Oomycete Soil Diversity Associated with Betula and Alnus in Forests and Urban Settings in the Nordic-Baltic Region

被引：1

作者：

Riit, Taavi ^{[1
]}

Cleary, Michelle ^{[2
]}

Adamson, Kalev ^{[1
]}

Blomquist, Mimmi ^{[2
]}

Burokiene, Daiva ^{[3
]}

Marciulyniene, Diana ^{[2
,4
]}

Oliva, Jonas ^{[5
,6
]}

Poimala, Anna ^{[7
]}

Redondo, Miguel Angel ^{[8
]}

Stromeng, Gunn Mari ^{[9
]}

Talgo, Venche ^{[9
]}

Tedersoo, Leho ^{[10
]}

Thomsen, Iben Margrete ^{[11
]}

Uimari, Anne ^{[12
]}

Witzell, Johanna ^{[2
,13
]}

Drenkhan, Rein ^{[1
]}

机构：

[1] Estonian Univ Life Sci, Inst Forestry & Engn, FR Kreutzwaldi 5, EE-51006 Tartu, Estonia

[2] Swedish Univ Agr Sci, Southern Swedish Forest Res Ctr, Sundsvagen 3, S-23053 Alnarp, Sweden

[3] Nat Res Ctr, Akad Str 2, LT-08412 Vilnius, Lithuania

[4] Inst Forestry, Lithuanian Res Ctr Agr & Forestry, Liepu Str 1, LT-53101 Girionys, Lithuania

[5] Univ Lleida, Dept Agr & Forest Sci & Engn, Lleida 25198, Spain

[6] Joint Res Unit CTFC Agrotecnio, Lleida 25198, Spain

[7] Nat Resources Inst Finland LUKE, Latokartanonkaari 9, Helsinki 00790, Finland

[8] Swedish Univ Agr Sci, Dept Forest Mycol & Plant Pathol, POB 7026, S-75007 Uppsala, Sweden

[9] Norwegian Inst Bioecon Res, NIBIO, Hogskoleveien 7, N-1433 As, Norway

[10] Univ Tartu, Mycol & Microbiol Ctr, J Liivi 2, EE-50409 Tartu, Estonia

[11] Univ Copenhagen, Dept Geosci & Nat Resource Management, Rolighedsvej 23, DK-1958 Frederiksberg C, Denmark

[12] Nat Resources Inst Finland LUKE, Juntintie 154, Suonenjoki 77600, Finland

[13] Linnaeus Univ, Dept Forestry & Wood Technol, Vaxjo, Sweden

来源：

JOURNAL OF FUNGI | 2023年 / 9卷 / 09期

基金：

瑞典研究理事会;

关键词：

oomycete community; metabarcoding; soil community; soil microbe; Phytophthora; plant pathogen; CHANGE-RELATED STRESSORS; SAPROLEGNIA-PARASITICA; PHYTOPHTHORA; CLIMATE; PATHOGENICITY; FUNGAL; COMMUNITY; SEEDLINGS;

D O I：

10.3390/jof9090926

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

This study aimed to determine the differences and drivers of oomycete diversity and community composition in alder- and birch-dominated park and natural forest soils of the Fennoscandian and Baltic countries of Estonia, Finland, Lithuania, Norway, and Sweden. For this, we sequenced libraries of PCR products generated from the DNA of 111 soil samples collected across a climate gradient using oomycete-specific primers on a PacBio high-throughput sequencing platform. We found that oomycete communities are most affected by temperature seasonality, annual mean temperature, and mean temperature of the warmest quarter. Differences in composition were partly explained by the higher diversity of Saprolegniales in Sweden and Norway, as both total oomycete and Saprolegniales richness decreased significantly at higher longitudes, potentially indicating the preference of this group of oomycetes for a more temperate maritime climate. None of the evaluated climatic variables significantly affected the richness of Pythiales or Peronosporales. Interestingly, the relative abundance and richness of Pythiales was higher at urban sites compared to forest sites, whereas the opposite was true for Saprolegniales. Additionally, this is the first report of Phytophthora gallica and P. plurivora in Estonia. Our results indicate that the composition of oomycetes in soils is strongly influenced by climatic factors, and, therefore, changes in climate conditions associated with global warming may have the potential to significantly alter the distribution range of these microbes, which comprise many important pathogens of plants.

引用

页数：16