Effect of sound wave stress on antioxidant enzyme activities and lipid peroxidation of Dendrobium candidum

Li, Biao; Jin-min, Wei; Wei, Xiaolan; Tang, Kun; Liang, Ye; Shu, Kunxian; Wang, Bochu

doi:10.1016/j.colsurfb.2007.12.012

Cited by 52 publications

(34 citation statements)

References 37 publications

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“…2007). We also found that a stem was the least sensitive organ in resisting PAH stress, which is consistent with the findings of Li et al (2008) on the responses of Dendrobium candidum to sound wave stress. The correlation analysis in Table 1 indicated that only the content of MDA in leaves, stems and roots showed a generally positive correlation with the increased PAH concentrations (r=0.…”

Section: Discussionsupporting

confidence: 90%

“…The content of proline in stems increased with the increased PAH stress and showed negative correlations with the activities of SOD and CAT (see Table 2), which are in agreement with those reported by Singh et al (2004). The complementary action of enzymatic and non-enzymatic antioxidant systems in stems may support the argument that different plant organs might activate different defensive systems to avoid excessive ROS (Li et al 2008), and the antioxidant system may have organ-specific feature. This hypothesis was further supported by our results from the discriminant analysis (DA) as shown in Fig.…”

Section: Discussionsupporting

confidence: 87%

“…These results may support the argument that the defensive mechanisms of plants to the abiotic stress might be different in different organs (Li et al 2008). The covariation of proline with the inhibition effects of the two enzymes in stems may suggest that other defense mechanisms in plants may be involved when exposed to PAH stress, similar to the responses of Vicia faba under UV treatment (Shetty et al 2002, Li et al 2008). The correlation analysis as shown in Table 1 further supported the thesis that the defense ability in different organs may be different.…”

Section: Discussionsupporting

confidence: 65%

“…Our results showed that the variation patterns of CAT and POD activities in leaves and roots were consistent with that of SOD, which is generally in agreement with those responses of Arabidopsis thaliana under PAH stress (Liu et al 2009). Therefore, the enhancement of POD and CAT activities in leaves could be a necessary mechanism for plants to scavenge H2O2 in peroxisomes and cytosol where H2O2 might have diffused from chloroplasts as a result of the enhanced SOD activity (Li et al 2008). Our study showed a differential response of antioxidative enzymes under PAH stress in roots and leaves.…”

Section: Discussionmentioning

confidence: 62%

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Effects of polycyclic aromatic hydrocarbons exposure on antioxidant system activities and proline content in Kandelia candel

Song

Wang

Sun

et al. 2011

Oceanological and Hydrobiological Studies

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The antioxidant system effects of Kandelia candel were investigated under four different levels of PAH stress. The activities of antioxidant enzymes including superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD), the responses to the change of malondialdehyde (MDA) contents and the accumulation of proline in K. candel were determined. Our results suggested that the activities of SOD, CAT, POD increased significantly in leaves and roots of K. candel (p≤0.05) with the increase of the external PAH concentrations, while in stems, the activities of these antioxidant enzymes were all significantly * Corresponding author: yswang@scsio.ac.cn; Tel/Fax: 8620-89023102(O) inhibited (p≤0.01). We also observed an increase of MDA in leaves, stems and roots, and an obvious correlation between MDA content and PAH concentrations in three locations, which showed that the change of MDA content could be used as a biomarker of K. candel under PAH stress. The proline content was found remarkably enhanced in leaves, stems and roots. However, a significant inverse correlation was observed between the proline content and SOD (r=-0.99, p≤0.01), POD (r=-0.95, p≤0.05) activities in stems. This study suggested that the antioxidative system of K. candel has an obvious organ-dependent feature when exposed to PAH contamination as revealed by discriminant analysis (DA).

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 62%

See 2 more Smart Citations

Effects of polycyclic aromatic hydrocarbons exposure on antioxidant system activities and proline content in Kandelia candel

Song

Wang

Sun

et al. 2011

Oceanological and Hydrobiological Studies

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“…Also, different cell compartments might activate different defensive system, which directly avoids the excessive production of AOS. Sound wave stress also induces the lipid peroxidation in Dendrobium candidum plant by increasing the content of malondialdehyde, a decomposition product of polyunsaturated fatty acids hydroperoxides (Li et al, 2008). The effect of sound wave on the synthesis of nucleic acid and protein in chrysanthemum was investigated by Xiujuan et al (2003b).…”

Section: Role Of Sound Waves On Plant Growth and Developmentmentioning

confidence: 99%

Update on the Effects of Sound Wave on Plants

Chowdhury¹,

Lim²,

Bae³

2014

Research in Plant Disease

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Plant growth is considered the sum of cell proliferation and subsequent elongation of the cells. The continuous proliferation and elongation of plant cells are vital to the production of new organs, which have a significant impact on overall plant growth. Accordingly, the relationship between environmental stimuli, such as temperature, light, wind, and sound waves to plant growth is of great interest in studies of plant development. Sound waves can have negative or positive effects on plant growth. In this review paper we have summarized the relationship between sound waves and plant growth response. Sound waves with specific frequencies and intensities can have positive effects on various plant biological indices including seed germination, root elongation, plant height, callus growth, cell cycling, signaling transduction systems, enzymatic and hormonal activities, and gene expression.

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Bioinspired Reversibly Cross‐linked Hydrogels Comprising Polypeptide Micelles Exhibit Enhanced Mechanical Properties

Ghoorchian

Simon

Bharti

et al. 2015

Adv Funct Materials

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Noncovalently cross-linked networks are attractive hydrogel platforms because of their facile fabrication, dynamic behavior, and biocompatibility. The majority of noncovalently cross-linked hydrogels, however, exhibits poor mechanical properties, which signifi cantly limit their utility in load bearing applications. To address this limitation, hydrogels are presented composed of micelles created from genetically engineered, amphiphilic, elastin-like polypeptides that contain a relatively large hydrophobic block and a hydrophilic terminus that can be cross-linked through metal ion coordination. To create the hydrogels, heat is fi rstly used to trigger the self-assembly of the polypeptides into monodisperse micelles that display transition metal coordination motifs on their coronae, and subsequently cross-link the micelles by adding zinc ions. These hydrogels exhibit hierarchical structure, are stable over a large temperature range, and exhibit tunable stiffness, self-healing, and fatigue resistance. Gels with polypeptide concentration of 10%, w/v, and higher show storage moduli of ≈1 MPa from frequency sweep tests and exhibit self-healing within minutes. These reversibly cross-linked, hierarchical hydrogels with enhanced mechanical properties have potential utility in a variety of biomedical applications.

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Effect of sound wave stress on antioxidant enzyme activities and lipid peroxidation of Dendrobium candidum

Cited by 52 publications

References 37 publications

Effects of polycyclic aromatic hydrocarbons exposure on antioxidant system activities and proline content in Kandelia candel

Effects of polycyclic aromatic hydrocarbons exposure on antioxidant system activities and proline content in Kandelia candel

Update on the Effects of Sound Wave on Plants

Bioinspired Reversibly Cross‐linked Hydrogels Comprising Polypeptide Micelles Exhibit Enhanced Mechanical Properties

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