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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Flowering response of Pharbitis nil to agents affecting cytoplasmic pH
Year:
1990
Authors :
פרידמן, חיה
;
.
Volume :
94
Co-Authors:
Friedman, H., Hebrew University of Jerusalem, Department of Horticulture, P. O. Box 12, Rehovot 76100, Israel
Spiegelstein, H., Hebrew University of Jerusalem, Department of Horticulture, P. O. Box 12, Rehovot 76100, Israel
Goldschmidt, E.E., Hebrew University of Jerusalem, Department of Horticulture, P. O. Box 12, Rehovot 76100, Israel
Halevy, A.H., Hebrew University of Jerusalem, Department of Horticulture, P. O. Box 12, Rehovot 76100, Israel
Facilitators :
From page:
114
To page:
119
(
Total pages:
6
)
Abstract:
Permeant weak acids and auxins have been shown to reduce the cytosplasmic pH in several systems. Lactic, citric, formic, butyric, salicylic, parahydroxybenzoic, propionic acid, and sodium propionate inhibited the flowering response of Pharbitis nil seedlings when applied immediately before an inductive dark period. The acidic auxins IAA, indolebutyric, and α-naphtaleneacetic acid, as well as the nonacidic auxin α-naphtaleneaceteamid, also inhibited the flowering response. Inhibition was generally more pronounced with a 12-hour than with a 16-hour dark period. Salicylic acid and sodium propionate shifted the response curve of the dark period by about 2 hours. Salicyclic acid, sodium propionate, and indolebutyric acid were inhibitory when applied during the first few hours of the dark period. The permeant weak bases NH4Cl, procaine, and trisodium citrate enhanced the flowering response. NH4Cl reduced the length of the critical dark period. The inhibition of flowering by acids and auxins as well as the promotion of flowering by bases was obtained even when only the cotyledons had been treated. The inhibition of floral induction by auxins may not be dependent on their effect on the cytoplasmic pH.
Note:
Related Files :
Ipomoea nil
עוד תגיות
תוכן קשור
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DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
23450
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:59
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Scientific Publication
Flowering response of Pharbitis nil to agents affecting cytoplasmic pH
94
Friedman, H., Hebrew University of Jerusalem, Department of Horticulture, P. O. Box 12, Rehovot 76100, Israel
Spiegelstein, H., Hebrew University of Jerusalem, Department of Horticulture, P. O. Box 12, Rehovot 76100, Israel
Goldschmidt, E.E., Hebrew University of Jerusalem, Department of Horticulture, P. O. Box 12, Rehovot 76100, Israel
Halevy, A.H., Hebrew University of Jerusalem, Department of Horticulture, P. O. Box 12, Rehovot 76100, Israel
Flowering response of Pharbitis nil to agents affecting cytoplasmic pH
Permeant weak acids and auxins have been shown to reduce the cytosplasmic pH in several systems. Lactic, citric, formic, butyric, salicylic, parahydroxybenzoic, propionic acid, and sodium propionate inhibited the flowering response of Pharbitis nil seedlings when applied immediately before an inductive dark period. The acidic auxins IAA, indolebutyric, and α-naphtaleneacetic acid, as well as the nonacidic auxin α-naphtaleneaceteamid, also inhibited the flowering response. Inhibition was generally more pronounced with a 12-hour than with a 16-hour dark period. Salicylic acid and sodium propionate shifted the response curve of the dark period by about 2 hours. Salicyclic acid, sodium propionate, and indolebutyric acid were inhibitory when applied during the first few hours of the dark period. The permeant weak bases NH4Cl, procaine, and trisodium citrate enhanced the flowering response. NH4Cl reduced the length of the critical dark period. The inhibition of flowering by acids and auxins as well as the promotion of flowering by bases was obtained even when only the cotyledons had been treated. The inhibition of floral induction by auxins may not be dependent on their effect on the cytoplasmic pH.
Scientific Publication
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