DOI: 10.1016/j.foreco.2013.08.052
Scopus记录号: 2-s2.0-84884377070
论文题名: Linking mycorrhizal fungi and soil nutrients to vegetative and reproductive ruderal plant development in a fragmented forest at central Argentina
作者: Grilli G. ; Urcelay C. ; Galetto L.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 310 起始页码: 442
结束页码: 449
语种: 英语
英文关键词: Arbuscular mycorrhizal fungi
; Dark septate endophyte
; Forest fragmentation
; Nutrient availability
; Plant invasions
; Plant sexual reproduction
Scopus关键词: Arbuscular mycorrhizal fungi
; Dark septate endophyte
; Forest fragmentations
; Nutrient availability
; Plant invasion
; Plant sexual reproduction
; Forestry
; Fruits
; Fungi
; Soils
; Nutrients
; agricultural land
; arbuscular mycorrhiza
; biological invasion
; biomass
; colonization
; deforestation
; dicotyledon
; endophyte
; fruit production
; fungus
; growth rate
; habitat fragmentation
; nutrient availability
; pollen
; reproductive success
; sexual reproduction
; soil nutrient
; vegetative reproduction
; Argentina
; Chaco [Argentina]
英文摘要: We studied the actual links between mycorrhizal fungi, nutrient availability and plant development in several sites of fragmented Chaco forests. Specifically, we evaluated whether arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) colonization and availability of soil nutrients are related to growth (biomass and plant height) and reproductive traits (pollen size and pollen and fruit production) of two ruderal, annual, congeneric Euphorbia species along a gradient of forest fragmentation. We assessed relationships between forest fragment size and isolation, nutrient availability, mycorrhizal fungal variables and plant development at eleven Chaquean forest fragments (0.5-1000. ha) immersed in an agricultural landscape in central Argentina. Mycorrhizal colonization was not related to forest fragment isolation, positively related to forest fragment size and negatively related to soil nutrient availability in both hosts along the fragmentation gradient. Plant reproductive and vegetative traits were related to mycorrhizal colonization. In general, plant height, biomass, and fruit production were negatively related to AMF, and pollen production was positively related to DSE, in both ruderal hosts (native and exotic). We found remarkable relationships along a forest fragmentation gradient that reliably link forest fragment size to lower nutrient availability and increased mycorrhizal colonization in native/exotic ruderal hosts, while negatively linking AMF colonization to plant development and reproductive success. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66234
Appears in Collections: 影响、适应和脆弱性
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作者单位: Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC), Vélez Sarsfield 1611, CC 495, 5000 Córdoba, Argentina; FCEFyN, Universidad Nacional de Córdoba, Córdoba, Argentina
Recommended Citation:
Grilli G.,Urcelay C.,Galetto L.. Linking mycorrhizal fungi and soil nutrients to vegetative and reproductive ruderal plant development in a fragmented forest at central Argentina[J]. Forest Ecology and Management,2013-01-01,310