Gibberellins in Immature Seeds of Pharbitis nil
نویسندگان
چکیده
منابع مشابه
Two new phenolic amides from the seeds of Pharbitis nil.
Two new phenolic amides, pharnilatins A (1) and B (2), were isolated from the seeds of Pharbitis nil. These new compounds possess a p-coumaroyl unit with a structurally unique side chain, (2S,3S)-2,3-dihydroxyputrescine. The chemical structures and absolute stereochemistries of the new compounds were determined on the basis of spectroscopic analyses including 1D- and 2D-NMR experiments and chem...
متن کاملDiterpene glycosides from the seeds of Pharbitis nil.
Six new ent-kaurane diterpene glycosides, pharbosides A-F (1-6), and a new ent-gibbane diterpene glycoside, pharboside G (7), together with three known ent-kaurane diterpenoids, 7beta,16beta,17-trihydroxy-ent-kauran-6alpha,19-olide (8), 6beta,7beta,16alpha,17-tetrahydroxy-ent-kauranoic acid (9), and 6beta,7beta,16beta,17-tetrahydroxy-ent-kauranoic acid (10), were isolated from an ethanolic extr...
متن کاملBioactive phenolic constituents from the seeds of Pharbitis nil.
Two new lignans, termed pharsyringaresinol (1) and pharbilignoside (2), a new phenylethanoid glycoside, termed pharbiniloside (3), and 22 known compounds, were isolated from the ethanol extract of the seeds of Pharbitis nil. The structures of the new compounds (1-3) were determined on the basis of spectroscopic analyses, including 2D-NMR and circular dichroism (CD) spectroscopy studies. Among t...
متن کاملGibberellins in Relation to Growth and Flowering in Pharbitis nil Chois.
Flowering can be modified by gibberellins (GAs) in Pharbitis nil Chois. in a complex fashion depending on GA type, dosage, and the timing of treatment relative to a single inductive dark period. Promotion of flowering occurs when GAs are applied 11 to 17 hours before a single inductive dark period. When applied 24 hours later the same GA dosage is inhibitory. Thus, depending on their activity a...
متن کاملCarbon Dioxide and Flowering in Pharbitis nil Choisy.
The effects of photoperiod on floral and vegetative development of Pharbitis nil were modified by atmospheric CO(2) concentrations maintained during plant growth. Short day (SD) photoperiods caused rapid flowering in Pharbitis plants growing in 0.03 or 0.1% CO(2), while plants in long day (LD) conditions remained vegetative. At 1 or 5% CO(2), however, flower buds were developed under both the S...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1971
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.35.583