Scutellospora calospora (Nicol. & Gerd.) Walker & Sanders associated with subterranean clover produces non-infective hyphae during sporulation

Subterranean clover (Trifolium subterraneum L.) inoculated with either Scutellospora calospora (Nicol. & Gerd.) Walker & Sanders or Glomus sp. (WUM 10(1)) was grown in 3 kg of Lancelin sand surrounding a fine mesh bag (< 38 μm) filled with 400 g of steamed sand. The mesh size was chosen t...

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Détails bibliographiques
Publié dans:The New phytologist. - 1984. - 127(1994), 4 vom: 25. Aug., Seite 697-701
Auteur principal: Pearson, J N (Auteur)
Autres auteurs: Schweiger, P
Format: Article en ligne
Langue:English
Publié: 1994
Accès à la collection:The New phytologist
Sujets:Journal Article Glomus Scutellospora arbuscular mycorrhizas sporulation subterranean clover
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245 1 0 |a Scutellospora calospora (Nicol. & Gerd.) Walker & Sanders associated with subterranean clover produces non-infective hyphae during sporulation 
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520 |a Subterranean clover (Trifolium subterraneum L.) inoculated with either Scutellospora calospora (Nicol. & Gerd.) Walker & Sanders or Glomus sp. (WUM 10(1)) was grown in 3 kg of Lancelin sand surrounding a fine mesh bag (< 38 μm) filled with 400 g of steamed sand. The mesh size was chosen to allow hyphae to penetrate but to exclude plant roots. Every week, from 3 wk after planting the original plants, subterranean clover seeds were sown into the sand inside the mesh bags. The last sowing date was 8 wk from sowing of the original plants. The seedlings, with their roots growing inside the mesh bags, were allowed to grow for 3 wk. At that stage the seedlings and the original plants were harvested and their roots assessed for mycorrhizal colonization. The percentage of root length of the original plants colonized by S. calospora decreased from the first harvest onwards, while colonization by Glomus sp. maintained a similar level at all harvests. Seedlings growing in pots whose original plants were colonized by S. calospora had a her percentage of root length colonized at the first two harvests but levels of Colonization decreased substantially thereafter. Seedlings in the Glomus sp. treatment on the other hand, had similar levels of colonization at all but the last harvest. The length of hyphae g-1 soil in the mesh hues increased throughout the experiment for both fungi. However, the length of hyphae in the S. calospora treatment increased at a faster rate. Spore production by S. calospora commenced 7 wk after sowing the original plants. These results indicate that the hyphae produced by S. colospora after internal colonization had stopped increasing were largely non-infective, and that these hyphae are primarily involved in the production of spores 
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700 1 |a Schweiger, P  |e verfasserin  |4 aut 
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