelerate the deterioration of plant disease resistance in various plant–pathogen systems (Venkatesh & Kang, 2019; Zhu et al, 2010).…”

Section: Drought and Pathogens: A Perilous Combination Or A Concealed...mentioning

confidence: 99%

Drought: A context‐dependent damper and aggravator of plant diseases

Choudhary,

Senthil‐Kumar

2024

Plant Cell & Environment

View full text Add to dashboard Cite

Drought dynamically influences the interactions between plants and pathogens, thereby affecting disease outbreaks. Understanding the intricate mechanistic aspects of the multiscale interactions among plants, pathogens, and the environment—known as the disease triangle—is paramount for enhancing the climate resilience of crop plants. In this review, we systematically compile and comprehensively analyse current knowledge on the influence of drought on the severity of plant diseases. We emphasise that studying these stresses in isolation is not sufficient to predict how plants respond to combined stress from both drought and pathogens. The impact of drought and pathogens on plants is complex and multifaceted, encompassing the activation of antagonistic signalling cascades in response to stress factors. The nature, intensity, and temporality of drought and pathogen stress occurrence significantly influence the outcome of diseases. We delineate the drought‐sensitive nodes of plant immunity and highlight the emerging points of crosstalk between drought and defence signalling under combined stress. The limited mechanistic understanding of these interactions is acknowledged as a key research gap in this area. The information synthesised herein will be crucial for crafting strategies for the accurate prediction and mitigation of future crop disease risks, particularly in the context of a changing climate.

show abstract

Section: Drought and Pathogens: A Perilous Combination Or A Concealed...mentioning

confidence: 99%

Drought: A context‐dependent damper and aggravator of plant diseases

Choudhary,

Senthil‐Kumar

2024

Plant Cell & Environment

View full text Add to dashboard Cite

show abstract

“…As mentioned above, under stress such as drought, certain Bacillus strains provide drought resilience by synthesizing the stress hormone abscisic acid, which triggers adaptive water-conserving responses in plants like stomatal closure to reduce water loss through transpiration. They also form exopolysaccharide biofilms that help retain soil moisture and prevent desiccation [17] . For salinity tolerance, Bacillus equip plants through production of the enzyme, 1-aminocyclopropane-1-carboxylate (ACC) deaminase, which cleaves the ethylene precursor ACC to lower deleterious ethylene levels induced by high salts.…”

Section: Biocontrol Mechanism Of Bacillus Species ...mentioning

confidence: 99%

Perspective on utilization of <i>Bacillus</i> species as plant probiotics for different crops in adverse conditions

Singh,

Shyu

2024

AIMSMICRO

View full text Add to dashboard Cite

<abstract> <p>Plant probiotic bacteria are a versatile group of bacteria isolated from different environmental sources to improve plant productivity and immunity. The potential of plant probiotic-based formulations is successfully seen as growth enhancement in economically important plants. For instance, endophytic <italic>Bacillus</italic> species acted as plant growth-promoting bacteria, influenced crops such as cowpea and lady's finger, and increased phytochemicals in crops such as high antioxidant content in tomato fruits. The present review aims to summarize the studies of <italic>Bacillus</italic> species retaining probiotic properties and compare them with the conventional fertilizers on the market. Plant probiotics aim to take over the world since it is the time to rejuvenate and restore the soil and achieve sustainable development goals for the future. Comprehensive coverage of all the <italic>Bacillus</italic> species used to maintain plant health, promote plant growth, and fight against pathogens is crucial for establishing sustainable agriculture to face global change. Additionally, it will give the latest insight into this multifunctional agent with a detailed biocontrol mechanism and explore the antagonistic effects of <italic>Bacillus</italic> species in different crops.</p> </abstract>

show abstract

“…During photorespiration, the enzyme Rubisco will oxygenate ribulose-1,5-bisphosphate (RuBP) to produce glycerate-3-phosphate, and 2-phosphoglycolate. As a result, photorespiration decreases the efficiency of photosynthesis and produces reactive oxygen species (ROS) such as such as O 2 - , O 2 1 , H 2 O 2 , RO and OH - that can damage membranes and enzymes ( Chastain et al., 2014 ; Gahir et al., 2021 ). In addition to photorespiration, reduced CO 2 fixation under drought also leads to an accumulation of photons as the plant is still harvesting light regardless of lower photosynthetic rate to utilize the light energy.…”

Section: Impact Of Drought On the Physiological And Biochemical Perfo...mentioning

confidence: 99%

Review on blueberry drought tolerance from the perspective of cultivar improvement

Ru,

Sanz-Saez,

Leisner

et al. 2024

Front. Plant Sci.

View full text Add to dashboard Cite

Blueberry (Vaccinium spp.) is an increasingly popular fruit around the world for their attractive taste, appearance, and most importantly their many health benefits. Global blueberry production was valued at $2.31 billion with the United States alone producing $1.02 billion of cultivated blueberries in 2021. The sustainability of blueberry production is increasingly threatened by more frequent and extreme drought events caused by climate change. Blueberry is especially prone to adverse effects from drought events due to their superficial root system and lack of root hairs, which limit blueberry’s ability to intake water and nutrients from the soil especially under drought stress conditions. The goal of this paper is to review previous studies on blueberry drought tolerance focusing on physiological, biochemical, and molecular drought tolerance mechanisms, as well as genetic variability present in cultivated blueberries. We also discuss limitations of previous studies and potential directions for future efforts to develop drought-tolerant blueberry cultivars. Our review showed that the following areas are lacking in blueberry drought tolerance research: studies of root and fruit traits related to drought tolerance, large-scale cultivar screening, efforts to understand the genetic architecture of drought tolerance, tools for molecular-assisted drought tolerance improvement, and high-throughput phenotyping capability for efficient cultivar screening. Future research should be devoted to following areas: (1) drought tolerance evaluation to include a broader range of traits, such as root architecture and fruit-related performance under drought stress, to establish stronger association between physiological and molecular signals with drought tolerance mechanisms; (2) large-scale drought tolerance screening across diverse blueberry germplasm to uncover various drought tolerance mechanisms and valuable genetic resources; (3) high-throughput phenotyping tools for drought-related traits to enhance the efficiency and affordability of drought phenotyping; (4) identification of genetic architecture of drought tolerance using various mapping technologies and transcriptome analysis; (5) tools for molecular-assisted breeding for drought tolerance, such as marker-assisted selection and genomic selection, and (6) investigation of the interactions between drought and other stresses such as heat to develop stress resilient genotypes.

show abstract

Stomatal Closure Sets in Motion Long-Term Strategies of Plant Defense Against Microbial Pathogens

Cited by 10 publications

References 69 publications

Drought: A context‐dependent damper and aggravator of plant diseases

Drought: A context‐dependent damper and aggravator of plant diseases

Perspective on utilization of <i>Bacillus</i> species as plant probiotics for different crops in adverse conditions

Review on blueberry drought tolerance from the perspective of cultivar improvement

Contact Info

Product

Resources

About