NDLI: Arbuscular mycorrhizas in southeastern Australian processing tomato farm soils

Content Provider	Springer Nature Link
Author	Cavagnaro, Timothy Richard Martin, Ashley W.
Copyright Year	2010
Abstract	Here we report the results of a study of the formation and functioning of AM in processing tomato farm soils from across southeastern Australia. In a survey, which included the majority of processing tomato producers in the industry, mycorrhizal colonization of roots was generally low, and in many instances, completely absent. This result can be explained by the use of soil fumigants on many farms. While previous cropping history did not explain levels of AM colonization, the proportion of mycorrhizal crops in the rotation had an influence on soil C, which was generally low across most sites. In an effort to further explore the functioning of AM, a targeted glasshouse experiment was undertaken, in which a mycorrhiza defective tomato mutant and its mycorrhizal wild-type progenitor were grown under uniform conditions. While AM colonization of plants was highest when grown in soil collected from an un-farmed site in this glasshouse experiment, AM provided a greater benefit (in terms of root Zn nutrition) when grown in soil collected from more fertile farm sites. Together, these data indicate that farm management decisions (in this case soil fumigation) may have consequences for the formation of AM, which in turn, may reduce the benefits of AM in these farm soils.
Starting Page	327
Ending Page	336
Page Count	10
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	340
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-11-06
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arbuscular mycorrhizas Farm soil survey Glasshouse Mycorrhiza defective tomato mutant (rmc) Soil fumigation Tomato (Solanum lycopersicum L.) Plant Physiology Plant Sciences Soil Science & Conservation Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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