Modulation of defence responses by improving photosynthetic activity, antioxidative metabolism, and vincristine and vinblastine accumulation in Catharanthus roseus (L.) G. Don through salicylic acid under water stress

2011 ◽  
Vol 37 (6) ◽  
pp. 474-482 ◽  
Author(s):  
Mohd Idrees ◽  
M. Masroor A. Khan ◽  
M. Naeem ◽  
Tariq Aftab ◽  
Nadeem Hashmi ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Water Stress ◽  
Catharanthus Roseus ◽  
Photosynthetic Activity ◽  
Antioxidative Metabolism ◽  
Defence Responses

Accumulation Effects of Salicylic acid Saccharide Carboxylate on the Alkaloids in Catharanthus roseus Cells

2016 ◽  
Vol 13 (5) ◽  
pp. 438-440
Author(s):  
Er-Bing Yang ◽  
Yong Wang ◽  
Hong-Jun Zang ◽  
Zheng-Ming Li ◽  
Xing-Hai Liu
Keyword(s):  
Salicylic Acid ◽  
Catharanthus Roseus

scholarly journals Promotion of Growth and Physiological Characteristics in Water-Stressed Triticum aestivum in Relation to Foliar-Application of Salicylic Acid

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1316
Author(s):  
Abida Parveen ◽  
Muhammad Arslan Ashraf ◽  
Iqbal Hussain ◽  
Shagufta Perveen ◽  
Rizwan Rasheed ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Salicylic Acid ◽  
Antioxidant Enzymes ◽  
Water Stress ◽  
Photosynthetic Pigments ◽  
Foliar Spray ◽  
Field Capacity ◽  
Available Water ◽  
Drought Tolerant ◽  
Growth Attributes

The present work reports the assessment of the effectiveness of a foliar-spray of salicylic acid (SA) on growth attributes, biochemical characteristics, antioxidant activities and osmolytes accumulation in wheat grown under control (100% field capacity) and water stressed (60% field capacity) conditions. The total available water (TAW), calculated for a rooting depth of 1.65 m was 8.45 inches and readily available water (RAW), considering a depletion factor of 0.55, was 4.65 inches. The water contents corresponding to 100 and 60% field capacity were 5.70 and 1.66 inches, respectively. For this purpose, seeds of two wheat cultivars (Fsd-2008 and S-24) were grown in pots subjected to water stress. Water stress at 60% field capacity markedly reduced the growth attributes, photosynthetic pigments, total soluble proteins (TSP) and total phenolic contents (TPC) compared with control. However, cv. Fsd-2008 was recorded as strongly drought-tolerant and performed better compared to cv. S-24, which was moderately drought tolerant. However, water stress enhanced the contents of malondialdehyde (MDA), hydrogen peroxide (H2O2) and membrane electrolyte leakage (EL) and modulated the activities of antioxidant enzymes (superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), as well as accumulation of ascorbic acid (AsA), proline (Pro) and glycine betaine (GB) contents. Foliar-spray with salicylic acid (SA; 0, 3 mM and 6 mM) effectively mitigated the adverse effects of water stress on both cultivars. SA application at 6 mM enhanced the shoot and root length, as well as their fresh and dry weights, and improved photosynthetic pigments. SA foliage application further enhanced the activities of antioxidant enzymes (SOD, POD, and CAT) and nonenzymatic antioxidants such as ascorbic acid and phenolics contents. However, foliar-spray of SA reduced MDA, H2O2 and membrane permeability in both cultivars under stress conditions. The results of the present study suggest that foliar-spray of salicylic acid was effective in increasing the tolerance of wheat plants under drought stress in terms of growth attributes, antioxidant defense mechanisms, accumulation of osmolytes, and by reducing membrane lipid peroxidation.

Morpho-physiological and yield responses to exogenous moringa leaf extract and salicylic acid in maize (Zea mays L.) under water stress

2017 ◽  
Vol 64 (7) ◽  
pp. 994-1010 ◽  
Author(s):  
Hanafey F. Maswada ◽  
Usama A. Abd El-Razek ◽  
Abdel-Nasser A. El-Sheshtawy ◽  
Abdelnaser A. Elzaawely
Keyword(s):  
Zea Mays ◽  
Salicylic Acid ◽  
Water Stress ◽  
Leaf Extract ◽  
Zea Mays L ◽  
Yield Responses ◽  
Moringa Leaf Extract

scholarly journals Wheat Productivity In Relation To Salicylic Acid Under Water Stress

2020 ◽  
Vol 11 (1) ◽  
pp. 71-79
Author(s):  
Gomaa, A. ◽  
I. Rehab ◽  
M. Nassar ◽  
F. Farag
Keyword(s):  
Salicylic Acid ◽  
Water Stress

scholarly journals The expression of Terpenoid Indole Alkaloid (TIAs) pathway genes in Catharanthus roseus in response to salicylic acid treatment

2020 ◽  
Vol 47 (9) ◽  
pp. 7009-7016
Author(s):  
Narges Soltani ◽  
Farhad Nazarian-Firouzabadi ◽  
Alireza Shafeinia ◽  
Ayeh Sadat Sadr ◽  
Masoud Shirali
Keyword(s):  
Salicylic Acid ◽  
Catharanthus Roseus ◽  
Acid Treatment ◽  
Indole Alkaloid ◽  
Terpenoid Indole Alkaloid ◽  
Salicylic Acid Treatment

Salicylic Acid Decreases the Levels of Dehydrin-Like Proteins in Tibetan Hulless Barley Leaves under Water Stress

2006 ◽  
Vol 61 (3-4) ◽  
pp. 245-250 ◽  
Author(s):  
Xin Sun ◽  
Shu Yuan ◽  
Hong-Hui Lin
Keyword(s):  
Salicylic Acid ◽  
Water Stress ◽  
Electrolyte Leakage ◽  
Oxidative Injury ◽  
Hulless Barley ◽  
Barley Leaves ◽  
Tibetan Hulless Barley

The effects of salicylic acid (SA) on the accumulation of dehydrins in leaves of Tibetan hulless barley seedlings under water stress were investigated. The results indicated that SA decreased the levels of the four dehydrin-like proteins induced by water stress. The concentrations of these dehydrin-like proteins increased under water stress. However, their levels in SA-pretreated seedlings were always lower than in those receiving only water stress. Our results also indicated that the levels of dehydrin-like proteins decreased as the SA concentration increased. In SA-pretreated seedlings, electrolyte leakage, MDA and H2O2 content were rather higher than in seedlings receiving only water stress. By these results, we suggest that lower levels of dehydrin-like proteins in seedlings with SA treatment may be due to the greater accumulation of H2O2 induced by SA, which causes more oxidative injury under water stress.

scholarly journals Assessment of Salicylic Acid Impacts on Seedling Characteristic of Cucumber (Cucumis sativus L.) under Water Stress

2012 ◽  
Vol 4 (1) ◽  
pp. 112-115 ◽  
Author(s):  
Hossein MARDANI ◽  
Hassan BAYAT ◽  
Amir Hossein SAEIDNEJAD ◽  
Ehsan Eyshi REZAIE
Keyword(s):  
Salicylic Acid ◽  
Water Stress ◽  
Water Deficit ◽  
Cucumis Sativus ◽  
Foliar Application ◽  
Dry Weight ◽  
Water Deficit Stress ◽  
Cucumis Sativus L ◽  
Water Stress Tolerance ◽  
Randomized Design

Impacts of various concentrations of salicylic acid (SA) on cucumber (Cucumis sativus L.) seedling characteristic were evaluated under different water stress levels by using a factorial arrangement based on completely randomized design with three replications at experimental greenhouse of Ferdowsi University of Mashhad, Iran. The studied factors included three water deficit levels (100% FC, 80% FC, and 60% FC) considered as first factor and five levels of SA concentrations (0, 0.25, 0.5, 0.75, and 1 mM) as second factor. Results showed that foliar application of SA at the highest concentration enhanced leaf area, leaf and dry weight while decreased stomatal conductance under high level of water deficit stress. Though, severe water deficit stress sharply raised the SPAD reading values. In general, exogenous SA application could develop cucumber seedling characteristic and improve water stress tolerance.

scholarly journals Potential Role of Photosynthesis in the Regulation of Reactive Oxygen Species and Defence Responses to Blumeria graminis f. sp. tritici in Wheat

2020 ◽  
Vol 21 (16) ◽  
pp. 5767
Author(s):  
Yuting Hu ◽  
Shengfu Zhong ◽  
Min Zhang ◽  
Yinping Liang ◽  
Guoshu Gong ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Salicylic Acid ◽  
Powdery Mildew ◽  
Reactive Oxygen ◽  
Post Inoculation ◽  
Oxygen Species ◽  
Chlorophyll Fluorescence Parameters ◽  
H2o2 Accumulation ◽  
Pathogenesis Related ◽  
Defence Responses

Photosynthesis is not only a primary generator of reactive oxygen species (ROS) but also a component of plant defence. To determine the relationships among photosynthesis, ROS, and defence responses to powdery mildew in wheat, we compared the responses of the Pm40-expressing wheat line L658 and its susceptible sister line L958 at 0, 6, 12, 24, 48, and 72 h post-inoculation (hpi) with powdery mildew via analyses of transcriptomes, cytology, antioxidant activities, photosynthesis, and chlorophyll fluorescence parameters. The results showed that H2O2 accumulation in L658 was significantly greater than that in L958 at 6 and 48 hpi, and the enzymes activity and transcripts expression of peroxidase and catalase were suppressed in L658 compared with L958. In addition, the inhibition of photosynthesis in L658 paralleled the global downregulation of photosynthesis-related genes. Furthermore, the expression of the salicylic acid-related genes non-expressor of pathogenesis related genes 1 (NPR1), pathogenesis-related 1 (PR1), and pathogenesis-related 5 (PR5) was upregulated, while the expression of jasmonic acid- and ethylene-related genes was inhibited in L658 compared with L958. In conclusion, the downregulation of photosynthesis-related genes likely led to a decline in photosynthesis, which may be combined with the inhibition of peroxidase (POD) and catalase (CAT) to generate two stages of H2O2 accumulation. The high level of H2O2, salicylic acid and PR1 and PR5 in L658 possible initiated the hypersensitive response.

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