Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Direct foliar uptake of phosphorus from desert dust
Year:
2021
Source of publication :
New Phytologist
Authors :
Erel, Ran
;
.
Volume :
Co-Authors:

Gross, A.
Tiwari, S.
Shtein, I.
Erel, R.

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Phosphorus (P) scarcity constrains plant growth in many ecosystems worldwide. In P-poor ecosystems, the biogeochemical paradigm links plant productivity with the deposition of P-rich dust originating from desert storms. However, dust P usually has low bioavailability and is thought to be utilized solely via roots. We applied desert dust on the leaf surface of P-deficient and P-sufficient wheat, chickpea and maize to test the feasibility of direct foliar uptake of dust-P and investigate its related acquisition mechanisms. Foliar dust doubled the growth of P-deficient chickpea and wheat, crops originating near the Syrian Desert. P deficiency stimulated several leaf modifications that enabled acquisition of up to 30% of the sparingly soluble dust-P that is conventionally perceived as unavailable. These modifications increased foliar dust capture, acidified the leaf surface and, in chickpea, enhanced exudation of P-solubilizing organic acids. Maize (originating far from deserts) displayed only a marginal response to dust. The dramatic response of chickpea and wheat in comparison to maize suggests that plants that evolved in dust-rich ecosystems adopted specialized utilization strategies. Interestingly, the abovementioned foliar responses are comparable to known P uptake root responses. Given that P limitation is almost universal, a foliar P uptake pathway will have significant ecological and agricultural implications.

Note:
Related Files :
desert dust
foliar uptake
leaf surface
organic exudates
Phosphorus
plant nutrition
Show More
Related Content
More details
DOI :
10.1111/nph.17344
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
Article in press
;
.
Language:
English
Editors' remarks:
ID:
54773
Last updated date:
02/03/2022 17:27
Creation date:
03/05/2021 14:35
Scientific Publication
Direct foliar uptake of phosphorus from desert dust

Gross, A.
Tiwari, S.
Shtein, I.
Erel, R.

Direct foliar uptake of phosphorus from desert dust

Phosphorus (P) scarcity constrains plant growth in many ecosystems worldwide. In P-poor ecosystems, the biogeochemical paradigm links plant productivity with the deposition of P-rich dust originating from desert storms. However, dust P usually has low bioavailability and is thought to be utilized solely via roots. We applied desert dust on the leaf surface of P-deficient and P-sufficient wheat, chickpea and maize to test the feasibility of direct foliar uptake of dust-P and investigate its related acquisition mechanisms. Foliar dust doubled the growth of P-deficient chickpea and wheat, crops originating near the Syrian Desert. P deficiency stimulated several leaf modifications that enabled acquisition of up to 30% of the sparingly soluble dust-P that is conventionally perceived as unavailable. These modifications increased foliar dust capture, acidified the leaf surface and, in chickpea, enhanced exudation of P-solubilizing organic acids. Maize (originating far from deserts) displayed only a marginal response to dust. The dramatic response of chickpea and wheat in comparison to maize suggests that plants that evolved in dust-rich ecosystems adopted specialized utilization strategies. Interestingly, the abovementioned foliar responses are comparable to known P uptake root responses. Given that P limitation is almost universal, a foliar P uptake pathway will have significant ecological and agricultural implications.

Scientific Publication
נגישות
menu      
You may also be interested in