Tocopherols and leaf age in Xanthium strumarium L.
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چکیده
منابع مشابه
Whole Plant and Leaf Steady State Gas Exchange during Ethylene Exposure in Xanthium strumarium L.
The effects of ethylene evolved from ethephon on leaf and whole plant photosynthesis in Xanthium strumarium L. were examined. Ethylene-induced epinasty reduced light interception by the leaves of ethephon treated plants by up to 60%. Gas exchange values of individual, attached leaves under identical assay conditions were not inhibited even after 36 hours of ethylene exposure, although treated l...
متن کاملAbscisic Acid Metabolism in Relation to Water Stress and Leaf Age in Xanthium strumarium.
Intact plants of Xanthium strumarium L. were subjected to a water stress-recovery cycle. As the stress took effect, leaf growth ceased and stomatal resistance increased. The mature leaves then wilted, followed by the half expanded ones. Water, solute, and pressure potentials fell steadily in all leaves during the rest of the stress period. After 3 days, the young leaves lost turgor and the plan...
متن کاملEthnobotanical, phytochemical and toxicological studies of Xanthium strumarium L.
The present study describes the ethnobotanical, phytochemical, and toxicological evaluations of Xanthium strumarium L. growing in Bangladesh. In toxicity evaluation on rats, the methanol extract of seedlings showed mortality, while both seedling and mature plant extracts raised the serum alanine transaminase and aspartate transaminase values and produced significant abnormalities in the histopa...
متن کاملPhytochemical Screening and in Vitro Antimicrobial Investigation of the Methanolic Extract of Xanthium strumarium Leaf
Extract in organic solvent methanol of X. strumarium evaluated for their Phytochemical screening and antibacterial activities against eight pathogenic bacteria such as, Klebsiella pneumoniae NCIM 2719, Proteus vulgaris NCTC 8313, Pseudomonas aeruginosa ATCC 27853, Pseudomonas putida ATCC 12842, Salmonella typhimurium ATCC 23564, Bacillus cereus ATCC 12842, Bacillus subtilis ATCC 6633, Staphyloc...
متن کاملComparative Transcriptome Analysis Identifies Putative Genes Involved in the Biosynthesis of Xanthanolides in Xanthium strumarium L.
Xanthium strumarium L. is a traditional Chinese herb belonging to the Asteraceae family. The major bioactive components of this plant are sesquiterpene lactones (STLs), which include the xanthanolides. To date, the biogenesis of xanthanolides, especially their downstream pathway, remains largely unknown. In X. strumarium, xanthanolides primarily accumulate in its glandular trichomes. To identif...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1991
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1991.tb00569.x