کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2015182 | 1541973 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of exogenous hydrogen peroxide on biophoton emission from radish root cells
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of exogenous hydrogen peroxide on biophoton emission from radish root cells Effect of exogenous hydrogen peroxide on biophoton emission from radish root cells](/preview/png/2015182.png)
چکیده انگلیسی
Biophotons spontaneously emitted from radish root cells were detected using highly sensitive photomultiplier tube. Freshly isolated radish root cells exhibited spontaneous photon emission of about 4 counts sâ1. Addition of hydrogen peroxide to the cells caused significant enhancement in biophoton emission to about 500 counts sâ1. Removal of molecular oxygen using glucose/glucose oxidase system and scavengering of reactive oxygen species by reducing agents such are sodium ascorbate and cysteine completely diminished biophoton emission. Spectral analysis of the hydrogen peroxide-induced biophoton emission indicates that biophotons are emitted mainly in green-red region of the spectra. The data provided by electron paramagnetic resonance spin-trapping technique showed that formation of singlet oxygen observed after addition of H2O2 correlates with enhancement in biophoton emission. These observations provide direct evidence that singlet oxygen is involved in biophoton emission from radish root cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Plant Physiology and Biochemistry - Volume 48, Issues 2â3, FebruaryâMarch 2010, Pages 117-123
Journal: Plant Physiology and Biochemistry - Volume 48, Issues 2â3, FebruaryâMarch 2010, Pages 117-123
نویسندگان
Anshu Rastogi, Pavel PospÃÅ¡il,