A Three-Year Plant Study of Salt-Tolerant Transgenic Maize Showed No Effects on Soil Enzyme Activity and Nematode Community

Zeng, Xing; Pei, Tongtong; Song, Yongfeng; Guo, Ping; Zhang, Huilan; Li, Xin; Li, Hao; Di, Hong; Wang, Zhenhua

doi:10.3390/life12030412

Cited by 10 publications

(2 citation statements)

References 62 publications

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“…The study conducted by Sahoo and Tuteja (2013) demonstrated that no discernible trends were observed in soil properties (pH, EC, organic C, and N) at any growth stage of two lines of maize containing the BADH gene, either in neutral or saline-alkaline soil. The study by Zeng et al (2022) demonstrated that the cultivation of BADH genetically modified maize had no effect on soil enzyme activity and nematode communities.…”

Section: Discussionmentioning

confidence: 99%

Degradation of betaine aldehyde dehydrogenase transgenic maize BZ-136 straw and its effects on soil nutrients and fungal community

Liu¹,

Zeng²,

Zhu³

et al. 2023

Front. Microbiol.

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The development of salt-alkali tolerant genetically modified crops represents an important approach to increase grain production in saline-alkali soils. However, there is a paucity of research on the impact of such genetically modified crops on soil microbial diversity. This study aims to investigate the straw degradation of betaine aldehyde dehydrogenase (BADH) transgenic maize BZ-136 and its effects on soil chemical properties, fungal community composition, community diversity and ecological function compared to non-transgenic maize Zheng58 straw. The degradation experiments of BZ-136 straw were carried out under a simulated burying condition with saline-alkali soil for 210 days. The results showed that the degradation rate of C and N of BZ-136 straw was significantly faster than that of Zheng58 in the early stage (p < 0.05). Compared to Zheng58, the straw degradation of BZ-136 increased the soil available nitrogen (AN), total phosphorus (TP), and available phosphorus (AP) in the early stage (p < 0.05). The AN content of soil with BZ-136 straw was 18.16 and 12.86% higher than that of soil with Zheng58 at day 60 and 120 (p < 0.05). The TP content of soil with BZ-136 was higher 20.9 and 20.59% than that with Zheng58 at day 30 and 90 (p < 0.05). The AP content of soil with BZ-136 was 53.44% higher than that with Zheng58 at day 60 (p < 0.05). The straw degradation of BZ-136 increased the OTU number of soil fungal community by 127 (p < 0.05) at day 60, and increased Chao1 and Shannon index at day 60 and 180 (p < 0.05). The degradation rate of C and N in BZ-136 straw was higher than that in Zheng58 at early stage, which led to the phased increase of soil AN and TP contents, and the obvious changes of relative abundances (RA) of some genera and guilds. These findings are important as they provide insight into the potential benefits of BADH transgenic crops in upgrading the soil fertility and the fungal community diversity.

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Section: Discussionmentioning

confidence: 99%

Degradation of betaine aldehyde dehydrogenase transgenic maize BZ-136 straw and its effects on soil nutrients and fungal community

Liu¹,

Zeng²,

Zhu³

et al. 2023

Front. Microbiol.

Self Cite

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“…Their findings indicated that the application of all three aromatic plants into the soil led to an increase in the abundance of free-living soil nematodes, resulting in the development of vigorous and enriched soil. Interestingly, Zeng et al [ 15 ] reported that their long-term cultivation of transgenic maize did not exert any significant effects on the soil nematode community.…”

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confidence: 99%