Figure - available from: Frontiers in Plant Science
This content is subject to copyright.
Temperature profile (°C; top) and RH (%) and photoperiod (hours; bottom) during the normal sown and late sown experiments. Arrows indicate the reproductive phase during both environments. Yellow line in the below figure represents the photoperiod during both sowing environments.
Source publication
Rising temperatures are proving detrimental for various agricultural crops. Cool-season legumes such as lentil (Lens culunaris Medik.) are sensitive to even small increases in temperature during the reproductive stage, hence the need to explore the available germplasm for heat tolerance as well as its underlying mechanisms. In the present study, a...
Similar publications
The present study reports the role of morphological, physiological and reproductive attributes viz. membrane stability index (MSI), osmolytes accumulations, antioxidants activities and pollen germination for heat stress tolerance in contrasting genotypes. Heat stress increased proline and glycine betaine (GPX) contents, induced superoxide dismutase...
Citations
... In chickpeas (Cicer arietinum), high temperatures during flowering impair pod set and seed development, leading to significant yield losses (Jumrani and Bhatia, 2014). Lentil (Lens culinaris) shows a similar sensitivity, with heat stress reducing seed viability and germination rates (Sita et al., 2017). In durum wheat, elevated temperatures accelerate grain filling but compromise starch accumulation, affecting pasta-making quality (Labuschagne et al., 2009;Sabella et al., 2020). ...
The study examines how biostimulants can support plant adaptation to drought and high temperatures, focusing on key Mediterranean crops. Rather than offering a miraculous solution, biostimulants enhance the plant’s natural resilience by modulating key physiological and biochemical pathways. This underscores the importance of continued research into the endogenous defense strategies of plants, as well as the need to design tailored biostimulants that specifically amplify these existing protective mechanisms. Advancing this knowledge will be essential for optimizing sustainable agricultural practices in the face of climate change.
This is the link to the article: https://www.sciencedirect.com/science/article/pii/S2667064X25000673?via%3Dihub
... High temperature limits the cultivation and utilization of cool-season plants in many regions worldwide. Systematic evaluation and identification of genotypic variation in thermotolerance within one specific species that are collected from different geographical positions are critical to scientific utilization of these resources in different climatic zones and also provide potential materials for breeding of new cultivars with better environmental adaptation and further exploring thermo-resistance mechanisms (Sita et al. 2017;Chaudhary et al. 2020). For cool-season turfgrass, Sun et al. (2014) screened 5 heat-tolerant tall fescue genotypes for future breeding of new variety through evaluating heat tolerance of 120 accessions from different countries and regions based on growth and physiological parameters such as growth rate, Chl content, RWC, and EL. ...
Creeping bentgrass (Agrostis stolonifera) is a cool-season perennial turfgrass and is frequently utilized in high-quality turf areas. However, a poor to moderate resistance to heat stress limits its promotion and utilization in transitional and worm climate zones. The objectives of the study were to assess the heat tolerance of 18 creeping bentgrass genotypes in the field and to further uncover differential mechanisms of heat tolerance between heat-tolerant and heat-sensitive genotypes. The results showed that 18 different genotypes had different heat tolerance during summer months of 2021 and 2022. Among them, 13 M was identified as the best heat-tolerant cultivar based on the subordinate function values analysis of five physiological indicators. Under controlled growth conditions, heat stress significantly inhibited photosynthetic capacity and also accelerated oxidative damage and chlorophyll (Chl) degradation in both heat-tolerant 13 M and heat-sensitive PA4. However, as compared with heat-sensitive PA4, 13 M maintained significantly higher net photosynthetic rate, water use efficiency, and total antioxidant capacity as well as less Chl degradation and damage to chloroplast ultrastructure. Significantly higher contents of abscisic acid, cytokinin, gibberellin, and polyamines (spermine, spermidine, and putrescine) were also detected in 13 M than that in PA4 in the later stage of heat stress, but 13 M exhibited significantly lower indoleacetic acid content than PA4 during heat stress. In addition, heat-upregulated genes involved in heat shock transcriptional pathways were more pronounced in 13 M than in PA4. These findings indicated that better heat tolerance of 13 M could be related to more stable Chl metabolism, better photosynthetic and antioxidant capacities, endogenous hormonal homeostasis, and more effective heat shock transcriptional pathway. 13 M is more appropriate for planting in transitional and subtropical zones instead of widely used PA4.
... At the time of vegetative growth, heat stress causes a decrease in photosynthetic pigments, scorching, and necrosis, therefore retarding plant growth, but at the reproductive stage, heat stress showsa more damaging effect in plants. It impairsthe growth and function of reproductive parts and hampers fertilization via damaging pollen development, germination, and tube growth (Zinn et al. 2010;Hatfield and Prueger 2015;Kaur et al. 2015;Sita et al. 2017). ...
... Therefore, phenomics should be applied in field-based lentil research. A traditional physio-molecular approach is used to identify heat tolerant genotypes by measuring several physiological traits in field-grown lentils, such as membrane stability, photosynthetic rate, pollen/ovule germination and viability, and pod set Sita et al. 2017;Chaudhary et al. 2020). Meanwhile, a different approach known as the Focused Identification of Germplasm Strategy (FIGS) relies on the theory that the interaction of plants with harsh external environmental conditions helps discover heat-tolerant genotypes (Tiwari et al. 2022). ...
Climate change has negatively impacted lentil growth and production, necessitating advanced omics tools for trait characterization and genetic improvement. Traditional breeding methods have reached their limits, making high-throughput omics technologies, biotechnology, and bioinformatics essential. Despite their benefits, efforts targeting lentils have been limited. Genomics and transcriptomics studies have identified linkage maps, quantitative-trait loci (QTLs), and stress tolerance genes. The use of phenotyping techniques has expanded, but lentil has not yet made full use of these state-of-the-art procedures under stress conditions. Lentil proteomics has used 2-D gel electrophoresis to discover seed-specific proteomes, but lacks research on stress impacts. Lentil ionomics has involved the analysis of elemental composition and the examination of changes in response to various stresses. Metabolomics has revealed key stress-related pathways and genes. The review suggests integrating omics discoveries into a systems approach to enhance lentil productivity and resilience.
... Cold stress decreases photosynthetic CO 2 uptake in sorghum (Ortiz et al., 2017), and heat stress reduces seed weight and number in cereals and legumes (Sehgal et al., 2018). High temperatures cause small, wrinkled seeds in chickpeas (Kaushal et al., 2016) and lentils (Sita et al., 2017) due to reduced photosynthate translocation (Farooq et al., 2017). ...
... Morphological and phenological characteristics of over 76% of ICARDA lentil accessions have been characterized (www.genesys-pgr.org; [68][69][70][71]) (accessed on 26 August 2024). A lentil diversity panel (LDP) of 324 accessions was phenotyped for phenological features over two seasons in nine distinct locations worldwide as part of the Canadian-led AGILE project [72]. ...
Citation: Ali, F.; Zhao, Y.; Ali, A.; Waseem, M.; Arif, M.A.R.; Shah, O.U.; Liao, L.; Wang, Z. Omics-Driven Strategies for Developing Saline-Smart Lentils: A Comprehensive Review. Int. Abstract: A number of consequences of climate change, notably salinity, put global food security at risk by impacting the development and production of lentils. Salinity-induced stress alters lentil genetics, resulting in severe developmental issues and eventual phenotypic damage. Lentils have evolved sophisticated signaling networks to combat salinity stress. Lentil genomics and transcrip-tomics have discovered key genes and pathways that play an important role in mitigating salinity stress. The development of saline-smart cultivars can be further revolutionized by implementing proteomics, metabolomics, miRNAomics, epigenomics, phenomics, ionomics, machine learning, and speed breeding approaches. All these cutting-edge approaches represent a viable path toward creating saline-tolerant lentil cultivars that can withstand climate change and meet the growing demand for high-quality food worldwide. The review emphasizes the gaps that must be filled for future food security in a changing climate while also highlighting the significant discoveries and insights made possible by omics and other state-of-the-art biotechnological techniques.
... Seed weight and quantity experienced a notable decrease as a result of pod losses and a reduced number of filled pods, consistent with earlier studies in drought-affected chickpea and lentil (" Behboudian et al., 2001;Sehgal et al., 2017"), as well as in heat-affected chickpea and lentil (" Kaushal et al., 2013;Sita et al., 2017"). The stresses in combination exerted a more pronounced effect on both seed weight and quantity compared to the single stresses, resulting in substantial yield reductions attributed to decreases in biomass, number of pods and seeds, and size of seeds. ...
... Terminal drought can suppress nearly all the processes of lentil growth and metabolism, damaged membranes by 21-40%, causing heavy yield losses, as it reduces flower production, pod number, and seed number [3]. Similarly, timing and intensity of exposure to high temperature are critical such as late sown pulses face heat stress at their reproductive stage, which damage the crop significantly [4]. Among all stages, reproductive stage which determine the overall performance of crop is negatively impacted to terminal heat and water stress. ...
The threat of global climate change mainly in term of heat and combined stress is one of the utmost serious concerns for farmers, and have a negative impact on agriculture production and challenging food security worldwide. A field experiment was conducted during Rabi season at Pulse breeding Block, G.B Pant University of Agriculture and Technology, Pantnagar. The objective of this investigation was to effect of shading to mitigate the heat and combined stress as well as the comparison of heat and combined stress in microsperma and macrosperma genotypes. It was laid out in factorial random block design with three replications. The morpho-physiological and yield attributes of both genotypes under varied growth condition at different time interval were evaluated. The microsperma (PL-8) and macrosperma (PL-11) after shading changed their plant height (6% and 5%), NDVI value (5% and 4%), Membrane stability index (9% and 6%), days to maturity (7% and 6%) and total no of grain (15% and 37%) under heat stress while in combined stress it was changed by 8% and 10% in plant height, 9% and 3% in NDVI value,14% in MSI,7% and 3% in days to maturity and13% and 23% in yield. The above finding proves the effect of shading mitigate the damage extent and also increase production of both lentil genotypes (PL-8) and (PL-11).
... Water stress also affects plants at different growth stages, including vegetative (intermittent drought) and reproductive (terminal drought) stages. Terminal drought can suppress nearly all the processes of lentil growth and metabolism, causing heavy yield losses (Sitak, et al., 2017), as it reduces flower production, pod number, and seed number. The other distinct morphological characters of lentils are also large seeded (macrosperma) types which are native to West Asia and North Africa and Southern Europe (FAO, 2022). ...
Planting time plays an important role in the growth, development, and yield of Lentil genotypes. Lentil (Lens Culinaris Medik) is a multipurpose annual legume crop grown in many environments in Ethiopia. Lentil varieties respond differently to different planting times. The availability of a significant detailed study on physiological progress on twenty lentil genotypes planted during normal (NPD) and late planting days (LPD) is comparatively low. The present study has been carried out considering the above facts. A field experiment was conducted at Dz station and Ak sub-station in 2021and/or 2022 to study the effect of two sowing times on phenology and yield of twenty lentil varieties by using a Randomized Complete Block Design (RCBD) of three replications. At the Ak substation, during NPD and LPD the result shows higher biomass and seed yield than the Dz station. Ak sub-station on genotypes R186 biomass yields were 13.3 NPD and 9.7t/ha LPD. On the genotype R186, the biomass was 11.6 NPD and 6.0 t/ha LPD at the Dz station. Early 50% flowering and days to maturity genotypes on Beredu exhibited maximum harvesting index at both locations. During LPD reproductive functions are markedly reduced leading to escape reproductive growth, abort, or shatter pod formation, and shortening the flowering period in all genotypes causing decreases in yield. Genetic responses with higher biomass yield and harvest index at Dz and Ak during normal planting days indicate the importance of time of planting that demonstrated the main breeding goal. The adverse effect of delayed planting time can be mitigated by forecasting the optimum planting time. The study was valuable for the Agricultural sector and designed to minimize the gap in adaptation and yield status which were contributing to self-sufficiency for stakeholders around central Ethiopia.
... An elevated temperature ranging from 30 to 40°C may contribute to the disruption of plant germination kinetics [9]. Furthermore, it has been reported that plant reproduction is the most vulnerable plant function to heat stress for several crops such as lentil [10], Chickpea [11] and rice [12,13]. Under stressful conditions (e.g., drought, salinity, heat) proline accumulation is known to be an osmoprotective strategy of membranes and proteins, developed by plants to keep their optimal growth and reproductive functions [14,15]. ...
Background: The current study was carried out to assess the alternative role of high temperature tolerant plant growth promoting rhizobacteria (PGPR) in alleviation of heat stress adverse effect in eggplant.Methods: PGPR was assessed for PGP potentialities and investigated for1‐aminocyclopropane‐1‐carboxylate (ACC deaminase), and exopolysaccharide under normal and high temperature environment. The impact of PGPR application on plant physiology and biochemistry was investigated under normal and high temperature environments and plant growth regulators were evaluated using High Performance Liquid Chromatography (HPLC).Results: A significant impediment for morphological and physiological parameters of eggplant cultivars was observed during heat stress in absence of PGPR inoculation. The results showed that ACC‐deaminase produced by PGPR boosted up significantly the extracellular polymeric substances (EPS) accumulation, conversion of ACC into α‐ketobutyrate and ammonia, and reduce consequently the impact of high temperature on eggplant development.Conclusion: PGPR inoculation showed an alternative strategy to improve eggplant growth and development under high temperature condition in order to preserve agriculture sustainability and healthy crops.Keywords: ACC‐deaminase; Extracellular polymeric substances; Heat stress; PGPR; Solanum melongena
