Seed priming-induced physiochemical and molecular events in plants coupled to abiotic stress tolerance: An overview

Sen, Akhila; Puthur, Jos T.

doi:10.1016/b978-0-12-817892-8.00018-0

Cited by 18 publications

(11 citation statements)

References 57 publications

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“…As a result, oxidative stress associated with most abiotic stresses is reduced. In addition, the synthesis of genes and proteins involved in water transport and translocation, changes in the cell wall structure, cytoskeleton, and cell division are accelerated [24]. In this regard, some studies have shown that priming may involve heritable epigenetic changes [25] This plant's innate defense system is induced by several inorganic or organic molecules and various biological stimulants to protect plants from the resulting stress.…”

Section: Discussionmentioning

confidence: 99%

Effect of Different Priming Methods on Seed Viability and Seedling Growth of Upland Rice under Drought Stress

Kadir¹,

Darwisah²,

Yassin³

et al. 2023

AJAHR

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This study aims to determine the effect of different priming methods on the viability and early growth of upland rice under drought stress. Priming is an important approach to improve the resistance of upland rice plants to drought stress from the germination phase to growth, especially on sub-optimal land. There are several efficient priming methods as seed pretreatment to increase germination and tolerance to drought stress. An effective priming method is needed to increase the germination and growth of upland rice seedlings for application in dryland agriculture. Therefore, an experiment was conducted at the Seed laboratory of Pangkep State Polytechnic of Agriculture, Indonesia, from September to October of 2022 to investigate the effect of several priming methods on the germination and growth of upland rice seedlings under drought stress. The experiment consisted of 2 stages, germination testing and seedling growth phase testing with the addition of water stress treatment. Experiment 1 was conducted in a completely randomized design (CRD) with four replications, including Control (no priming), Osmopriming with 15% and 20% PEG solution, Redox Priming with 3% and 6% H2O2 solution, and Organic Priming using 50% and 75% Moringa leaf extract. Experiment 2 was conducted using a two-factor of factorial in Randomized Block design (RBD) with three replications. The first factor is the Seedling results of stage 1 experiments (selected the best of each priming method) includes 4 treatments each Control treatment, Osmopriming with 15% PEG solution, Redox Priming with 3% H2O2 solution, and Organic Priming with 50% Moringa Leaf Extract. The second factor is the level of Drought Stress conducted by 100%, 60%, and 30% of Field Capacity. The results showed that the priming method with Osmopriming 15% PEG solution gave the best results on Seed germination percentage (87.5%) followed by Organic priming with 50% Moringa Leaf Extract (SGP 85%). Under drought stress conditions with 30% field capacity, the highest increase in proline levels was observed with H2O2 redox priming 3% (10.3 µ-mol. g-1 ), while the average root growth of all primed seedlings showed better root growth than seeds without priming treatment. Seed priming gives better results on the growth and physiological activities of upland rice at several levels of drought stress, in the early growth phase of seedlings

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Section: Discussionmentioning

confidence: 99%

Effect of Different Priming Methods on Seed Viability and Seedling Growth of Upland Rice under Drought Stress

Kadir¹,

Darwisah²,

Yassin³

et al. 2023

AJAHR

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“…It is a beneficial technique for modifying seed quality through specific germinative metabolic processes, which involve osmotic adjustments, membrane reorganization and restructure, and retarding of electrolyte seepage (Mansour et al, 2019;Srivastava et al, 2021). It also helps in DNA replication responses, antioxidant function, more ATP availability, and encouraged protein biosynthesis, restoring cellular bio-membranes, and improving antioxidant enzymes (Chen and Arora, 2013;Hussain et al, 2015;Hussain et al, 2019;Mansour et al, 2019;Sen and Puthur, 2020). Anaytullah 2007 stated that the seed priming process strengthens the biochemical status of plants by inducing the activity of hydrolyses (e.g., amylase) and levels of sugars in germination whereas the enzyme (nitrate reductase) and nitrogen content in seedlings under normal conditions concerning unprimed seeds.…”

Section: Seed Priming Crosstalk With Salinity Tolerancementioning

confidence: 99%

A practical and economical strategy to mitigate salinity stress through seed priming

Khan

Irfan

Asim

et al. 2022

Front. Environ. Sci.

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Soil salinity is one of the significant abiotic threats to crops that deteriorates crop yields, and the world’s increasing population faces serious food problems due to abiotic threats. It is one of the major abiotic problems affecting more than 30% of irrigated land across the globe. The concentrations of various salts, such as NaCl, KCl, Na2SO4, and Na2CO3, cause saline stress; however, NaCl is the most abundant salt in the soil. Salinity could affect seed germination due to osmotic potential or due to specific toxic ion effects, and it decreases germination percentage and increases germination time, and high salt stress is responsible for delaying seed germination. Therefore, it is necessary to alleviate the negative impact of soil salinity during seedling growth periods, so the growth of crops in salt-affected soil will be much more enhanced. Seed priming is the utmost effective technique that could mitigate the harmful impact of soil salinity. This methodology not only minimizes the salinity tolerance but also strengthens the defense system of crops. In this technique, the hydration level within the seeds is controlled by applying pre-sowing treatments, allowing specific pre-germinative metabolic processes to occur and preventing radical emergence. Seed priming also decreases the seed germination time and improves antioxidant enzyme activities, stopping or minimizing reactive oxygen species’ adverse effects. It enhances the seedling performance with rapid and homogenous germination and vigorous and dynamic growth of the seedling, achieving a physiological situation leading to quick and enhanced emergence and germination of various crops. This review covers the mechanisms of seed priming, salinity tolerance, seed priming crosstalk with salinity tolerance, and seed priming techniques that induce biochemical, physiological, and morphological mechanisms in saline stress. Further research needs to be performed on advanced seed priming methods such as priming with nanoparticles and seed priming with physical agents (UV radiation, X-rays, gamma rays, and microwaves) to minimize the negative impact of salinity stress on different crops under different harsh environmental conditions.

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“…In addition to priming on the whole plant level, memory and cross-stress tolerance, the priming of seeds is also pivotal in managing stressful conditions. Seed priming is a treatment applied before sowing during seed imbibition (Sen and Puthur 2020 ). Seed imbibition involves three stages of seed development: rapid water uptake, saturation of water uptake, and water uptake together with the onset of cell division and growth.…”

Section: Introductionmentioning

confidence: 99%

Stress memory responses and seed priming correlate with drought tolerance in plants: an overview

Liu

Quan

Bartels

2022

Planta

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Main conclusion Environmental-friendly techniques based on plant stress memory, cross-stress tolerance, and seed priming help sustainable agriculture by mitigating negative effects of dehydration stress. Abstract The frequently uneven rainfall distribution caused by global warming will lead to more irregular and multiple abiotic stresses, such as heat stress, dehydration stress, cold stress or the combination of these stresses. Dehydration stress is one of the major environmental factors affecting the survival rate and productivity of plants. Hence, there is an urgent need to develop improved resilient varieties. Presently, technologies based on plant stress memory, cross-stress tolerance and priming of seeds represent fruitful and promising areas of future research and applied agricultural science. In this review, we will provide an overview of plant drought stress memory from physiological, biochemical, molecular and epigenetic perspectives. Drought priming-induced cross-stress tolerance to cold and heat stress will be discussed and the application of seed priming will be illustrated for different species.

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Seed priming-induced physiochemical and molecular events in plants coupled to abiotic stress tolerance: An overview

Cited by 18 publications

References 57 publications

Effect of Different Priming Methods on Seed Viability and Seedling Growth of Upland Rice under Drought Stress

Effect of Different Priming Methods on Seed Viability and Seedling Growth of Upland Rice under Drought Stress

A practical and economical strategy to mitigate salinity stress through seed priming

Stress memory responses and seed priming correlate with drought tolerance in plants: an overview

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