Mastering ectomycorrhizal symbiosis: the impact of carbohydrates.

Mastering ectomycorrhizal symbiosis: the impact of carbohydrates. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Mastering ectomycorrhizal symbiosis: the impact of carbohydrates. Abstract Text:

Mycorrhiza formation is the consequence of a mutualistic interaction between certain soil fungi and plant roots that helps to overcome nutritional limitations faced by the respective partners. In symbiosis, fungi contribute to tree nutrition by means of mineral weathering and mobilization of nutrients from organic matter, and obtain plant-derived carbohydrates as a response. Support with easily degradable carbohydrates seems to be the driving force for fungi to undergo this type of interaction. As a consequence, the fungal hexose uptake capacity is strongly increased in Hartig net hyphae of the model fungi Amanita muscaria and Laccaria bicolor. Next to fast carbohydrate uptake and metabolism, storage carbohydrates are of special interest. In functional A. muscaria ectomycorrhizas, expression and activity of proteins involved in trehalose biosynthesis is mainly localized in hyphae of the Hartig net, indicating an important function of trehalose in generation of a strong carbon sink by fungal hyphae. In symbiosis, fungal partners receive up to approximately 19 times more carbohydrates from their hosts than normal leakage of the root system would cause, resulting in a strong carbohydrate demand of infected roots and, as a consequence, a more efficient plant photosynthesis. To avoid fungal parasitism, the plant seems to have developed mechanisms to control carbohydrate drain towards the fungal partner and link it to the fungus-derived mineral nutrition. In this contribution, current knowledge on fungal strategies to obtain carbohydrates from its host and plant strategies to enable, but also to control and restrict (under certain conditions), carbon transfer are summarized.

Mastering ectomycorrhizal symbiosis: the impact of carbohydrates. Publishing Authors By Initials

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Mastering ectomycorrhizal symbiosis: the impact of carbohydrates. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of experimental botany

VOLUME: 59

Page Numbers: 1097-108

Journal Abbreviation: J. Exp. Bot.

ISSN: 1460-2431

DAY: 13

MONTH: 02

YEAR: 2008

Mastering ectomycorrhizal symbiosis: the impact of carbohydrates. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9882906

Mastering ectomycorrhizal symbiosis: the impact of carbohydrates. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Mastering ectomycorrhizal symbiosis: the impact of carbohydrates. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Mastering ectomycorrhizal symbiosis: the impact of carbohydrates.

AFFILIATION: Universität Tübingen, Botanisches Institut, Physiologische Okologie der Pflanzen, Auf der Morgenstelle 1, D-72076 Tübingen, Germany. uwe.nehls@uni-tuebingen.de

Country: England

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Exp Bot

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Mastering ectomycorrhizal symbiosis: the impact of carbohydrates Related Publications

• Distribution of trichothecenes, zearalenone, and ergosterol in a fractionated wheat harvest lot.
• Ectomycorrhiza-mediated repression of the high-affinity ammonium importer gene AmAMT2 in Amanita muscaria.
• Mastering ectomycorrhizal symbiosis: the impact of carbohydrates.
• On the thermally induced isomerisation of hexabromocyclododecane stereoisomers.
• [Radiotherapy of cancer of the larynx]