Temat: Hieracium pilosella - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Sterol composition from inflorescences of Hieracium pilosella L.
Autorzy:: Gawronska-Grzywacz, M
Krzaczek, T.
Powiązania:: https://bibliotekanauki.pl/articles/58616.pdf
Data publikacji:: 2006
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: sterol composition
inflorescence
Hieracium pilosella
Compositae
phytosterol
Opis:: The fraction of sterol acetates from the inflorescences of Hieracium pilosella has been isolated in the typical way from petroleum ether extract. By means of the weight method the total amount of sterols was determined (0.2659%). The mixtures of sterol acetates and free sterols were investigated using GC-MS techniques. The occurrence of about 18 sterols has been observed. Cholesterol, cholest-8(14)-en-3b-ol, cholesta-5.7-dien-3b-ol, cholest-7-en-3b-ol, ergosta-5.24-dien-3b-ol, campesterol, stigmasterol, b-sitosterol, fucosterol, 5a-stigmast-7-en-3a-ol were identified. The probable structures of lophenol, isofucosterol, 5a-stigmasta-7.24-dien-3b-ol, lanosta-9(11).24-dien-3b-ol and 24-ethylidene lophenol were stated on the basis of literature data. The last 4 sterols occur in a vestigial quantity, which made its identification impossible. Sitos erol and cholesterol are remarkably dominating sterols in the fraction.
Źródło:: Acta Societatis Botanicorum Poloniae; 2006, 75, 1; 29-32
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Flavonoids and coumarins from Hieracium pilosella L. [Asteraceae]
Autorzy:: Gawronska-Grzywacz, M
Krzaczek, T.
Powiązania:: https://bibliotekanauki.pl/articles/59337.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: weed
flavonoids
invasive weed
mouse-ear hawkweed
coumarin
herb
Compositae
Hieracium pilosella
Opis:: Typical chromatographic methods were successfully applied to isolate nine flavonoid compounds and two coumarin glycosides from the inflorescences and the herb of Hieracium pilosella L. Repeated column chromatography, occasionally paper chromatography and recrystallization made the separation of three flavonoid aglycones and six glycosides - possible. Coumarin glycosides were isolated by preparative thin layer chromatography. Subsequent UV, NMR and MS analyses have led to identification of the following flavonoid derivatives: known for the species - apigenin, luteolin, luteolin 7-O- ß-glucopyranoside, luteolin 4’-O-ß-glucopyranoside, isoetin 7-O-ß- -glucopyranoside, isoetin 4’-O-ß-glucuronide and new for the species – kaempferol 3-methyl ether and apigenin 7-O-ß-glucopyranoside. Third isoetin glycoside contained two different sugar moieties: xylose and glucose, probably attached to the hydroxyl groups at C-4’ or C-4’ and C-2’(or 5’) of an aglycone. Umbelliferone 7-O-ß-glucopyranoside (skimmin) and new for the genus Hieracium esculetin 7-O-ß-glucopyranoside (cichoriin) were determined by NMR and MS methods.
Źródło:: Acta Societatis Botanicorum Poloniae; 2009, 78, 3; 189-195
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Free and bound phenolic acids in inflorescences and rhizomes with roots of Hieracium pilosella L. [Asteraceae]
Autorzy:: Gawronska-Grzywacz, M
Krzaczek, T.
Powiązania:: https://bibliotekanauki.pl/articles/58360.pdf
Data publikacji:: 2006
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: free phenolic acid
bound phenolic acid
phenolic acid
inflorescence
rhizome
root
Hieracium pilosella
Compositae
Opis:: The analysis of the fractions of free and bound, liberated by hydrolysis, phenolic acids in the inflorescences and rhizomes with roots of Hieracium pilosella L. was conducted by 2D-TLC and RP-HPLC methods. In the inflorescences fourteen phenolic acids were found: chlorogenic, gallic, protocatechuic, homoprotocatechuic, caffeic, gentisic, p-hydroxyphenylacetic, p-hydroxybenzoic, m-hydroxybenzoic, p-coumaric, syringic, vanillic, ferulic and salicylic. In the rhizomes with roots nine phenolic acids were identified: chlorogenic, gallic, homoprotocatechuic, caffeic, gentisic, p- hydroxyphenylacetic, p-hydroxybenzoic, syringic and vanillic. By means of the RP-HPLC method the contents of major acids were estimated which ranged from 0.01 mg% up to 139.50 mg%. Caffeic acid is the remarkably dominating constituent of both plant materials. Phenolic compounds may contribute to invasiveness and medicinal properties of this species.
Źródło:: Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 215-218
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Chromosome numbers in Hieracium and Pilosella (Asteraceae) from Central and Southeastern Europe
Autorzy:: Ilnicki, T.
Szelag, Z.
Powiązania:: https://bibliotekanauki.pl/articles/19681.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: chromosome number
Hieracium
Pilosella
Compositae
Europe
karyotype
species list
Opis:: Chromosome numbers of 46 Hieracium L. and Pilosella Vaill. taxa from Austria, Bulgaria, Czech Republic, Macedonia, Montenegro, Poland, Romania, Serbia and Slovakia are presented. Chromosomes numbers are given for the first time for Hieracium amphigenum Briq. 2n = 3x = 27, H. bohatschianum Zahn 2n = 4x = 36, H. borbasii R. Uechtr. 2n = 4x = 36, H. cernuum Friv. 2n = 2x = 18, H. hazslinszkyi Pax 2n = 3x = 27, H. mirekii Szeląg 2n = 4x = 36, H. polyphyllobasis (Nyár. & Zahn) Szeląg 2n = 3x = 27, H. porphyriticum A. Kern. 2n = 4x = 36, H. racemosum Waldst. & Kit. ex Willd. subsp. racemosum 2n = 3x = 27, H. scardicum Borm. & Zahn 2n = 4x = 36, H. sparsum subsp. ipekanum Rech. fil. & Zahn 2n = 4x = 36, H. sparsum subsp. peristeriense Behr & Zahn, H. sparsum subsp. squarrosobracchiatum Behr & al. 2n = 3x = 27, H. tomosense Simk. 2n = 4x = 36, H. tubulare Nyár. 2n = 4x = 36, H. werneri Szeląg 2n = 3x = 27 and Pilosella fusca subsp. subpedunculata (Zahn) Szeląg, as well as five species of Hieracium sect. Cernua R. Uechtr. not described to date and a hybrid between H. bifidum s. lat. and H. pojoritense Woł.
Źródło:: Acta Biologica Cracoviensia. Series Botanica; 2011, 53, 1
0001-5296
Pojawia się w:: Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:: Biblioteka Nauki

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