Variation in Phenolic Compounds, Antioxidant Activity and Osmotica of Different Cultivars of Tagetes erecta L. at Different Growth Stages and Effect of its Leachates on Germination and Growth of Wheat (Triticum aestivum L.)

Mir, Rayees Ahmad; Argal, Surendra; Ahanger, Mohammad Abass; Tomar, Nisha Singh; Agarwal, R. M.

doi:10.1007/s00344-021-10348-9

Cited by 9 publications

(6 citation statements)

References 73 publications

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“…On the other hand, according to the results in this study plant stage also determined the phenolic accumulation and its response to abiotic stress (Table 3). Similarly, Mir et al (2022) showed the effect of growth stage on the concentration and composition of phenolic fraction of tagete. In the same trend, Sakalauskaité et al (2012) reported that the respond of basil to UV-B radiation as abiotic stress.…”

Section: Effect On Phenolic Compounds and Antioxidant Capacity Of Gre...mentioning

confidence: 99%

Effect of NaCl and harvest time on antioxidant compounds and morphological cell changes in Lollo Bionda and Lollo Rosso lettuces

Flores

Amorós²,

Escalona

2022

Chil. j. agric. res.

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It is known that lettuce (Lactuca sativa L. var. crispa L.) phenological stage and environmental changes can cause changes in the plant cell morphology and an important variation in secondary plant metabolites. Antioxidant compounds are beneficial to health and salinity can increase them. The aim of this study was to determine the effect of salt concentration (NaCl 0.05 and 0.1 mol L -1 ) and harvest time (days 10, 20 and 30) on mass, color parameters, antioxidant compounds and proline concentration as well as the morphological tissue changes on two lettuce cultivars: Lollo Bionda 'Levistro' (green leaves) and Lollo Rosso 'Carmoli' (red leaves). NaCl treatments and time of harvest affected fresh matter (FM), DM and DM%, total phenol content, concentration of anthocyanin and antioxidant capacity of both cultivars. High NaCl concentrations decreased FM (from 16.8 to 8.7 g in 'Levistro' in 3 rd harvest) and the intracellular space of the leaf tissue but increased the concentration of proline (from 19.6 to 292.2 μg 100 g -1 FM in 'Levistro') and antioxidant compounds (from 412.9 to 487.3 mg Trolox eq. 100 g -1 FM in 'Levistro'). In addition, concentrations of antioxidant compounds (from 458.2 to 506.4 mg Trolox eq. 100 g -1 FM in 'Levistro') and cell density were significantly higher in late than early harvested plants. Thus, successive harvesting may lead to higher antioxidant capacities of lettuces leaves. A moderate decline in FM, a higher cell density and proline concentrations may indicate the better adaptability to salinity stress of red 'Carmoli' than the green 'Levistro' lettuces.

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Section: Effect On Phenolic Compounds and Antioxidant Capacity Of Gre...mentioning

confidence: 99%

Effect of NaCl and harvest time on antioxidant compounds and morphological cell changes in Lollo Bionda and Lollo Rosso lettuces

Flores

Amorós²,

Escalona

2022

Chil. j. agric. res.

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“…Our results revealed that drought facilitated membrane lipid peroxidation and electrolyte leakage were declined in drought tolerant B. napus genotype ( Figures 5B , C ). Earlier outcomes also noticed ROS-scavenging, reduction in lipid peroxidation and enhancement in antioxidants enzyme activities in B. napus , Lycopersicon esculentum , and Prosopis juliflora ( Mir et al, 2021 ). This indicates that drought tolerant genotype had strong and efficient antioxidative defense system, which imparts ROS-scavenging process under drought stress.…”

Section: Discussionmentioning

confidence: 81%

Purple stem Brassica napus exhibits higher photosynthetic efficiency, antioxidant potential and anthocyanin biosynthesis related genes expression against drought stress

et al. 2022

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Purple-stem Brassica napus (B. napus) is a phenotype with unique color because of its high anthocyanins content. Anthocyanins are naturally occurring plant pigments that have antioxidants activity and play important role in plant defense against abiotic and biotic stresses. In the present study, drought induced effects on plants were investigated in hydroponically grown seedlings of green stem (GS) and purple stem (PS) genotypes of B. napus. The results of this study showed that the major function of anthocyanins accumulation during drought was to enhance the antioxidant capability and stress tolerance in B. napus plants. Our results showed that drought significantly inhibited the plant growth in terms of decreased biomass accumulation in both genotypes, although marked decline was observed in GS genotype. The reduction in photosynthetic attributes was more noticeable in the GS genotype, whereas the PS genotype showed better performance under drought stress. Under stressful conditions, both the genotype showed excessive accumulation of reactive oxygen species (ROS) and malondialdehyde (MDA), as well as higher levels of antioxidant enzymes activities. Under drought conditions, the GS genotype showed apparent damages on chloroplast deformation like in thylakoid membrane and grana structural distortion and fewer starch grains and bigger plastoglobuli. Moreover, during drought stress, the PS genotype exhibited maximum expression levels of anthocyanins biosynthesis genes and antioxidant enzymes accompanied by higher stress tolerance relative to GS genotype. Based on these findings, it can be concluded that GS genotype found more sensitive to drought stress than the PS genotype. Furthermore this research paper also provides practical guidance for plant biologists who are developing stress-tolerant crops by using anthocyanin biosynthesis or regulatory genes.

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“…This indicates a higher susceptibility of Veronica persica to the allelochemicals [ 70 , 71 ]. Previous studies have also reported the inhibitory effects of Sorghum bicolor and other crop residues on the growth of Veronica persica , which was attributed to the release of phenolic acids and other allelochemicals [ 72 , 73 ]. On the other hand, it was observed that the shoot growth of Bromus sterilis exhibited an increase when subjected to the exudate treatments except for leaf width ( Figure 1 ).…”

Section: Discussionmentioning

confidence: 99%

Persistence of Root Exudates of Sorghum bicolor and Solidago canadensis: Impacts on Invasive and Native Species

Afzal,

Naz,

Ullah

et al. 2023

Plants

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Root exudates of the invasive Solidago canadensis and the cereal crop Sorghum bicolor (L.) Moench cv. ‘Hybridsorgo’ were tested for allelopathic interactions against native and invasive plant species in a controlled environment. After the surface was sterilized, the seeds of two invasive species (Bromus sterilis and Veronica persica) and two native species (Youngia japonica and Rumex acetosa) were germinated and transplanted into the soil (1:1 mixture of coco peat and sand) that had been conditioned for one month by the cultivation of Solidago canadensis and Sorghum bicolor, both in combination or as unplanted controls. After an additional eight weeks of growth, morphometric measurements of the shoot and root, including foliar characteristics and above- and below-ground biomass accumulation, were performed. The results revealed significant inhibitory effects of root exudates released by Sorghum bicolor and Solidago canadensis on native species’ productivity and physiology. The invasive species exhibited variable growth responses, with Veronica persica showing reduced shoot and root expansion, but Bromus sterilis revealed increased shoot and root biomass allocation and nutrition under the exudate treatments. Exudates from Solidago canadensis and Sorghum bicolor together showed synergistic negative effects on native species, while they promoted growth and nutrition in Veronica persica. Taken together, the differential species responses indicate that the tested native species were more sensitive to the allelopathic compounds than the invasive species, which is in line with the theory of novel weapons. The legacy effects of root exudates of both Sorghum bicolor and Solidago canadensis could promote invasive establishment through imposing allelochemical interference competition against native plant species. Understanding the specific allelopathic mechanisms may help with the development of integrated strategies for managing invasive species.

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Variation in Phenolic Compounds, Antioxidant Activity and Osmotica of Different Cultivars of Tagetes erecta L. at Different Growth Stages and Effect of its Leachates on Germination and Growth of Wheat (Triticum aestivum L.)

Cited by 9 publications

References 73 publications

Effect of NaCl and harvest time on antioxidant compounds and morphological cell changes in Lollo Bionda and Lollo Rosso lettuces

Effect of NaCl and harvest time on antioxidant compounds and morphological cell changes in Lollo Bionda and Lollo Rosso lettuces

Purple stem Brassica napus exhibits higher photosynthetic efficiency, antioxidant potential and anthocyanin biosynthesis related genes expression against drought stress

Persistence of Root Exudates of Sorghum bicolor and Solidago canadensis: Impacts on Invasive and Native Species

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