Elevated CO not increased temperature has specific effects on soil nematode community either with planting of transgenic rice or non- rice.

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ID: 102540
2020
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Abstract
Transgenic rice has not been approved for commercial cultivation because of the fierce public debate on food safety, biosafety regulation and ecological risk. Meanwhile, the concentration of CO and temperature in the atmosphere, as important environmental factors affecting the persistence of exogenous protein, have increased. Elevated CO, increased temperature, the planting of transgenic rice and their interactions may further influence the structure and complexity of soil food web. However, the effects of transgenic rice planting on soil organism remain largely unexplored before its commercial production especially under global climate change.Here, we assessed the influences of transgenic rice (cv. HH with fused / in contrast to its parental line of non- rice cv. MH63) on soil nematode communities under the conditions of elevated CO concentration and increased temperature for 2 years of 2016 and 2017 in open-top chambers located in Ningjin County, Shandong Province of China.Elevated CO concentration remarkably increased the abundance of fungivores and significantly decreased their nematode channel ratio (NCR) and enrichment index () irrespective of rice variety (transgenic rice or non- rice) or temperature (normal temperature or increased temperature). Additionally, rice variety and temperature did not significantly change soil nematode composition, abundance and ecological indices (including total maturity index (∑), Shannon diversity ('), structure index (), NCR and ). However, apparent seasonal changes were observed in theses aforementioned variables.These results suggested that atmospheric CO concentration but not temperature or rice variety has great impacts on soil nematode community, especially fungivores.
Reference Key
song2020elevatedpeerj Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Song, Yingying;Liu, Jiawen;Chen, Fajun;
Journal PeerJ
Year 2020
DOI
10.7717/peerj.8547
URL
https://peerj.com/articles/8547.pdf
Keywords
global climate change ecological index soil fauna transgenic bt crop trophic group

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