Plants’ Physio-Biochemical and Phyto-Hormonal Responses to Alleviate the Adverse Effects of Drought Stress: A Comprehensive Review

Plants, Journal Year: 2022, Volume and Issue: 11(13), P. 1620 - 1620

Published: June 21, 2022

Water, a necessary component of cell protoplasm, plays an essential role in supporting life on Earth; nevertheless, extreme changes climatic conditions limit water availability, causing numerous issues, such as the current water-scarce regimes many regions biome. This review aims to collect data from various published studies literature understand and critically analyze plants’ morphological, growth, yield, physio-biochemical responses drought stress their potential modulate nullify damaging effects via activating natural physiological biochemical mechanisms. In addition, described breakthroughs understanding how plant hormones influence phytohormonal interaction through signaling under regimes. The information for this was systematically gathered different global search engines scientific databases Science Direct, including Google Scholar, Web Science, related studies, books, articles. Drought is significant obstacle meeting food demand world’s constantly growing population. Plants cope with cellular osmotic potential, activation defense systems form antioxidant enzymes accumulation osmolytes proteins, proline, glycine betaine, phenolic compounds, soluble sugars. Phytohormones developmental processes networks, which aid acclimating plants biotic abiotic challenges and, consequently, survival. Significant progress has been made jasmonates, salicylic acid, ethylene identifying important components roles stress. Other hormones, abscisic auxin, gibberellic brassinosteroids, peptide have linked pathways ways.

Language: Английский

---

Seed Priming: A Feasible Strategy to Enhance Drought Tolerance in Crop Plants

International Journal of Molecular Sciences, Journal Year: 2020, Volume and Issue: 21(21), P. 8258 - 8258

Published: Nov. 4, 2020

Drought is a serious threat to the farming community, biasing crop productivity in arid and semi-arid regions of world. adversely affects seed germination, plant growth, development via non-normal physiological processes. Plants generally acclimatize drought stress through various tolerance mechanisms, but changes global climate modern agricultural systems have further worsened productivity. In order increase production productivity, several strategies such as breeding tolerant varieties exogenous application growth regulators, osmoprotectants, mineral nutrients are followed mitigate effects stress. Nevertheless, complex nature makes these ineffective benefiting community. Seed priming an alternative, low-cost, feasible technique, which can improve enhanced advanced germination. Primed seeds retain memory previous enable protection against oxidative earlier activation cellular defense mechanism, reduced imbibition time, upsurge germination promoters, osmotic regulation. However, better understanding metabolic events during treatment needed use this technology more efficient way. Interestingly, review highlights morphological, physiological, biochemical, molecular responses for enhancing plants. Furthermore, challenges opportunities associated with methods also addressed side-by-side simple cost-efficient technique manner.

Language: Английский

---

Breeding for drought and heat tolerance in wheat

Theoretical and Applied Genetics, Journal Year: 2021, Volume and Issue: 134(6), P. 1753 - 1769

Published: March 14, 2021

Language: Английский

---

Genetic Improvement of Wheat for Drought Tolerance: Progress, Challenges and Opportunities

Plants, Journal Year: 2022, Volume and Issue: 11(10), P. 1331 - 1331

Published: May 18, 2022

Wheat production and productivity are challenged by recurrent droughts associated with climate change globally. Drought heat stress resilient cultivars can alleviate yield loss in marginal agro-ecologies. The ability of some crop genotypes to thrive drought conditions is attributable the inherent genetic variation environmental adaptation, presenting opportunities develop drought-tolerant varieties. Understanding underlying genetic, physiological, biochemical, mechanisms their interactions key critical opportunity for tolerance improvement. Therefore, objective this review document progress, challenges, breeding wheat. paper outlines following aspects: (1) challenges adaptation drought-prone environments, (2) such as wheat tolerance, selection methods, interplay between above-ground phenotypic traits root attributes drought-responsive (3) approaches, technologies innovations breeding. In end, summarises gains perspectives will serve baseline information breeders agronomists guide development deployment drought-adapted high-performing new-generation

Language: Английский

---

Recent Advances for Drought Stress Tolerance in Maize (Zea mays L.): Present Status and Future Prospects

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: May 30, 2022

Drought stress has severely hampered maize production, affecting the livelihood and economics of millions people worldwide. In future, as a result climate change, unpredictable weather events will become more frequent hence implementation adaptive strategies be inevitable. Through utilizing different genetic breeding approaches, efforts are in progress to develop drought tolerance maize. The recent approaches genomics-assisted breeding, transcriptomics, proteomics, transgenics, genome editing have fast-tracked enhancement for under laboratory field conditions. could considerably improved by combining omics technologies with novel methods high-throughput phenotyping (HTP). This review focuses on responses against drought, well system biology applied better understand mechanisms development drought-tolerant cultivars. Researchers must disentangle molecular physiological bases features order increase yield. Therefore, integrated investments field-based HTP, biology, sophisticated methodologies expected help stabilize production face change.

Language: Английский

---

New avenues for increasing yield and stability in C3 cereals: exploring ear photosynthesis

Current Opinion in Plant Biology, Journal Year: 2020, Volume and Issue: 56, P. 223 - 234

Published: Feb. 19, 2020

Language: Английский

---

Genetically modified foods: bibliometric analysis on consumer perception and preference

GM crops & food, Journal Year: 2022, Volume and Issue: 13(1), P. 65 - 85

Published: April 11, 2022

In this study, we present the bibliometric trends emerging from research outputs on consumer perception and preference for genetically modified (GM) foods policy prescriptions enabling consumption using VOSviewer visualization software. Consumers' positive response is largely influenced by decision of governments to ban or approve GM crops cultivation. Similarly, public support increases when potential benefits technology are well articulated, with a price discount, people's trust government belief in science influence media. Europe USA first region country, respectively, terms number active institutions per output, per-capita GDP publication citations. We suggest research-, agri-food industries-, society-oriented policies be implemented stakeholders ensure safety foods, encourage consumer-based studies, increase awareness toward these food products.

Language: Английский

---

Biotechnological Advances to Improve Abiotic Stress Tolerance in Crops

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(19), P. 12053 - 12053

Published: Oct. 10, 2022

The major challenges that agriculture is facing in the twenty-first century are increasing droughts, water scarcity, flooding, poorer soils, and extreme temperatures due to climate change. However, most crops not tolerant climatic environments. aim near future, a world with hunger an population, breed and/or engineer tolerate abiotic stress higher yield. Some crop varieties display certain degree of tolerance, which has been exploited by plant breeders develop thrive under conditions. Moreover, long list genes involved tolerance have identified characterized molecular techniques overexpressed individually transformation experiments. Nevertheless, phenotypes polygenetic traits, current genomic tools dissecting exploit their use accelerating genetic introgression using markers or site-directed mutagenesis such as CRISPR-Cas9. In this review, we describe mechanisms sense adverse conditions examine discuss classic new select improve crops.

Language: Английский

---

Physiological and molecular insight of microbial biostimulants for sustainable agriculture

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Jan. 30, 2023

Increased food production to cater the need of growing population is one major global challenges. Currently, agro-productivity under threat due shrinking arable land, increased anthropogenic activities and changes in climate leading frequent flash floods, prolonged droughts sudden fluctuation temperature. Further, warm climatic conditions increase disease pest incidences, ultimately reducing crop yield. Hence, collaborated efforts are required adopt environmentally safe sustainable agro practices boost growth productivity. Biostimulants appear as a promising means improve plants even stressful conditions. Among various categories biostimulants, microbial biostimulants composed microorganisms such plant growth-promoting rhizobacteria (PGPR) and/or microbes which stimulate nutrient uptake, produce secondary metabolites, siderophores, hormones organic acids, participate nitrogen fixation, imparts stress tolerance, enhance quality yield when applied plants. Though numerous studies convincingly elucidate positive effects PGPR-based on plants, yet information meagre regarding mechanism action key signaling pathways (plant hormone modulations, expression pathogenesis-related proteins, antioxidants, osmolytes etc.) triggered by these present review focuses molecular activated PGPR based facing abiotic biotic The also analyses common mechanisms modulated combat stresses. highlights traits that have been modified through transgenic approach physiological responses akin application target

Language: Английский

---

Synergistic effects of biofilm-producing PGPR strains on wheat plant colonization, growth and soil resilience under drought stress

Saudi Journal of Biological Sciences, Journal Year: 2023, Volume and Issue: 30(6), P. 103664 - 103664

Published: April 28, 2023

Drought stress substantially impedes crop productivity throughout the world. Microbial based approaches have been considered a potential possibility and are under study. Based on our prior screening examination, two distinct novel biofilm-forming PGPR strains namely Bacillus subtilis-FAB1 Pseudomonas azotoformans-FAP3 encompassed in this research. Bacterial biofilm development glass surface, microtiter plate seedling roots were assessed characterized quantitatively qualitatively by light scanning electron microscopy. Above isolates further evaluated for their consistent performance inoculating wheat plants pot-soil system water stresses. moderate tolerance to ten-day drought was recorded application of individual with plants; however, FAB1 + FAP3 consortium expressively improved survival during drought. The displayed multifunctional plant growth stimulating attributes as well effective rhizosphere colonization combination which could provide sustained FAP3-induced alterations cooperatively conferred controlling physiological traits (gs, Ci, E, iWUE PN), indicators (SOD, CAT, GR, proline MDA content) also maintained physico-chemical hydrolytic enzymes including DHA, urease, ALP, protease, ACP β glucosidase soil. Our findings support future efforts enhance engineering rhizobacterial biofilms associated requires in-depth exploration exploiting native local agricultural application.

Language: Английский

---