قادر حبیبی چهاربرج Articles List

List of Articles قادر حبیبی چهاربرج

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1 - Effects of exogenous salicylic acid on antioxidative responses, phenolic metabolism and photochemical activity of strawberry under salt stress
Soheila Samadi Ghader Habibi Atousa Vaziri
10.30495/ijpp.2019.545950

To further clarify the specific photochemical mechanisms of salicylic acid (SA)-mediated adaptation to salt stress, this experiment was conducted to examine the effect of SA (100 and 500 μM) on photosynthesis, antioxidative capacity and phenolic metabolism in strawbe More

To further clarify the specific photochemical mechanisms of salicylic acid (SA)-mediated adaptation to salt stress, this experiment was conducted to examine the effect of SA (100 and 500 μM) on photosynthesis, antioxidative capacity and phenolic metabolism in strawberry plants under salt stress (50 mM). The results showed that high SA had a negative effect on strawberry plants as reduced leaf dry weight in plants that exposed to 500 μM SA under non-salt stress conditions. Salt stress negatively affected the leaf dry weight, whereas foliar spray of 100 μM SA alleviated the salt-induced inhibitory effects on the plant growth. Salt stress caused a significant decrease in photosystem performance index (PIabs); however, plants exposed to salt stress after SA pretreatment conserved their photosynthetic electron transport rate, compared with NaCl-alone treated plants, relating to the improvement of water-splitting complex on the donor side of PSII (Fv/Fo). The application of 100 μM SA in saline condition also increased the accumulation of soluble sugars like trehalose (Tre). Lipid peroxidation was observed in plants subjected to salinity stress, as evidenced by higher malondialdehyde (MDA) levels. In contrast, foliar spray of SA at a concentration of 100 μM promoted catalase (CAT) activity as well as phenolic content, thus reducing MDA and, consequently oxidative damage to membranes. Hence, foliar application of SA at 100 μM was effective in alleviation of salt stress in strawberry by improving PSII functioning, induction of compatible osmolytes and phenol metabolism, and mitigating membrane damage. Manuscript profile
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2 - Soil supplementation with silicon nanoparticles to alleviate toxicity signs of salinity in strawberry
Alireza IranBakhsh Reza Soleymanzadeh Ghader Habibi Zahra Oraghi Ardebili
10.30495/ijpp.2021.1927682.1316

20.1001.1.21558221.2022.12.2.4.0

The current study investigated the efficiency of soil supplementation with Silicon Oxide (SiO2) nanoparticle product (nSi; 20-30 nm; 0, 0.75, and 1.5 gKg-1) or Potassium silicate (BSi; K2SiO3 as a bulk counterpart) to improve strawberry protection against salinity (NaCl More

The current study investigated the efficiency of soil supplementation with Silicon Oxide (SiO2) nanoparticle product (nSi; 20-30 nm; 0, 0.75, and 1.5 gKg-1) or Potassium silicate (BSi; K2SiO3 as a bulk counterpart) to improve strawberry protection against salinity (NaCl of 2.5 gkg-1). The BSi or nSi utilization not only increased fresh root mass (mean= 23 %) but also mitigated the inhibitory effects of salinity. The salinity, BSi, or nSi treatments made changes in secondary metabolites confirmed by the differential HPLC chromatogram. The soil supplementation with BSi or nSi induced activity of phenylalanine ammonia-lyase. Likewise, the BSi or nSi treatments enhanced concentrations of phenylpropanoid derivatives, including salicylic acid, ascorbic acid, quercetin, apigenin, caffeic acid, catechin, and chlorogenic acid.The individual salinity treatment caused a severe H2O2 accumulation by two folds. However, the BSi or nSi supplementation alleviated the salinity-associated risk of H2O2 accumulation. Salt stress caused a drastic increase in lipid peroxidation levels. However, BSi or nSi applications partially relieved the salinity toxicity on membrane integrity. With a similar trend, the BSi or nSi utilization improved the nutritional status of K+, Na+, and Ca+2 in both leaves and roots. Exposure to BSi, nSi, and/or salinity also enhanced proline concentrations. The BSi or nSi treatments mitigated the salinity-mediated down-regulations in photosynthesis performance. Our findings showed that silicon supplements increased salicylic acid (a signaling compound), ascorbate, and quercetin (two vital antioxidants) as fundamental mechanisms. Manuscript profile
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3 - Photosystem II Efficiency of Primed Canola under Salt Stress
Zahra Karimi Jalil Khara Ghader Habibi
10.22034/ijpp.2020.1877551.1159

20.1001.1.21558221.2023.13.2.2.5

This experiment was conducted to investigate the role of priming in regulating growth and photosynthesis in salt-acclimated canola plants. Salt stress caused a significant decrease in total dry masses, whereas seed priming with hydrogen peroxide (H2O2), nitric oxide (NO More

This experiment was conducted to investigate the role of priming in regulating growth and photosynthesis in salt-acclimated canola plants. Salt stress caused a significant decrease in total dry masses, whereas seed priming with hydrogen peroxide (H2O2), nitric oxide (NO) or H2O2+NO mitigated the salt-induced inhibitory effects on the plant growth under acclimated conditions. The adverse effects of salinity on shoot and root lengths were alleviated only by combined H2O2 and NO priming in acclimated canola plants. Under salt-stress conditions, the contents of photosynthetic pigments were reduced in non-acclimated plants, whereas the priming with H2O2+NO alleviated the inhibitory effect of salinity on the chlorophyll a and carotenoids contents. Measuring the chlorophyll a fluorescence parameters indicated that NaCl markedly decreased the maximum quantum yield (Fv/Fm), the quantum yield of electron transport (ΦEo) and the oxygen-evolving complex efficiency of PSII (Fv/Fo) in non-acclimated canola leaves showing photoinhibition of PSII, but the priming with H2O2+NO improved these parameters under salt stress. Our results suggested that priming of canola seeds with H2O2+NO significantly increased photosynthetic pigments accumulation, which was associated with the improvement of the photochemical efficiency, resulting in better plant growth under salt stress. Manuscript profile
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4 - Effect of salicylic acid on photochemistry and antioxidant capacity in Salvia nemorosa plants subjected to water stress.
Ghader Habibi
10.30495/ijpp.2017.533561

Oxidative stress is commonly induced when plants are grown under drought stress conditions.To analyze how salicylic acid (SA) can partly alleviate drought-induced oxidative stress and negative impacts of drought on physiology and growth of Salvia nemorosa plants, we inv More

Oxidative stress is commonly induced when plants are grown under drought stress conditions.To analyze how salicylic acid (SA) can partly alleviate drought-induced oxidative stress and negative impacts of drought on physiology and growth of Salvia nemorosa plants, we investigated the physiological responses of S. nemorosa to SA application under drought stress. The treatments were composed of Co (control, 100% field capacity), Dr (drought, 50% field capacity), SA (500 µM) and DSA (SA + drought). Plant growth and relative water content (RWC) were negatively affected by drought stress; however, SA treatment significantly improved the growth rate and enhanced the drought tolerance of seedlings. This increased tolerance in SA-supplied plants was obtained by reduced damaging effect on performance index (PIabs) and maximal quantum yield of photosystem II (PSII) (Fv/Fm) through improvement of reaction centers (RC/CS) with associated changes in excitation energy trapping (TRo/CS) and electron transport (ET0/CS) per excited cross-section of leaf. Additionally, under drought condition, plants cultivated with SA exhibited better protection against oxidative damage because of higher catalase (CAT) and ascorbate peroxidase (APX) activities and lower levels of malondoialdehyde (MDA) and hydrogen peroxide (H2O2). The present study suggests that salicylic acid can play a protective role during drought stress by enhancing the photosynthetic capacity and the antioxidant defense system. Manuscript profile

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List of Articles قادر حبیبی چهاربرج