Comparison of the physiological characteristics of transgenic insect-resistant cotton and conventional lines.
The introduction of transgenic insect-resistant cotton into agricultural ecosystems has raised concerns regarding its ecological effects. Many studies have been conducted to compare the differences in characteristics between transgenic cotton and conventional counterparts. However, few studies have focused on the different responses of transgenic cotton to stress conditions, especially to the challenges of pathogens. The aim of this work is to determine the extent of variation in physiological characteristics between transgenic insect-resistant cotton and the conventional counterpart infected by cotton soil-borne pathogens. The results showed that the difference in genetic backgrounds is the main factor responsible for the effects on biochemical characteristics of transgenic cotton when incubating with cotton Fusarium oxysporum. However, genetic modification had a significantly greater influence on the stomatal structure of transgenic cotton than the effects of cotton genotypes. Our results highlight that the differences in genetic background and/or genetic modifications may introduce variations in physiological characteristics and should be considered to explore the potential unexpected ecological effects of transgenic cotton.
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
Xiaogang
X
Li
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
Changfeng
C
Ding
Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
Xingxiang
X
Wang
Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection of China, Nanjing 210042, China.
Biao
B
Liu
D000704:Analysis of Variance; D000818:Animals; D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins / Q000235:genetics; D002241:Carbohydrates / Q000032:analysis; D060467:Disease Resistance / Q000235:genetics; D004731:Endotoxins / Q000235:genetics; D005670:Fusarium / Q000502:physiology; D003368:Gossypium / Q000235:genetics* / Q000469:parasitology / Q000502:physiology*; D006460:Hemolysin Proteins / Q000235:genetics; D054884:Host-Pathogen Interactions; D007313:Insecta / Q000502:physiology; D016014:Linear Models; D008855:Microscopy, Electron, Scanning; D009195:Peroxidase / Q000378:metabolism; D010935:Plant Diseases / Q000235:genetics / Q000382:microbiology / Q000469:parasitology; D018515:Plant Leaves / Q000235:genetics / Q000382:microbiology / Q000502:physiology; D010940:Plant Proteins / Q000378:metabolism; D054046:Plant Stomata / Q000235:genetics / Q000382:microbiology / Q000502:physiology; D030821:Plants, Genetically Modified / Q000235:genetics* / Q000469:parasitology / Q000502:physiology*; D013482:Superoxide Dismutase / Q000378:metabolism
D000083722:Bacillus thuringiensis Toxins; D001426:Bacterial Proteins; D002241:Carbohydrates; D004731:Endotoxins; D006460:Hemolysin Proteins; D010940:Plant Proteins; C030956:insecticidal crystal protein, Bacillus Thuringiensis; D009195:Peroxidase; D013482:Superoxide Dismutase