Published: May 10, 2024
Language: Английский
Stresses, Journal Year: 2022, Volume and Issue: 2(1), P. 113 - 135
Published: Feb. 16, 2022
On the world stage, increase in temperatures due to global warming is already a reality that has become one of main challenges faced by scientific community. Since agriculture highly dependent on climatic conditions, it may suffer great impact short term if no measures are taken adapt and mitigate agricultural system. Plant responses abiotic stresses have been subject research numerous groups worldwide. Initially, these studies were concentrated model plants, and, later, they expanded their several economically important crops such as rice, corn, soybeans, coffee, others. However, agronomic evaluations for launching cultivars classical genetic improvement process focus, above all, productivity, historically leaving factors tolerance background. Considering importance can term, new strategies currently being sought adopted breeding programs understand physiological, biochemical, molecular environmental disturbances plants interest, thus ensuring food security. Moreover, integration approaches bringing insights breeding. We will discuss how water deficit, high temperatures, salinity exert effects plants.
Language: Английский
Citations
344
Physiologia Plantarum, Journal Year: 2024, Volume and Issue: 176(1)
Published: Jan. 1, 2024
Abstract Woody plants minimize xylem embolism formation during drought essentially by closing stomata at higher water potentials and/or increasing the resistance to embolism. Both of these mechanisms result in a stomatal safety margin (SSM), which is potential difference between closure and formation. Here, we investigated whether SSM represents mechanism for herbaceous how different water‐use strategies impact their survival. For that, exposed four crops with contrasting severe deficit assess drought‐induced damage mortality. Unlike woody species, was not associated plant survival crops. Soybean, presented largest across (1.67 MPa), exhibited earliest mortality leaves whole as well highest rate (100%) end period. Cowpea, an 0.63 MPa, most drought‐resistant latest leaf (100%). The effective traits ensuring under were those related avoidance such (1) early closure, (2) very low residual transpiration post‐stomatal (3) high capacitance pre‐ post‐turgor loss.
Language: Английский
Citations
11
Plant Stress, Journal Year: 2023, Volume and Issue: 10, P. 100239 - 100239
Published: Sept. 26, 2023
A rapid growth in world population is putting a pressure on agricultural products due to their worldwide demand. Contrastively, activities developed during green revolution are becoming unsustainable current climatic change and surging population. Therefore, innovative techniques the need of time combat rising food Nanotechnology, that offering more sustainable resilient system with improvement security, an important driver bring agri-tech revolution. Here, we explored opportunities nanotechnology application biological environmental stress plants. We present various kinds nanosensors for different stresses emphasized design propose new nanotechnologies. This review also highlights challenges safely moving from labs field studies strategies how these can be surmounted. Different may helpful bringing sustainability includes prioritizing research development through full life cycle application, interconnecting organizations take actions regarding regularization agriculture, collaboration policy makers stakeholders execution.
Language: Английский
Citations
20
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 868, P. 161711 - 161711
Published: Jan. 20, 2023
The frequency of extreme drought events has been rising worldwide, but due to its unpredictability, how plants will respond remains poorly understood. Here, we aimed characterize the hydraulics and photosynthesis savanna drought, tested whether they can subsequently recover after drought. There was an in 2019 Southwest (SW) China. We investigated photosynthetic gas exchange, leaf-, stem-, whole-shoot hydraulic conductance 18 plant species with diverse leaf habits (deciduous, semi-deciduous evergreen) growth forms (tree shrub) from a dry-hot valley SW China for three rainy seasons 2021. also compared exchange those regular year (2014). found that stomatal maximum rate were significantly lower during than wetter years. In 2019, all studied maintained at their minimum level observed, which could be related high vapor pressure deficits (VPD, >2 kPa). However, no significant difference stem shoot detected across reductions regulation under might help keep function. Stomatal (2020 2021) showed comparable or even higher values 2014, suggesting recovery exchange. addition, response traits convergent forms. Our results better understand physiological mechanism underlying ecosystems climate change.
Language: Английский
Citations
18
Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 357, P. 120759 - 120759
Published: March 29, 2024
Language: Английский
Citations
7
Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: 24(2), P. 2008 - 2022
Published: March 5, 2024
Abstract To investigate how and in what amounts biochar methyl jasmonate can improve drought tolerance of barley. A two-year experimental study was conducted a factorial randomized complete block design (n = 5) the research greenhouse Zanjan University, Iran, to possible effects on some traits winter barley under conditions. Two irrigation regimes, D 0 (full soil field capacity as control) 1 (withholding immediately after flowering stage), three spray densities [0 (M ), 50 100 ) μM] four levels [0% (B 0.25% 0.25 0.5% 0.5 1% per weight] were used this experiment. In study, reduced average leaf area (LA) by 96%, stomatal conductance (gs) 84%, photosynthetic water use efficiency (PWUE) 64%. addition, chlorophyll-b 1.5% 81% transpiration rate (Tr) 2.5% 78% first second years, respectively. However, application improved all studied both D0 D1 drought-treated plants. For most parameters studied, optimal combination that optimized alleviated μM, The synergistic action jasmonates stress.
Language: Английский
Citations
5
New Phytologist, Journal Year: 2023, Volume and Issue: 240(4), P. 1405 - 1420
Published: Sept. 14, 2023
Atmospheric conditions are expected to become warmer and drier in the future, but little is known about how evaporative demand influences forest structure function independently from soil moisture availability, fast-response variables (such as canopy water potential stomatal conductance) may mediate longer-term changes response climate change. We used two tropical rainforest sites with different temperatures vapour pressure deficits (VPD), nonlimiting supply, assess impact of on ecophysiological structure. Common species between allowed us test extent which composition, relative abundance intraspecific variability contributed site-level differences. The highest VPD site had lower midday potentials, conductance (gc ), annual transpiration, stature, biomass, while transpiration rate was less sensitive VPD; it also height-diameter allometry (accounting for 51% difference biomass sites) higher plot-level wood density. Our findings suggest that increases VPD, even absence limitation, influence variables, such potentials gc , potentially leading stature resulting reductions biomass.
Language: Английский
Citations
13
Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 20, 2025
ABSTRACT The segmentation hypothesis, a framework for understanding plant drought adaptive strategy, has long been based on hydraulic resistance and vulnerability. Storage of water carbohydrate resources is another critical function shapes adaption fitness together with efficiency However, patterns implications the interdependency stored in context hypothesis are poorly understood. We measured resource pools (relative content [RWC] soluble sugar [SS] starch [S]) anatomical features leaves supporting twigs 36 trees subtropical population during dry season when Budyko's aridity index was 0.362. For each tree, we rank‐transformed RWC ( rank ), SS S ) characterised within organs using Ln /SS /S ). also assessed between difference leaf‐twig , Resource much more effective than organ‐level pool alone predicting intraspecific variation tree growth rates. Fast‐growing individuals were mainly by lower leaf higher twig . strategy fast‐growing associated attributes that facilitate phloem loading unloading thus supply upstream. Our results highlight an important dimension strategies enables better prediction vigour individually.
Language: Английский
Citations
0
Plant Cell & Environment, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 27, 2025
ABSTRACT Water storage capacity and capacitance in trees regulate hydration levels, providing water reserves during drought. However, the effects of varying traits, tissue fractions different pools on allometry branch‐/sample‐level properties have not been systematically investigated. We analyse relationships between branch size with respect to wood density, xylem vulnerability embolism, fractions. The analysis was performed using data from four tree species sampled 12 15 sites across Europe. show that three phases release curve, second phase (dominated by elasticity) significantly influenced leaf bark proportions, sapwood/heartwood ratio embolism for and/or capacitance. first capillarity) third (characterised embolism) were morpho‐physiological measured. Our results indicate are allometrically related (slope < 1) dry mass, area total content, indicating normalising these measures does completely remove size‐dependency. conclude only means obtaining size‐independent traits directly applicable comparative modelling studies is quantity per phase.
Language: Английский
Citations
0
Journal of Plant Nutrition, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 29
Published: Feb. 24, 2025
Language: Английский
Citations
0