Long-term effects of plant diversity and composition on soil nematode communities in model grasslands

Ecology ◽  
2009 ◽  
Vol 90 (1) ◽  
pp. 90-99 ◽  
Author(s):  
Maria Viketoft ◽  
Janne Bengtsson ◽  
Björn Sohlenius ◽  
Matty P. Berg ◽  
Owen Petchey ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Soil Nematode ◽  
Long Term Effects ◽  
Nematode Communities ◽  
Soil Nematode Communities

Long-term effects of a wildfire on the soil nematode communities in the spruce forest ecosystem of High Tatra National Park

2015 ◽  
Vol 24 (5) ◽  
pp. 702 ◽  
Author(s):  
Marek Renčo ◽  
Andrea Čerevková
Keyword(s):  
Forest Ecosystem ◽  
Diversity Index ◽  
Control Plot ◽  
Parasitic Nematodes ◽  
Soil Nematode ◽  
Spruce Forest ◽  
Long Term Effects ◽  
Species Diversity Index ◽  
Nematode Communities ◽  
Soil Nematode Communities

This study evaluated the effect of a wildfire on soil nematode communities in the spruce forest ecosystem of the High Tatra Mountains 8 years after the fire. Two plots were established, an intact control plot (REF) and a fire-damaged plot after a windstorm (FIR). A total of 20 representative soil samples were collected; 10 from each site (five in June and five in October). A total of 64 species of nematodes were recorded. The mean number of species 8 years after the fire ranged from 24 to 36 and was always significantly higher in REF than in FIR (P < 0.05); with a significantly higher Shannon–Weaver diversity index in REF. Bacterivores were the most abundant trophic group at both sites. Omnivores were more abundant in FIR than in REF, and predators were more abundant in REF. The most abundant species at both sites were Acrobeloides nanus, Aglenchus agricola, Malenchus exiguus and Paratylenchus microdorus. Epidermal or root-hair feeders, mainly Malenchus exiguus, were the most abundant plant-parasitic nematodes at both sites, followed by the ectoparasitic P. microdorus. The migratory endoparasite, Pratylenchus pratensis, was found only in FIR in relatively high numbers, whereas the ectoparasitic species Criconemoides morgensis, Crossonema menzeli and Ogma cobbi occupied only REF. Nematode abundance and species diversity index differed significantly between the disturbed and undisturbed habitats, but ecological and functional indices and metabolic footprints indicate that the soil ecosystem 8 years after the fire had recovered, with moderate levels of nutrient enrichment comparable to those of the control plot.

Temporal dynamics of soil nematode communities in a grassland plant diversity experiment

2011 ◽  
Vol 43 (5) ◽  
pp. 1063-1070 ◽  
Author(s):  
Maria Viketoft ◽  
Björn Sohlenius ◽  
Sven Boström ◽  
Cecilia Palmborg ◽  
Jan Bengtsson ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Temporal Dynamics ◽  
Soil Nematode ◽  
Nematode Communities ◽  
Soil Nematode Communities

Carbofuran effects in soil nematode communities: Using trait and taxonomic based approaches

2011 ◽  
Vol 74 (7) ◽  
pp. 2002-2012 ◽  
Author(s):  
Sónia Chelinho ◽  
Klaus Dieter Sautter ◽  
Anabela Cachada ◽  
Isabel Abrantes ◽  
George Brown ◽  
...  
Keyword(s):  
Soil Nematode ◽  
Nematode Communities ◽  
Soil Nematode Communities

The long-term effects of monoculture maize cultivation on plant diversity

2021 ◽  
Vol 50 (4) ◽  
pp. 397-408
Author(s):  
Anneliese Fuchs ◽  
Vanessa Berger ◽  
Klaus Steinbauer ◽  
Tobias Köstl ◽  
Daniel Wuttej ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Long Term Effects ◽  
Maize Cultivation

scholarly journals Soil nematode communities associated with hazelnut orchards in Turkey

2014 ◽  
Vol 6 (8) ◽  
pp. 112-121 ◽  
Author(s):  
Akyazi Faruk ◽  
Yildiz Senol ◽  
Firat Felek Anil
Keyword(s):  
Soil Nematode ◽  
Nematode Communities ◽  
Soil Nematode Communities

scholarly journals Application of PCR-DGGE method for identification of nematode communities in pepper growing soil

2016 ◽  
Vol 7 (1) ◽  
pp. 9-14
Author(s):  
Duong Duc Hieu
Keyword(s):  
Maximum Likelihood ◽  
Community Sample ◽  
Nematode Species ◽  
Viet Nam ◽  
Soil Nematode ◽  
Nematode Communities ◽  
Maximum Likelihood Tree ◽  
Relationship Of ◽  
First Time ◽  
Soil Nematode Communities

Soil nematodes play an important role in indication for assessing soil environments and ecosystems. Previous studies of nematode community analyses based on molecular identification have shown to be useful for assessing soil environments. Here we applied PCR-DGGE method for molecular analysisoffive soil nematode communities (designed as S1 to S5) collected from four provinces in Southeastern Vietnam (Binh Duong, Ba Ria Vung Tau, Binh Phuoc and Dong Nai) based on SSU gene. By sequencing DNA bands derived from S5 community sample, our data show 15 species containing soil nematode, other nematode and non-nematode (fungi) species. Genus Meloidogyne was found as abundant one. The genetic relationship of soil nematode species in S5 community were determined by Maximum Likelihood tree re-construction based on SSU gene. This molecular approach is applied for the first time in Vietnam for identification of soil nematode communities. Tuyến trùng đất đóng vai trò chỉ thị quan trọng trong công tác đánh giá môi trường và hệ sinh thái đất. Các nghiên cứu trước đây đã cho thấy lợi ích của việc phân tích cộng đồng tuyến trùng đất bằng định danh sinh học phân tử đối với việc đánh giá môi trường đất. Ở đây, chúng tôi ứng dụng phương pháp PCR-DGGE dựa trên gene SSU để phân tích năm (ký hiệu từ S1 đến S5) cộng đồng tuyến trùng đất thuộc các vùng trồng chuyên canh cây hồ tiêu ở miền nam Việt Nam (Bình Dương, Bà Rịa Vũng Tàu, Bình Phước và Đồng Nai). Bằng cách giải trình tự các vạch của mẫu tuyến trùng S5, kết quả cho thấy cộng đồng tuyến trùng này có 15 loài gồm nhóm tuyến trùng đất, nhóm các loại tuyến trùng khác và nhóm không phải tuyến trùng (nấm) và trong đó Meloidogyne là giống ưu thế. Mối quan hệ di truyền của các các loài tuyến trùng đất thuộc cộng đồng S5 được xác định bằng việc thiết lập cây phát sinh loài Maximum Likelihood dựa trên gene SSU. Đây là nghiên cứu đầu tiên ở Việt Nam sử dụng kỹ thuật PCR-DGGE để phân tích các cộng đồng tuyến trùng đất trồng hồ tiêu.

scholarly journals Neotyphodium impacts on soil nematode communities: rhizosphere- and litter-mediated interactions

2007 ◽  
Vol 13 ◽  
pp. 107-110
Author(s):  
M. Omacini ◽  
E.J. Chaneton ◽  
C.M. Ghersa
Keyword(s):  
Plant Traits ◽  
Lolium Multiflorum ◽  
Fungal Endophytes ◽  
Patch Dynamics ◽  
Trophic Levels ◽  
Soil Nematode ◽  
Patch Occupancy ◽  
Nematode Communities ◽  
Endophyte Infection ◽  
Soil Nematode Communities

There is a growing recognition that endophyte effects on host plant traits may be propagated through food chains. We studied Neotyphodium occultans effects on soil nematode communities mediated by current and past patch occupancy by endophyteinfected Lolium multiflorum populations. A microcosm experiment was performed to evaluate whether abundance and diversity of nematodes at different trophic levels were affected by endophyte infection through rhizosphere-mediated or littermediated effects. We found that presence of endophyte-infected plants and their aerial litter both triggered a bottom-up trophic cascade enhancing the abundance of herbivorous and predaceous nematode taxa. Endophyte infection also increased overall nematode richness, mostly through changes induced at the highest trophic level in this soil food web. Our results suggest that fungal endophytes can modify the linkages between aboveand belowground community compartments, with potential consequences on plant patch dynamics. Keywords: soil food webs, Lolium multiflorum, Neotyphodium occultans, plant-soil feedback, after-life effects, indirect interactions, trophic cascades

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