Influence of drought stress on bioactive compounds, antioxidant enzymes and glucosinolate contents of Chinese cabbage (Brassica rapa)

Shawon, Rayhan Ahmed; Kang, Baek Song; Kim, Tae Hyun; Kim, Sung Kyeom; Lee, Hee Ju; Katrich, Elena; Gorinstein, Shela; Ku, Yang Gyu

doi:10.1016/j.foodchem.2019.125657

Cited by 65 publications

(39 citation statements)

References 32 publications

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“…Our results suggested that drought stress significantly declined plant growth in terms of fresh and dry biomass in all B. napus cultivars. The decrease in plant biomass due to drought stress was higher in the sensitive cultivar (GY605) than in the tolerant cultivars (ZD622, ZS11), which is in line with previous studies on B. napus , B. rapa , B. campestris , and Triticum aestivum (Cha et al, 2020; Grieco et al, 2020; Khanzada et al, 2020; Shawon et al, 2020). Similarly, several previous studies suggested that, under drought stress, the reduction in plant growth attributes is accompanied with a reduction in plants turgor pressure, cell division, cell wall biosynthesis, and cell expansion (B. Li, Feng, et al, 2020; Pakdel et al, 2020; Zaid et al, 2020).…”

Section: Discussionsupporting

confidence: 88%

“…Water shortage and high temperature work synergistically in field conditions (Chen, Li, et al, 2020). Therefore, the present study was Triticum aestivum (Cha et al, 2020;Grieco et al, 2020;Khanzada et al, 2020;Shawon et al, 2020). Similarly, several previous studies suggested that, under drought stress, the reduction in plant growth attributes is accompanied with a reduction in plants turgor pressure, cell division, cell wall biosynthesis, and cell expansion (B.…”

Section: Tolerant Cultivars Showed Enhanced Activities Of Antioxidative Enzymesmentioning

confidence: 83%

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Drought tolerance inBrassica napusis accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

Ayyaz

Miao

Hannan

et al. 2021

Physiologia Plantarum

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Climate change, food insecurity, water scarcity, and population growth are some of today's world's frightening problems. Drought stress exerts a constant threat to field crops and is often seen as a major constraint on global agricultural productivity; its intensity and frequency are expected to increase in the near future. The present study investigated the effects of drought stress (15% w/v polyethylene glycol PEG-6000) on physiological and biochemical changes in five Brassica napus cultivars (ZD630, ZD622, ZD619, GY605, and ZS11). For drought stress induction, 3-weekold rapeseed oil seedlings were treated with PEG-6000 in full strength Hoagland nutrient solution for 7 days. PEG treatment significantly decreased the plant growth and photosynthetic efficiency, including primary photochemistry (Fv/Fm) of PSII, intercellular CO 2 , net photosynthesis, chlorophyll contents, and water-use efficiency of all studied B. napus cultivars; however, pronounced growth retardations were observed in cultivar GY605. Drought-stressed B. napus cultivars also experienced a sharp rise in H 2 O 2 generation and malondialdehyde (MDA) content. Additionally, the accumulation of ROS was accompanied by increased activity of enzymatic antioxidants (superoxide dismutase, peroxidase, catalase, ascorbate peroxidase, glutathione reductase, and monodehydroascorbate reductase), although the increase was more obvious in ZD622 and ZS11. Drought stress also caused an increased endogenous hormonal biosynthesis (abscisic acid, jasmonic acid, salicylic acid) and accumulation of total soluble proteins and proline content, but the extent varies in B. napus cultivars.These results suggest that B. napus cultivars have an efficient drought stress tolerance mechanism, as shown by improved antioxidant enzyme activities, photosynthetic and hormonal regulation. | INTRODUCTIONWater stress is an increasingly scarce resource that decreases crop production in many parts of the world. Drought stress is one of the most severe abiotic environmental stress factors affecting crop production worldwide (Kour et al., 2020). Rapid anthropogenic climatic changes affect the annual precipitation pattern, leading to severe drought stress in many agricultural areas (Scott et al., 2014). Acquiring drought tolerance in plants probably involves molecular, cellular, physiological, and developmental adjustments enabling plants to adopt an adequate response to maintain optimal growth and development (Bergmann, 2020). In plants, drought stress adaptive strategies have been categorized as (1) drought tolerance via early flowering (Khadka et al., 2020), (2) drought escape via enhanced water uptake and reduced

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Section: Discussionsupporting

confidence: 88%

Section: Tolerant Cultivars Showed Enhanced Activities Of Antioxidative Enzymesmentioning

confidence: 83%

Drought tolerance inBrassica napusis accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

Ayyaz

Miao

Hannan

et al. 2021

Physiologia Plantarum

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“…The excessive accumulation of ROS can damage cells and cause oxidative deterioration of cell membranes, which may lead to plant death in severe cases. There is an active oxygen scavenging system in plants, in which SOD, POD and CAT are important antioxidant enzymes for scavenging ROS (Shawon et al 2020). In our research, the activities of POD, SOD and CAT enzymes in the four oak species showed a trend of increasing rst and then decreasing.…”

Section: Antioxidant Enzyme Activities and Mdamentioning

confidence: 55%

Effects of drought stress and rehydration on physiological and biochemical of four oak species in China

Xiong

Wang

Chen

et al. 2021

Preprint

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Background: Quercus fabri Hance, Quercus serrata Thunb, Quercus acutissima Carruth, and Quercus variabilis BL are four Chinese oak species commonly used for forestation. In recent years, with the global warming caused by the greenhouse effect, seedlings in mountainous areas after afforestation often suffer seasonal drought stress, which seriously affects their survival and growth. In order to ensure the survival of seedlings, we need to select oak species with strong drought resistance. Therefore, we first need to understand the differences in drought resistance of the four oak tree species at the seedling stage, and comprehensively evaluate their drought resistance capabilities by studying the changes in the physiological and biochemical characteristics of the seedlings under continuous drought and rehydration conditions.Methods: The four oak seedlings were divided into drought-rewatering treatment group and normal watering control group. For the seedlings of the drought-rewatering treatment group, drought stress lasting 31 days was used, and then re-watering and recovering for 5 days. The water parameters, osmotic adjustment substance content, antioxidant enzyme activity and photosynthesis parameters of the seedlings in the two groups were measured every 5 days. Principal component analysis, correlation analysis and membership function were used to analyze the physiological and biochemical characteristics of the seedlings of the four oak in two groups.Results and conclusions: Compared with the control group, the relative water content, water potential, net photosynthetic rate, transpiration rate, and stomatal conductance levels of the four oaks all showed a downward trend under continuous drought stress, and showed an upward trend after rehydration. The soluble protein, soluble sugar, proline, peroxidase, superoxide dismutase and catalase content of the four oaks increased first and then decreased under drought stress, and then increased after rehydration. The content of glycine betaine and malondialdehyde continued to increase, and gradually decreased after rehydration. The weight of each index was calculated by PCA, and then the comprehensive evaluation of each index was carried out through the membership function method. The drought resistance levels of the four oak species were as follows: Q. serrata > Q. fabri > Q. variabilis > Q. acutissima.

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“…The antioxidant activity of B. rapa crops, including measurements of antioxidant potential on different plant organs, has not been conveniently studied yet, and these crops may be promising subjects in the field of antioxidant activity [17]. Variations in the content of phenolic compounds in Brassica spp.…”

Section: Bioactive Compoundsmentioning

confidence: 99%

“…Brassica crops are considered to be important vegetables due to several evidences of their health-promoting effects, such as a reduction in the risk of chronic diseases, particularly cardiovascular diseases and several types of cancer [10][11][12][13][14][15]. The beneficial effects that are associated to B. rapa consumption have been linked to the presence of phenolics and GLSs in these plants and to many constituents having a strong antioxidant activity [7,[16][17][18]. GLSs and their degradation products have been extensively researched for their role in cancer prevention and plant defense [12,19,20].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Italian and Spanish Accessions of Brassica rapa L.: Effect of Flowering Earliness on Fresh Yield and Biological Value

et al. 2020

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A comparative study for evaluating Italian and Spanish accessions of Brassica rapa var. rapa L., including turnip greens and turnip tops, was carried out at different locations with a view to determine the effect of earliness on crop production, antioxidant activity, glucosinolates amount, and profile (GLSs) and total phenolics content. The accessions evaluated were represented by two turnip top local varieties (one Italian variety and a Galician one), four new synthetic varieties established by Misión Biológica de Galicia (MBG-CSIC), and three commercial varieties widely used by growers in Galicia and in Italy. The results showed a great variability regarding flowering time, fresh and dry weight of the leaves and flower buds, and the branch number per plant. The highest turnip greens production was found in two synthetic varieties (“SIN07” and “SIN01”) for both countries. Local varieties “BRS550” and “CM39” were also suitable for turnip greens production in Spain and Italy, respectively. For turnip tops, the highest production was found for “SIN07” in Spain, for “CM39” in Italy and for “BRS550” in both countries. We found a high diversity in the total and individual glucosinolate, phenolic content, and antioxidant activity among genotypes, geographical origins, and the different parts of the plant (leaf and flower). Varieties “SIN01” and “SIN07” showed the highest values in total GLSs, total aliphatic and gluconapin contents in turnip greens followed by the two commercial varieties. For turnip tops, the highest values in gluconapin, aliphatic, and total GLSs contents were found in “SIN01” and “BRS550”. Even though different varieties stand out over the rest depending on the location, “SIN01”, “SIN07”, “CM39”, and “BRS550” could be recommended for turnip greens production because of its high antioxidant activity. The study showed that the latest varieties are more productive and show higher bioactive compounds than the earlier ones and that it is possible to improve genotypes for different growing cycles. Therefore, these varieties could be proposed for further breeding programs for B. rapa production.

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Influence of drought stress on bioactive compounds, antioxidant enzymes and glucosinolate contents of Chinese cabbage (Brassica rapa)

Cited by 65 publications

References 32 publications

Drought tolerance inBrassica napusis accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

Drought tolerance inBrassica napusis accompanied with enhanced antioxidative protection, photosynthetic and hormonal regulation at seedling stage

Effects of drought stress and rehydration on physiological and biochemical of four oak species in China

Evaluation of Italian and Spanish Accessions of Brassica rapa L.: Effect of Flowering Earliness on Fresh Yield and Biological Value

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