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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Phosphate induced carboxylate and proton release by tomato roots
Year:
1997
Source of publication :
Plant and Soil
Authors :
בר-יוסף, בניהו
;
.
גנמור-נוימן, רות
;
.
Volume :
191
Co-Authors:
Imas, P., Agricultural Research Organization, Institute of Soils and Water, Bet-Dagan 50250, Israel
Bar-Yosef, B., Agricultural Research Organization, Institute of Soils and Water, Bet-Dagan 50250, Israel
Kafkafi, U., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, Israel
Ganmore-Neumann, R., Agricultural Research Organization, Institute of Soils and Water, Bet-Dagan 50250, Israel
Facilitators :
From page:
35
To page:
39
(
Total pages:
5
)
Abstract:
Exudation of carboxylic anions and protons by plant roots plays an important role in mobilizing soil P under P-deficiency conditions. The objective of this work was to quantify short-term (6h) carboxylate and H+ exudation by tomato roots in response to P concentration (0, 0.1,0.5 and 1.0 mM P) in nutrient solution (C(p)). The exudation rate of tri- and dicarboxylates decreased exponentially with increasing C(p), from 0.3 to 0.03 μmol plant-1 6h-1. At low C(p), the predominant exudates were fumarate, citrate and succinate, while at C(p)=0.5 and 1.0 mM the prevalent anions were succinate and citrate. The solution pH declined sharply as C(p) was lowered from 0.1 (pH=4.2) to 0 mM P (pH=3.7).
Note:
Related Files :
Carboxylic anions
pH
roots
tomato
עוד תגיות
תוכן קשור
More details
DOI :
10.1023/A:1004262730434
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
24936
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:11
Scientific Publication
Phosphate induced carboxylate and proton release by tomato roots
191
Imas, P., Agricultural Research Organization, Institute of Soils and Water, Bet-Dagan 50250, Israel
Bar-Yosef, B., Agricultural Research Organization, Institute of Soils and Water, Bet-Dagan 50250, Israel
Kafkafi, U., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, Israel
Ganmore-Neumann, R., Agricultural Research Organization, Institute of Soils and Water, Bet-Dagan 50250, Israel
Phosphate induced carboxylate and proton release by tomato roots
Exudation of carboxylic anions and protons by plant roots plays an important role in mobilizing soil P under P-deficiency conditions. The objective of this work was to quantify short-term (6h) carboxylate and H+ exudation by tomato roots in response to P concentration (0, 0.1,0.5 and 1.0 mM P) in nutrient solution (C(p)). The exudation rate of tri- and dicarboxylates decreased exponentially with increasing C(p), from 0.3 to 0.03 μmol plant-1 6h-1. At low C(p), the predominant exudates were fumarate, citrate and succinate, while at C(p)=0.5 and 1.0 mM the prevalent anions were succinate and citrate. The solution pH declined sharply as C(p) was lowered from 0.1 (pH=4.2) to 0 mM P (pH=3.7).
Scientific Publication
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