Microclimatic variation in UV perception and related disparity in tropane and quinolizidine alkaloid composition of Atropa acuminata, Lupinus polyphyllus and Hyoscyamus niger
Autor: | Javid A. Parray, Parvaiz Ahmad, Azra N. Kamili, Yashbir S. Bedi, Sumira Jan |
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Rok vydání: | 2016 |
Předmět: |
0106 biological sciences
0301 basic medicine Quinolizidines Pyridines Ultraviolet Rays Lupinus polyphyllus Sparteine Biophysics 01 natural sciences Gas Chromatography-Mass Spectrometry Hyoscyamus Atropa Absorbance 03 medical and health sciences chemistry.chemical_compound Alkaloids Piperidines Botany medicine Radiology Nuclear Medicine and imaging Hyoscyamine Principal Component Analysis Radiation Quinolizidine Radiological and Ultrasound Technology biology Plant Extracts Alkaloid Temperature Tropane biology.organism_classification Lupinus Plant Leaves 030104 developmental biology chemistry Hyoscyamus niger Tropane alkaloid Tropanes 010606 plant biology & botany medicine.drug |
Zdroj: | Journal of Photochemistry and Photobiology B: Biology. 161:230-235 |
ISSN: | 1011-1344 |
Popis: | The aim of current research was to evaluate the physiological adjustment in three medicinal herbs viz., Atropa acuminata, Lupinus polyphyllus and Hyoscyamus niger to the winter period characterised by intense UV flux in Kashmir valley across the North Western Himalaya. Quinolizidine (QA) and tropane alkaloid (TA) concentrations were analysed in these herbs thriving at two different altitudes via GC-MS and correlated by PCA analysis. This study investigated the hypothesis that UV reflectance and absorbance at low temperatures are directly related to disparity in alkaloid accumulation. Among QAs in L. polyphyllus, ammodendrine and lupanine accumulated at higher concentration and exhibited significant variation of 186.36% and 95.91% in ammodendrine and lupanine respectively in both sites. Tetrahydrohombifoline displayed non-significant variation of about 9.60% irrespective of sites. Among tropane alkaloid (TA), hyoscyamine was recorded as the most abundant constituent irrespective of the plant and site while apotropine accumulated in lesser quantity in A. acuminata than H. niger. However, apotropine demonstrated significant variation of 175% among both sites. The final concentration of quinolizidine (QA) and tropane alkaloid (TA) reflects the interplay between reflectance and absorbance of UV radiation response field. These findings suggest that spectral response of UV light contributes directly to alkaloid biosynthesis. |
Databáze: | OpenAIRE |
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