Arid
DOI10.1111/1365-2435.12403
Differences in thallus chemistry are related to species-specific effects of biocrust-forming lichens on soil nutrients and microbial communities
Delgado-Baquerizo, Manuel1,2; Gallardo, Antonio1; Covelo, Felisa1; Prado-Comesana, Ana1; Ochoa, Victoria3; Maestre, Fernando T.3
通讯作者Delgado-Baquerizo, Manuel
来源期刊FUNCTIONAL ECOLOGY
ISSN0269-8463
EISSN1365-2435
出版年2015
卷号29期号:8页码:1087-1098
英文摘要

It is well-known that vascular plants have species-specific effects on soil properties. However, little is known on how individual species forming biocrusts, communities dominated by lichens, mosses and cyanobacteria that are prevalent in many ecosystems world-wide, affect microbial communities and soil variables related to nutrient cycling.


We evaluated the relationship of six biocrust-forming lichens (Buellia epipolia, Diploschistes diacapsis, Fulgensia subbracteata, Psora decipiens, Squamarina cartilaginea and Squamarina lentigera) with microbial abundance and multiple variables associated with soil nitrogen (N), carbon (C) and phosphorus (P) cycling and storage. We also evaluated whether the composition of lichen tissues (contents in C, N, P and polyphenols) is related to the C, N, P availability and microbial abundance in soils. Finally, we assessed what lichen species positively and negatively relate to soil fertility compared to bare ground areas without biocrusts.


We found contrasted C, N, P availability and soil microbial abundance under the different biocrust-forming lichens. Interestingly, inorganic P and amino acids were the most important factors differentiating lichen microsites. These differences in nutrient availability seem to be related to the C, N and P composition of the lichen tissues. For example, soils under D.diacapsis and P.decipiens, which had the lowest and highest C, N and P contents in their tissues, respectively, had the lowest and highest nutrient availability, respectively. We also found contrasted soil microbes abundance under the different soil lichens. For instance, F.subbracteata and D.diacapsis were negatively related to the abundance of bacteria compared to bare ground areas.


Our results support the idea that, as found with vascular plants, biocrust-forming lichens have species-specific effects on soil microbial communities and C, N and P cycling. Thus, continuing considering biocrusts as a unique entity will only add confusion to our knowledge of how they control nutrient availability and microbial abundance in the ecosystems where this key community is prevalent.


英文关键词amoA genes bacteria carbon cycle drylands fungi nitrogen cycle phosphorus cycle
类型Article
语种英语
国家Spain ; Australia
收录类别SCI-E
WOS记录号WOS:000358948500011
WOS关键词AMMONIA-OXIDIZING ARCHAEA ; ANTIMICROBIAL ACTIVITY ; CLIMATE-CHANGE ; CRUSTS ; NITROGEN ; CARBON ; DIVERSITY ; DESERT ; BIODIVERSITY ; RESPIRATION
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/187407
作者单位1.Univ Pablo de Olavide, Dept Sistemas Fis Quim & Nat, Seville 41013, Spain;
2.Univ Western Sydney, Hawkesbury Inst Environm, Penrith, NSW 2751, Australia;
3.Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Biol & Geol Fis & Quim Inorgan, Area Biodiversidad & Conservac, Mostoles 28933, Spain
推荐引用方式
GB/T 7714
Delgado-Baquerizo, Manuel,Gallardo, Antonio,Covelo, Felisa,et al. Differences in thallus chemistry are related to species-specific effects of biocrust-forming lichens on soil nutrients and microbial communities[J],2015,29(8):1087-1098.
APA Delgado-Baquerizo, Manuel,Gallardo, Antonio,Covelo, Felisa,Prado-Comesana, Ana,Ochoa, Victoria,&Maestre, Fernando T..(2015).Differences in thallus chemistry are related to species-specific effects of biocrust-forming lichens on soil nutrients and microbial communities.FUNCTIONAL ECOLOGY,29(8),1087-1098.
MLA Delgado-Baquerizo, Manuel,et al."Differences in thallus chemistry are related to species-specific effects of biocrust-forming lichens on soil nutrients and microbial communities".FUNCTIONAL ECOLOGY 29.8(2015):1087-1098.
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