کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6372642 1624262 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fungal diversity increases soil fungistasis and resistance to microbial invasion by a non resident species
ترجمه فارسی عنوان
تنوع قارچ باعث افزایش فورگستاز خاک و مقاومت در برابر تهاجم میکروبی توسط گونه های غیر ساکن می شود
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
چکیده انگلیسی


- Fungal diversity affects soil fungistasis and bacterial invasion?
- Microcosms were assembled with fungal diversity ranging from 1 to 8 species.
- Soil fungistasis was inversely related to initial microcosm diversity.
- Bacteria capability to invade soil and rhizosphere decreased with microcosm diversity.
- Loss of fungal microbial diversity may adversely affect ecosystem functionality.

Biodiversity decline is a major concern for ecosystem functioning. Recent research efforts have been mostly focused on terrestrial plants, while, despite their importance in both natural and artificial ecosystems, little is known about soil microbial communities. This work aims at investigating the effects of fungal species richness on soil invasion by non resident microbes. Synthetic fungal communities with a species diversity ranging from 1 to 8 were assembled in laboratory microcosms and used in three factorial experiments to assess the effect of diversity on soil fungistasis, microbial invasion of soil amended with plant litter and of plant rhizosphere. The capability of different microbes to colonize environments characterized by different resident microbial communities was measured. The number of microbial species in the microcosms positively affected soil fungistasis that was also induced more rapidly in presence of synthetic communities with more species. Moreover, the increase of resident fungal diversity dramatically reduced the invasibility of both soil and plant rhizosphere. We found lower variability of soil fungistasis and invasibility in microcosms with higher species richness of microbial communities. Our study pointed out the existence of negative relationships between fungal diversity and soil invasibility by non resident microbes. Therefore, the loss of microbial species may adversely affect ecosystem functionality under specific environmental conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biological Control - Volume 72, May 2014, Pages 38-45
نویسندگان
, , , , ,