Purification and some properties of fructan: fructan fructosyl transferase from dandelion ( Taraxacum officinale Weber)
نویسندگان
چکیده
منابع مشابه
Cloning, developmental, and tissue-specific expression of sucrose:sucrose 1-fructosyl transferase from Taraxacum officinale. Fructan localization in roots.
Sucrose:sucrose 1-fructosyl transferase (1-SST) is the key enzyme initiating fructan synthesis in Asteraceae. Using reverse transcriptase-PCR, we isolated the cDNA for 1-SST from Taraxacum officinale. The cDNA-derived amino acid sequence showed very high homology to other Asteracean 1-SSTs (Cichorium intybus 86%, Cynara scolymus 82%, Helianthus tuberosus 80%), but homology to 1-SST from Allium ...
متن کاملDandelion (Taraxacum officinale and T mongolicum)
Common Names The English name dandelion is a corruption of the French dent de leon, meaning “lion’s tooth.” The herb is similarly named in many Indo-European tongues, also being called “lion’s tooth” in German (Löwenzahn) and Spanish (diente de leon). The name refers to the toothed margins of the leaves. In both modern French and English, the name for dandelion reflects its diuretic nature—bein...
متن کاملFructan from Erwinia herbicola.
Levan production by strains of Erwinia herbicola is common, and this property has some taxonomic significance for species differentiation within the "herbicola" group. The extracellular polysaccharide elaborated by strain 403 was characterized by nuclear magnetic resonance spectroscopy and methylation analysis. Results showed it to be a typical bacterial levan.
متن کاملBiologically Active Substances and in Vitro Antioxidant Activity of Different Extracts from Dandelion (taraxacum Officinale) Roots
Dandelion (Taraxacum officinale L. Weber ex F.H. Wigg.) roots were traditionally used in folk medicine worldwide due to its antidiabetic, choleretic, antirheumatic and diuretic properties. The aim of the current study was to determinate the biologically active substances in 95% ethanol and subsequent water extracts from dandelion roots and to evaluate their antioxidant activities. The carbohydr...
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آنزیم تریپسین در شرایط قلیایی ناپایدار می باشد .و فعالیت پروتئولیتیکی تریپسین منجربه خود هضمی آن در جایگاههای خاصی می گردد. بنابر این آنزیمی با ناپایداری بالا محسوب میگردد. در سالهای اخیر موفق شدند که با ایجاد تغیرات شیمیایی با اضافه کردن فلزات خاص ، کلسیم و یا عمل استیلاسیون منجر به افزایش پایداری آنزیم تریپسین گردند. مطالعات در حال حاضر نشان می دهد که تریپسین استیله شده فعالیت آنزیمی خود را ...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 1993
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.1993.tb03755.x