Scientia Horticulturae, Journal Year: 2021, Volume and Issue: 285, P. 110177 - 110177
Published: April 15, 2021
Language: Английский
Plant Stress, Journal Year: 2023, Volume and Issue: 10, P. 100296 - 100296
Published: Nov. 16, 2023
Photosynthesis is crucial for sustaining life on this planet and necessary plant growth development. Abiotic stresses such as high low temperatures, excess, or deficit of water limit the processes, thus threatening global food security. However, recent molecular approaches allowed elucidation photosynthetic components/compounds their efficiency under stress conditions. In present scenario, these are not enough to reduce yield penalty due reduction in efficiency. Therefore, comprehensive data behaviour crosstalk networks could assist understanding in-depth mechanism photosynthesis. years, information regarding crosstalk, signalling characterization candidate genes, responses multiple stressors have advanced our knowledge understand review, we provide a overview various studies conducted photosynthesis abiotic factors that affect plant. We also discuss role compounds (plant regulators micro RNAs) an mechanism. Finally, based gathered set, damage adaptive response explained enhance scientific community's toward boosting accelerate tolerance strategies crop improvement.
Language: Английский
Citations
81
Agronomy, Journal Year: 2020, Volume and Issue: 10(11), P. 1627 - 1627
Published: Oct. 22, 2020
Chlorophyll fluorescence (CF), growth parameters, phytochemical contents [proline, chlorophyll, ascorbic acid, total phenol content (TPC), flavonoid (TFC)], and antioxidant activities were investigated in lettuce (Lactuca sativa L.) seedlings grown under different sodium chloride (NaCl) concentrations (0, 50, 100, 200, 300, 400 mM) a controlled environment for eight days. The parameters evaluated at two days intervals. Almost of the CF as well phytochemicals significantly affected by both NaCl progressive treatment schedule. maximum quantum yield (Fv/Fm), effective photochemical energy conversion PSII [Y(PSII)], coefficient quenching (qP), non-photochemical (qN), ratio decline (Rfd) showed decrements only highest saline concentration (400 mM), whereas non-regulated dissipation [Y(NO)] exhibited trend. All decreased with increasing concentrations, showing decrease (~8 fold) shoot fresh weight, compared to control seedlings. Proline increased time. Other increase reached their lowest mM. Overall, results major changes all when present findings will be useful understanding differential effect seedlings, also might optimize other crops environmental conditions.
Language: Английский
Citations
112
Agronomy, Journal Year: 2021, Volume and Issue: 11(3), P. 534 - 534
Published: March 12, 2021
Modern sweet corn is distinguished from other vegetable corns by the presence of one or more recessive alleles within maize endosperm starch synthesis pathway. This results in reduced content and increased sugar concentration when consumed fresh. Fresh originated USA has since been introduced countries around World with increasing popularity as a favored choice. Several reviews have published recently on genetics, breeding, physiology that focus basic biology uses US. However, new questions concerning sustainability, environmental care, climate change, along introduction produced variety research activities. review summary during five years preceding 2021.
Language: Английский
Citations
96
Plant Signaling & Behavior, Journal Year: 2020, Volume and Issue: 16(2), P. 1853384 - 1853384
Published: Dec. 23, 2020
Not much information is available to substantiate the possible role of γ -aminobutyric acid (GABA) signaling in mitigating water-deficit stress snap bean (Phaseolus vulgaris L.) plants under semiarid conditions. Present work aims investigate exogenous GABA (foliar application; 0.5, 1 and 2 mM) amelioration drought improvement field performance on raised two drip irrigation regimes (100% 70% water requirements). Water led significant reduction plant growth, leaf relative content (RWC), cell membrane stability index (CMSI), nutrient uptake (N, P, K, Ca, Fe Zn), pod yield its from protein total soluble solids (TSS). Meanwhile, lipid peroxidation (malondialdehyde content- MDA), osmolyte (free amino acids- FAA, proline, sugars) antioxidative defense (activity superoxide dismutase- SOD, catalase- CAT, peroxidase- POX ascorbate APX) fiber exhibited significantly increase due stress. Exogenous application (especially at revealed partial normalization effects plants. GABA-induced mitigation was manifested by status, integrity, osmotic adjustment, antioxidant acquisition. Furthermore, during resulted being increased quality attributes. To sum up, appears function as an effective priming molecule alleviate
Language: Английский
Citations
72
Journal of soil science and plant nutrition, Journal Year: 2021, Volume and Issue: 21(3), P. 2297 - 2309
Published: June 7, 2021
Language: Английский
Citations
60
Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13
Published: Nov. 10, 2022
Salt stress impacts phosphorus (P) bioavailability, mobility, and its uptake by plants. Since P is involved in many key processes plants, salinity deficiency could significantly cause serious damage to photosynthesis, the most essential physiological process for growth development of all green Different approaches have been proposed adopted minimize harmful effects their combined effect. Optimising nutrition seems bring positive results improve photosynthetic efficiency nutrient uptake. The present work posed question if soluble fertilizers allow wheat plants counter adverse effect salt stress. A pot experiment was performed using a Moroccan cultivar durum wheat: Karim. This study focused on different responses grown under P-availability. Two Orthophosphates (Ortho-A & Ortho-B) one polyphosphate (Poly-B) were applied at levels (0, 30 45 ppm). Plant analysed some parameters (stomatal conductance (SC), chlorophyll content index (CCI), fluorescence, shoot root biomass, mineral uptake). Fertilized showed significant increase performance Compared salt-stressed unfertilized (C+), CCI increased 93%, 81% 71% ppm fertilized Poly-B, Ortho-B Ortho-A, respectively. highest SC obtained fertilizer with an 232% followed 217% 157% both Poly-B Photosynthetic (PItot) also 128.5%, 90.2% 38.8% Ortho-B, Ortho-A Poly B, In addition, enhancement roots shoots biomass (49.4% 156.8%, respectively) compared C+. absorbed more phosphorus. mainly P. Positive correlations found between uptake, yield. photochemical activity be due light energy enhanced Chl antenna. adequate fertilization therefore evident
Language: Английский
Citations
46
Agronomy, Journal Year: 2023, Volume and Issue: 13(2), P. 579 - 579
Published: Feb. 17, 2023
Drought is one of the major challenges global crop production, and its severity increasing because climate change. This abiotic stress an important target for Brassica species, which are generally grown in arid semi-arid climates. study was conducted to investigate effects water deficit on a set accessions belonging core collection EU H2020 BRESOV project, represented by oleracea L. crops complex species (n = 9). In particular, variation amount profile glucosinolates (GLSs) compounds analyzed root leaf tissues. The plant morphometric traits GLSs were detected plants cold greenhouse Catania (Sicily) during autumn–winter season ten weeks. results showed wide qualitative quantitative among accessions. varied qualitatively quantitively both genotypes portions (hypogenous-root epigeous-leaf). Plants under drought stress, last two weeks growing cycle consideration, higher GLS their leaves (190.1 ± 8.9 µmol. g−1 d.w.) compared roots (17.3 1.9 d.w.). Under conditions, highest increase glucosinolate broccoli (the accession BR1) with 85.4% cauliflower CV1) 72.8% leaves, respectively. Positive correlations found between identified. selection chemotypes allows time reduction breeding programs after crossing specific profiles glucosinolates.
Language: Английский
Citations
29
Horticulturae, Journal Year: 2025, Volume and Issue: 11(1), P. 74 - 74
Published: Jan. 11, 2025
Vegetable production worldwide is heavily influenced by climate change. We aimed to determine the responses of some local tomato landraces from Mediterranean countries pre-selected as drought tolerant according previous screening tests at an early stage. Three irrigation approaches were applied: Full (Ir-Full), Deficit 1 (Ir-Def1), and 2 (Ir-Def2) irrigation. Drought stress was simulated via controlled deficit, reducing amount water applied 35% 50% in Ir-Def1 Ir-Def2, respectively. Plant growth, yield, fruit physicochemical properties, consumption, use efficiency measured. The results revealed that deficit adversely affected total marketable yields, plant biomass while enhancing specific quality parameters. Landrace varied across different levels deficit. Among tested landraces, ‘Valldemossa’, ‘Chondrokats’, ‘TR62367’ exhibited strong yield performance, with up 4 kg m−2 under water-limited conditions, whereas ‘Cherry-INRAE 1’, 3’, 4’ excelled attributes, reaching 9.3% Brix, 14.07 mg 100 g−1 vitamin C, 7.77 GAE phenols, 75.74 µmol TE antioxidant activity. could be reduced without compromising or most drought-tolerant landraces.
Language: Английский
Citations
1
Reviews in Agricultural Science, Journal Year: 2022, Volume and Issue: 10(0), P. 168 - 185
Published: Jan. 1, 2022
The function of water for plants is crucial, including playing the roles in metabolic reactions. aims this article are to give information on effects drought stress plant morphology, physiology, and biochemistry, as well mitigation methods management production. Plants manage using a mechanism, namely escape, avoidance tolerance. Drought escape ability accelerate flowering or life cycle, reduce loss increase absorption through morphological changes root system, tolerance adaptation by physiological biochemical processes. Physiological that occur include closing stomata decreased photosynthesis. responses synthesis solute compounds form osmotic adjustment cell called from cell. indicators increased concentrations abscisic acid (ABA), proline, sugar (trehalose). ABA acts signal stimulate stomatal closure transpiration rate. Proline an indicator adapting stress, role cells retain Trehalose compatible acting osmoprotectant, it can maintain integrity membranes (water replacement) hydrogen bonds entrapment). under conditions adapt making morphological, physiological, adjustment. These need be managed so appropriate strategies technologies needed measures.
Language: Английский
Citations
36
Agricultural Water Management, Journal Year: 2023, Volume and Issue: 282, P. 108246 - 108246
Published: March 13, 2023
Soil water deficits limit the photosynthetic productivity of crops, resulting in reduced yields. However, effects soil stress on leaf gas exchange parameters, actual quantum efficiency (ΦPSII), capacity (maximum electron transfer rate ETRmax, maximum Anmax, carboxylation Vcmax25) and environmental such as active radiation (PAR), vapour pressure deficit (VPD), remains unclear. Especially, dynamic responses crops with different canopy structure types phenological stages to needs be further clarified. In this study, we conducted a field experiment using wheat maize under complete rainfall isolation study coupled factors processes capacity. Our results showed that ΦPSII - PAR relationship leaves(a C3 plant) was more sensitive than leaves (a C4 significantly differed stage. The coupling VPD had pronounced effect parameters (net (An), stomatal conductance (gsw), transpiration (TE), intrinsic use (WUEi)) PAR, especially for wheat, where content (SWC) degree increased. SWC status did not alter An-PAR relationship, contrast maize, wherein strong observed. Water limiting ETRmax maize. Anmax weaker both whereas Vcmax25 exhibited stronger SWC. Additionally, physiological response process should take into account differences between periods. can used reference precise irrigation.
Language: Английский
Citations
17