Safflower’s (Carthamus tinctorius L.) physio-biochemical mechanisms to improve its drought tolerance

Golkar, Pooran; Hamzeh, Esmaeil; Maibody, Seyed Alimohammad Mirmohammadi; Taghizadeh, Marzieh

doi:10.1007/s11738-021-03254-w

Cited by 3 publications

(9 citation statements)

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“…Therefore, under environmental stresses, MDA may have certain damaging impacts on plants, such as the interruption of photosynthetic pigments, inhibition of enzyme activity, protein denaturation, and programmed cell death 18 . Similarly, a number of previous studies reported enhanced levels of MDA in other plant species under drought stress conditions 19 , 20 . According to the findings of these studies, drought-induced oxidative stress was moderate to severe at the flowering stage of these genotypes.…”

Section: Discussionsupporting

confidence: 53%

Response of seed yield and biochemical traits of Eruca sativa Mill. to drought stress in a collection study

Nikzad

Maibody

Ehtemam

et al. 2023

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Drought tolerance is a complex trait in plants that involves different biochemical mechanisms. During two years of study (2019–2020), the responses of 64 arugula genotypes to drought stress were evaluated in a randomized complete block design with three replications under field conditions. Several metabolic traits were evaluated, i.e. relative water content, photosynthetic pigments (chlorophyll and carotenoids), proline, malondialdehyde, enzymatic antioxidants (catalase, ascorbate peroxidase, and peroxidase), total phenolic and flavonoid contents and seed yield. On average, the drought stress significantly increased the proline content (24%), catalase (42%), peroxidase (60%) and malondialdehyde activities (116%) over the two years of study. As a result of the drought stress, the seed yield (18%), relative water content (19.5%) and amount of photosynthetic pigments (chlorophyll and carotenoids) dropped significantly. However, the total phenolic and flavonoid contents showed no significant changes. Under drought stress, the highest seed yields were seen in the G50, G57, G54, G55 and G60 genotypes, while the lowest value was observed in the G16 genotype (94 g plant−1). According to the findings, when compared to the drought-sensitive genotypes, the drought-tolerant arugula genotypes were marked with higher levels of proline accumulation and antioxidant enzyme activity. Correlation analysis indicated the positive effects of peroxidase, catalase and proline on seed yield under drought conditions. These traits can be considered for the selection of drought-tolerant genotypes in breeding programs.

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Section: Discussionsupporting

confidence: 53%

Response of seed yield and biochemical traits of Eruca sativa Mill. to drought stress in a collection study

Nikzad

Maibody

Ehtemam

et al. 2023

Sci Rep

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“…Under heavy metal stresses, flavonoids enhance the process of metal chelation, which may reduce the level of harmful hydroxyl radicals in plant cells 62 . In the present study, increasing drought stress intensity led to an increase in TPC and TFD, which were consistent with the previous reports in Carthamus tinctorius 63 and Eruca sativa 64 . Also, the increase in Cu concentrations up to Cu 400 , resulted in an increase in TPC and TFD.…”

Section: Discussionsupporting

confidence: 93%

“…In contrary, a dose-dependent decrease was reported in TPC under the heavy metal stresses (Pb and Cu) in Citrus aurantium L. and cadmium in Prosopis glandulosa 69 . These discrepancies trends could be attributed to the differences in heavy metal type and its intensity, plant developmental stages and differences in plant species 63 . Here, the TPC and TFD of the F. parviflora showed upward trend under different interaction of Cu and drought stress compared to the single effects of drought and Cu levels.…”

Section: Discussionmentioning

confidence: 99%

“…For estimation malondialdehyde (MDA) content, 3 mL of 0.5% TBA and 2 mL of extraction solution were aggressively mixed together for this experiment 63 . The mixture was heated for 30 min at 95 °C in a water bath of constant temperature before cooling to room temperature with ice.…”

Section: Methodsmentioning

confidence: 99%

“…The DPPH (2,2-Diphenyl-1-picrylhydrazyl) radical-scavenging activity test procedure was carried out to estimate the antioxidant activity 63 . At 515 nm, a DPPH (Sigma-Aldrich) absorbance reduction was observed.…”

Section: Methodsmentioning

confidence: 99%

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Physiological and biochemical mechanisms of grain yield loss in fumitory (Fumaria parviflora Lam.) exposed to copper and drought stress

Tashakorizadeh,

Golkar,

Vahabi

et al. 2023

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Soil contamination with heavy metals adversely affects plants growth, development and metabolism in many parts of the world including arid and semi-arid regions. The aim of this study was to investigate the single and combined effects of drought and copper (Cu) stresses on seed yield, and biochemical traits of Fumaria parviflora in a split – factorial experiment at Research Field of Payam-E-Noor university of Kerman during 2019. The collected seeds from two Cu contaminated regions were evaluated under drought and Cu (0, 50, 150, 300, and 400 mg/kg) stresses. Drought stress levels were depletion of 50% (D1), 70% (D2) and 85% (D3) soil available water. The individual effects of drought and copper stresses were similar to each other as both reduced seed yield. The highest seed yield was observed at Cu concentration of 50 mg/kg under non-drought stress conditions. The maximum values of malondialdehyde (0.47 µmol/g), proline (2.45 µmol/g FW), total phenolics (188.99 mg GAE/g DW) and total flavonoids (22.1 mg QE/g DW) were observed at 400 mg/kg Cu treatment. However, the strongest antioxidant activity (83.95%) through DPPH assay, and the highest total soluble carbohydrate (115.23 mg/g DW) content were observed at 300 and 150 mg/kg Cu concentration under severe drought stress, respectively. The highest amount of anthocyanin (2.18 µmol/g FW) was observed at 300 mg/kg Cu and moderate drought stress. The findings of this study showed a high tolerance of F. parviflora plant to moderate drought stress and Cu exposure up to 150 mg/kg by modulating defense mechanisms, where grain yield was slightly lower than that of control. The results could also provide a criterion for the selection of tolerance species like F. parviflora for better acclimatization under Cu mines and/or agricultural contaminated soils subjected to drought stress.

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Physiological Changes and Yield Components of Safflower (Carthamus tinctorius L.) Lines as a Function of Water Deficit and Recovery in the Flowering Phase

et al. 2023

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Since climate changes have caused water restrictions, safflower stands out as an alternative crop due to its adaptability to restrictive soil and climate conditions. Thus, this research aimed to evaluate the physiological and yield performance of four safflower lines (IMA 02, IMA 04, IMA 14, and IMA 21) under two water regimes [without water deficiency—around 22% soil moisture content—100% of field capacity (FC); and with water deficiency—50% of FC]. The water regimes were imposed for 30 days during the flowering phase, followed by rehydration for 20 days. Water deficiency decreased relative water content, water potential, photosynthetic pigment contents, photosynthetic performance, maximum variable and potential quantum yield of PSII, electron transport rate, and photochemical quenching. In contrast, it increased electrolyte leakage, water use efficiency, and non-photochemical quenching. The decreases in photochemical efficiency and photosynthetic performance as a function of water deficiency caused reductions in the number of capitula, 100-grain mass, and harvest index, with more significant reductions in IMA 02, which was considered susceptible to soil water changes. IMA 04, IMA 14, and IMA 21 were considered tolerant because their physiological variables and yield components were less affected by water restriction, and they also showed recovery after rehydration compared to IMA 02. Thus, these lines can be recommended for commercial use, and safflower breeding programs aiming to select superior genotypes under drought conditions.

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Safflower’s (Carthamus tinctorius L.) physio-biochemical mechanisms to improve its drought tolerance

Cited by 3 publications

References 50 publications

Response of seed yield and biochemical traits of Eruca sativa Mill. to drought stress in a collection study

Response of seed yield and biochemical traits of Eruca sativa Mill. to drought stress in a collection study

Physiological and biochemical mechanisms of grain yield loss in fumitory (Fumaria parviflora Lam.) exposed to copper and drought stress

Physiological Changes and Yield Components of Safflower (Carthamus tinctorius L.) Lines as a Function of Water Deficit and Recovery in the Flowering Phase

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