Drought stress responses and inducing tolerance by seed priming approach in plants

Plant Stress, Год журнала: 2022, Номер 4, С. 100066 - 100066

Опубликована: Фев. 8, 2022

Field crops are subjected to drought at different growth stages and cause for substantial yield loss in major crops, thus threaten global food security. The crop researcher have evaluated numerous physiological, biochemical molecular strategies combat stresses but these approaches not enough present scenario. Therefore, it is argued that plants can be primed by assorted organic in-organic promoters excelling fortitude under stress conditions. Hence, seed priming with agents an auspicious area of research biology management, conferring tolerance when stress. However, the adaptation mechanisms complex quantitative nature, which been explored levels thoroughly this review. concept memory its implication future generation has also discussed. Finally, review challenges opportunities effective application management along expanding knowledge on deep understanding reduce gap discussed thoroughly.

Язык: Английский

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Molecular dynamics of seed priming at the crossroads between basic and applied research

Plant Cell Reports, Год журнала: 2023, Номер 42(4), С. 657 - 688

Опубликована: Фев. 13, 2023

The potential of seed priming is still not fully exploited. Our limited knowledge the molecular dynamics pre-germinative metabolism main hindrance to more effective new-generation techniques. Climate change and other recent global crises are disrupting food security. To cope with current demand for increased food, feed, biofuel production, while preserving sustainability, continuous technological innovation should be provided agri-food sector. Seed priming, a pre-sowing technique used increase vigor, has become valuable tool due its enhance germination stress resilience under changing environments. Successful protocols result from ability properly act on stimulate events that crucial quality. However, requires constant optimization, researchers committed addressing some key open questions overcome such drawbacks. In this review, an update scientific technical related provided. rehydration-dehydration cycle associated treatments can described in terms metabolic pathways triggered, modulated, or turned off, depending physiological stage. Understanding ways affects, either positively negatively, impacts gene expression protein/metabolite accumulation/depletion represents essential step toward identification novel quality hallmarks. need expand basic mechanisms ruling response underlined along strong applied research primed seeds as source This route will hasten implementation techniques needed support sustainable agriculture systems.

Язык: Английский

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Bio-priming of seeds: Plant stress management and its underlying cellular, biochemical and molecular mechanisms

Plant Stress, Год журнала: 2021, Номер 3, С. 100052 - 100052

Опубликована: Дек. 24, 2021

Exposure of crops to stress is the most significant barrier agricultural output and food security worldwide. Stress induces changes in plants' physiological functions, which leads lower plant growth yield. Plants undergo a variety molecular, cellular, combat various abiotic stresses. suffer from increased osmotic pressure outside root due stresses like drought or salt that ultimately result reduced water availability roots. In addition morphological modifications, such as leaf potential, accumulation osmoprotectants, antioxidant activities, so on occur response Seed priming novel yet simple technique involves use beneficial eco-friendly biological agents improve functioning seeds. This also plays vital role restoring agro-ecological balances through improvement soil fertility by decreasing contamination. An understanding mechanisms involved seed bio-priming with growth-promoting microbes very crucial efficiently utilise this towards sustainability. It generally thought advancement metabolic processes along activation repairing systems during pre-germination stage are central reasons behind promotion acquired tolerance. The application rhizobacteria agriculture has been emerging resilience. Bio-priming seeds ensures early protein DNA synthesis, helps effective mitochondrial development. review aims summarise current state technique.

Язык: Английский

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Effects of Combined Abiotic Stresses Related to Climate Change on Root Growth in Crops

Frontiers in Plant Science, Год журнала: 2022, Номер 13

Опубликована: Июль 1, 2022

Climate change is a major threat to crop productivity that negatively affects food security worldwide. Increase in global temperatures are usually accompanied by drought, flooding and changes soil nutrients composition dramatically reduced yields. Against the backdrop of climate change, human population increase subsequent rise demand, finding new solutions for adaptation environmental stresses essential. The effects single abiotic stress on crops have been widely studied, but field tend occur combination rather than individually. Physiological, metabolic molecular responses combined seem be significantly different individual stresses. Although recent years an increasing number studies addressed combinations, information related root system response still scarce. Roots underground organs directly contact with sense many these Understanding combinations would help find breeding tools develop more resilient crops. This review will summarize current knowledge regarding First, we provide general overview particular Then, describe how integrated when challenged stress. We focus main architecture (RSA) physiology influencing yield convey latest key molecular, hormonal genetic regulatory pathways underlying combinatorial Finally, discuss possible directions future research challenges needed tackled translate this into useful enhance tolerance.

Язык: Английский

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Strategies and prospects for biostimulants to alleviate abiotic stress in plants

Frontiers in Plant Science, Год журнала: 2022, Номер 13

Опубликована: Дек. 22, 2022

Global climate change-induced abiotic stresses (e.g., drought, salinity, extreme temperatures, heavy metals, and UV radiation) have destabilized the fragile agroecosystems impaired plant performance thereby reducing crop productivity quality. Biostimulants, as a promising eco-friendly approach, are widely used to address environmental concerns fulfill need for developing sustainable/modern agriculture. Current knowledge revealed that animal derived stimulants seaweeds phytoextracts, humic substances, protein hydrolysate) well microbial beneficial bacteria or fungi) great potential elicit tolerance various thus enhancing growth performance-related parameters (such root growth/diameter, flowering, nutrient use efficiency/translocation, soil water holding capacity, activity). However, successfully implement biostimulant-based agriculture in field under changing climate, understanding of agricultural functions action mechanism biostimulants coping with at physicochemical, metabolic, molecular levels is needed. Therefore, this review attempts unravel underlying mechanisms mediated by diverse relation stress alleviation discuss current challenges their commercialization implementation conditions.

Язык: Английский

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Unlocking PGPR-Mediated Abiotic Stress Tolerance: What Lies Beneath

Frontiers in Sustainable Food Systems, Год журнала: 2022, Номер 6

Опубликована: Фев. 18, 2022

In the forthcoming era of climate change and ecosystem degradation, fostering use beneficial microbiota in agroecosystems represents a major challenge toward sustainability. Some plant-associated bacteria, called Plant Growth Promoting Rhizobacteria (PGPR), may confer growth-promoting advantages to plant host, through enhancing nutrient uptake, altering hormone homeostasis, and/or improving tolerance abiotic stress factors phytopathogens. this regard, exploring key ecological evolutionary interactions between plants their microbiomes is perquisite develop innovative approaches novel natural products that will complement conventional farming techniques. Recently, details molecular aspects PGPR-mediated various have come light. At same time integration recent advances field plant-microbiome crosstalk with -omic soon allow us holistic approach “prime” against unfavorable environments. This mini review highlights current state art on seed biopriming, focusing identification application PGPR cultivated species under conditions where crop productivity limited. The potential challenges commercializing these as biostimulants improve production multiple environmental constraints growth, well concerns about impact ecosystems, are also discussed.

Язык: Английский

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Activating stress memory: eustressors as potential tools for plant breeding

Plant Cell Reports, Год журнала: 2022, Номер 41(7), С. 1481 - 1498

Опубликована: Март 19, 2022

Язык: Английский

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Seed priming can enhance and retain stress tolerance in ensuing generations by inducing epigenetic changes and trans‐generational memory

Physiologia Plantarum, Год журнала: 2023, Номер 175(2)

Опубликована: Фев. 25, 2023

Abstract The significance of priming in enhancing abiotic stress tolerance is well‐established several important crops. Priming positively impacts plant growth and improves at multiple developmental stages, seed one the most used methods. Seed influences pre‐germinative metabolism that ensures proper germination, early seedling establishment, enhanced yield, even under unfavourable environmental conditions. involves pre‐exposure seeds to mild stress, this pre‐treatment induces specific changes physiological molecular levels. Interestingly, can improve efficiency DNA repair mechanism, along with activation signalling proteins transcription factors for rapid efficient tolerance. Notably, such acquired may be retained longer duration, namely, later stages or subsequent generations. Epigenetic chromatin‐based mechanisms as methylation, histone modifications, nucleosome positioning are some key involved priming/stress memory. Further, retention induced epigenetic influence priming‐induced trans‐generational This review discusses known plausible govern germination memory within across generations, highlighting their role regulating response stresses. Understanding mechanism stress‐responsive genes resulting from will help resiliency crops productivity extreme environments.

Язык: Английский

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Advances in the molecular regulation of seed germination in plants

Seed Biology, Год журнала: 2024, Номер 3(1), С. 0 - 0

Опубликована: Янв. 1, 2024

Seed germination is a key process in the life cycle of seed plants. The initiation requires activity specific internal signaling molecules, such as hormones and reactive oxygen species (ROS), dependent on external environmental factors, water, temperature, light. complex trait that regulated by multiple including transcript, protein, metabolite levels. This review highlights current knowledge relating to regulatory roles hormones, ROS, small RNAs, epigenetic modifications, post-translational cues germination, mainly focusing Arabidopsis rice. molecular regulation contributes improvement crop quality using bio-breeding approaches.

Язык: Английский

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Osmopriming with Polyethylene Glycol (PEG) for Abiotic Stress Tolerance in Germinating Crop Seeds: A Review

Agronomy, Год журнала: 2021, Номер 11(11), С. 2194 - 2194

Опубликована: Окт. 30, 2021

Abiotic stresses such as drought, extreme temperature, and salinity can negatively impact seed germination plant growth have become major limitations to crop production. Most crops are vulnerable abiotic stress factors during their early phase, especially seedling emergence. Rapid establishment is known provide competitive advantages over weeds improve yields. Seed osmopriming defined a pre-sowing treatment in which seeds soaked osmotic solutions undergo the first stage of germination, but radicle protrusion has not occurred. The process involves prior exposure low-water-potential solutions. Osmopriming generate series pre-germination metabolic activities, increase antioxidant system prepare for protrusion. Polyethylene glycol (PEG) popular agent that alleviate negative impacts stresses. This review summarizes research findings on responses priming with PEG under challenges, limitations, opportunities using discussed goal providing insights into future towards effective application

Язык: Английский

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