| Title |
Impact of long-term conventional and organic farming on the diversity of arbuscular mycorrhizal fungi
|
|---|---|
| Published in |
Oecologia, January 2004
|
| DOI | 10.1007/s00442-003-1458-2 |
| Pubmed ID | |
| Authors |
Fritz Oehl, Ewald Sieverding, Paul Mäder, David Dubois, Kurt Ineichen, Thomas Boller, Andres Wiemken |
| Abstract |
Previous work has shown considerably enhanced soil fertility in agroecosystems managed by organic farming as compared to conventional farming. Arbuscular mycorrhizal fungi (AMF) play a crucial role in nutrient acquisition and soil fertility. The objective of this study was to investigate the diversity of AMF in the context of a long-term study in which replicated field plots, at a single site in Central Europe, had been cultivated for 22 years according to two "organic" and two "conventional" farming systems. In the 23rd year, the field plots, carrying an 18-month-old grass-clover stand, were examined in two ways with respect to AMF diversity. Firstly, AMF spores were isolated and morphologically identified from soil samples. The study revealed that the AMF spore abundance and species diversity was significantly higher in the organic than in the conventional systems. Furthermore, the AMF community differed in the conventional and organic systems: Glomus species were similarly abundant in all systems but spores of Acaulospora and Scutellospora species were more abundant in the organic systems. Secondly, the soils were used to establish AMF-trap cultures using a consortium of Plantago lanceolata, Trifolium pratense and Lolium perenne as host plants. The AMF spore community developing in the trap cultures differed: after 12 months, two species of the Acaulosporaceae (A. paulinae and A. longula) were consistently found to account for a large part of the spore community in the trap cultures from the organic systems but were found rarely in the ones from the conventional systems. The findings show that some AMF species present in natural ecosystems are maintained under organic farming but severely depressed under conventional farming, indicating a potentially severe loss of ecosystem function under conventional farming. |
X Demographics
The data shown below were collected from the profiles of 8 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 13% |
| Australia | 1 | 13% |
| Unknown | 6 | 75% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 8 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 490 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 4 | <1% |
| Brazil | 4 | <1% |
| France | 3 | <1% |
| Canada | 3 | <1% |
| Italy | 2 | <1% |
| Argentina | 2 | <1% |
| Slovenia | 2 | <1% |
| Australia | 1 | <1% |
| India | 1 | <1% |
| Other | 5 | 1% |
| Unknown | 463 | 94% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 87 | 18% |
| Researcher | 86 | 18% |
| Student > Master | 71 | 14% |
| Student > Bachelor | 61 | 12% |
| Student > Doctoral Student | 28 | 6% |
| Other | 72 | 15% |
| Unknown | 85 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 274 | 56% |
| Environmental Science | 67 | 14% |
| Earth and Planetary Sciences | 8 | 2% |
| Social Sciences | 7 | 1% |
| Biochemistry, Genetics and Molecular Biology | 6 | 1% |
| Other | 30 | 6% |
| Unknown | 98 | 20% |
Attention Score in Context
This research output has an Altmetric Attention Score of 5. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 16 June 2023.
All research outputs
#6,991,202
of 25,452,734 outputs
Outputs from Oecologia
#1,422
of 4,509 outputs
Outputs of similar age
#29,674
of 146,141 outputs
Outputs of similar age from Oecologia
#5
of 20 outputs
Altmetric has tracked 25,452,734 research outputs across all sources so far. This one has received more attention than most of these and is in the 72nd percentile.
So far Altmetric has tracked 4,509 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.2. This one has gotten more attention than average, scoring higher than 68% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 146,141 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 79% of its contemporaries.
We're also able to compare this research output to 20 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 80% of its contemporaries.