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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
In vitro and in vivo modification of sugar transport and translocation in celery by phytohormones
Year:
1986
Source of publication :
Plant Science
Authors :
אלוני, בנימין
;
.
Volume :
46
Co-Authors:
Daie, J., Biology Department, Utah State University, Logan, UT, United States
Watts, M., Biology Department, Utah State University, Logan, UT, United States
Aloni, B., USDA, ARS, Logan, UT 84322, United States
Wyse, R.E., USDA, ARS, Logan, UT 84322, United States
Facilitators :
From page:
35
To page:
41
(
Total pages:
7
)
Abstract:
In an attempt to address the controversy in the literature as to whether phytohormones have any direct effect on phloem loading of sucrose, we investigated the effect of gibberellic acid (GA3) and indoleacetic acid (IAA) on sugar transport and translocation in celery (Apium graveolens L. cv. Utah 5270). Both hormones enhanced sucrose uptake into isolated vascular bundles and phloem tissue of celery and enhanced the export of 14C assimilates from leaves of intact plants in vivo. The hormone-induced increase of uptake into isolated vascular bundles or phloem was specific for sucrose and mannitol which are translocated in phloem. Furthermore, the hormone-induced increase in translocation was not due to an increase in sink demand, since neither glucose nor sucrose uptake rates were affected in the storage parenchyma tissue discs (sink region) in the presence of GA3 or IAA. The evidence suggests that phytohormones may have a direct effect on phloem loading of sucrose. The possibility of short-term GA3 and IAA effects on processes resulting in membrane transport of sugars in celery is discussed. © 1986.
Note:
Related Files :
export
gibberellic acid
indoleacetic acid
Invertase
mannitol
phloem loading
sucrose
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/0168-9452(86)90129-9
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25796
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:17
You may also be interested in
Scientific Publication
In vitro and in vivo modification of sugar transport and translocation in celery by phytohormones
46
Daie, J., Biology Department, Utah State University, Logan, UT, United States
Watts, M., Biology Department, Utah State University, Logan, UT, United States
Aloni, B., USDA, ARS, Logan, UT 84322, United States
Wyse, R.E., USDA, ARS, Logan, UT 84322, United States
In vitro and in vivo modification of sugar transport and translocation in celery by phytohormones
In an attempt to address the controversy in the literature as to whether phytohormones have any direct effect on phloem loading of sucrose, we investigated the effect of gibberellic acid (GA3) and indoleacetic acid (IAA) on sugar transport and translocation in celery (Apium graveolens L. cv. Utah 5270). Both hormones enhanced sucrose uptake into isolated vascular bundles and phloem tissue of celery and enhanced the export of 14C assimilates from leaves of intact plants in vivo. The hormone-induced increase of uptake into isolated vascular bundles or phloem was specific for sucrose and mannitol which are translocated in phloem. Furthermore, the hormone-induced increase in translocation was not due to an increase in sink demand, since neither glucose nor sucrose uptake rates were affected in the storage parenchyma tissue discs (sink region) in the presence of GA3 or IAA. The evidence suggests that phytohormones may have a direct effect on phloem loading of sucrose. The possibility of short-term GA3 and IAA effects on processes resulting in membrane transport of sugars in celery is discussed. © 1986.
Scientific Publication
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