Phosphatase activities of arbuscular mycorrhizal intraradical
(2002) In Mycological Research 106(10). p.1224-1224- Abstract
- We investigated the influence of changes in external phosphorus (P) concentration on the proportion of phosphatase-active structures of the arbuscular mycorrhizal fungus Gigaspora margarita associated with Allium cepa. The P treatment was started when mycorrhizal colonisation had been established, and plant systems were harvested three times after the start of the P treatment. Higher shoot dry weights and P contents were observed in the high-P treated plants at the last harvest. We did not find any change in the proportion of phosphatase-active extraradical mycelium following P treatment. However, the proportion of alkaline phosphatase-active mycelium was positively correlated for extraradical and intraradical mycelium. Also, the... (More)
- We investigated the influence of changes in external phosphorus (P) concentration on the proportion of phosphatase-active structures of the arbuscular mycorrhizal fungus Gigaspora margarita associated with Allium cepa. The P treatment was started when mycorrhizal colonisation had been established, and plant systems were harvested three times after the start of the P treatment. Higher shoot dry weights and P contents were observed in the high-P treated plants at the last harvest. We did not find any change in the proportion of phosphatase-active extraradical mycelium following P treatment. However, the proportion of alkaline phosphatase-active mycelium was positively correlated for extraradical and intraradical mycelium. Also, the proportion of alkaline phosphatase-active arbuscules seemed to increase with the shoot fresh weight, whereas the proportion of acid phosphatase-active arbuscules decreased with higher shoot P concentration and dry weight. We have shown experimentally that the intraradical mycelium of G. margarita, but not the extraradical mycelium, responds metabolically to plant P concentration, and possibly also to external P availability. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/149423
- author
- van Aarle, Ingrid LU ; Rouhier, Hervé LU and Saito, M
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Mycological Research
- volume
- 106
- issue
- 10
- pages
- 1224 - 1224
- publisher
- Cambridge University Press
- external identifiers
-
- wos:000180090000011
- scopus:0036818358
- ISSN
- 0953-7562
- DOI
- 10.1017/S0953756202006470
- language
- English
- LU publication?
- yes
- id
- 55c4ea32-ff9f-4875-978f-0b0514dfb952 (old id 149423)
- date added to LUP
- 2016-04-01 12:13:34
- date last changed
- 2023-05-02 08:56:12
@article{55c4ea32-ff9f-4875-978f-0b0514dfb952,
abstract = {{We investigated the influence of changes in external phosphorus (P) concentration on the proportion of phosphatase-active structures of the arbuscular mycorrhizal fungus Gigaspora margarita associated with Allium cepa. The P treatment was started when mycorrhizal colonisation had been established, and plant systems were harvested three times after the start of the P treatment. Higher shoot dry weights and P contents were observed in the high-P treated plants at the last harvest. We did not find any change in the proportion of phosphatase-active extraradical mycelium following P treatment. However, the proportion of alkaline phosphatase-active mycelium was positively correlated for extraradical and intraradical mycelium. Also, the proportion of alkaline phosphatase-active arbuscules seemed to increase with the shoot fresh weight, whereas the proportion of acid phosphatase-active arbuscules decreased with higher shoot P concentration and dry weight. We have shown experimentally that the intraradical mycelium of G. margarita, but not the extraradical mycelium, responds metabolically to plant P concentration, and possibly also to external P availability.}},
author = {{van Aarle, Ingrid and Rouhier, Hervé and Saito, M}},
issn = {{0953-7562}},
language = {{eng}},
number = {{10}},
pages = {{1224--1224}},
publisher = {{Cambridge University Press}},
series = {{Mycological Research}},
title = {{Phosphatase activities of arbuscular mycorrhizal intraradical}},
url = {{https://lup.lub.lu.se/search/files/2835146/625228.pdf}},
doi = {{10.1017/S0953756202006470}},
volume = {{106}},
year = {{2002}},
}