Abstract
The present study investigated the impact of transgenic Bacillus thuringiensis (Bt) cotton on several aspects of arbuscular mycorrhizal (AM) fungus Funneliformis mosseae. The results showed that Bt cotton significantly inhibited spore germination and pre-symbiotic hyphal growth. The appressorium density, arbuscule frequency and colonization intensity in Bt roots were also decreased. The statistical analysis demonstrated that the transformation event resulted in the inhibition of hyphal development and colonization. The reduced interaction between AM fungi and plants could affect nutrient uptake and transportation in plant-fungus symbiosis. The mechanism might involve the direct toxicity of Bt toxins or the interference of signal perception between AM fungus and Bt cotton.
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Claims 6
Claim · model-written summary
Bt cotton significantly inhibited fungus spore germination.
Not reportedInteractorInteractor roleComparator
Verbatim
e0“Bt cotton significantly inhibited spore germination and pre-symbiotic hyphal growth.”
Claim · model-written summary
Bt cotton significantly inhibited presymbiotic hyphal growth.
Not reportedComparator
Verbatim
e0“Bt cotton significantly inhibited spore germination and pre-symbiotic hyphal growth.”
Claim · model-written summary
Appressorium density and arbuscule frequency in Bt roots decreased.
Verbatim
e0“The appressorium density, arbuscule frequency and colonization intensity in Bt roots were also decreased.”
Claim · model-written summary
Colonization intensity in Bt roots decreased.
Verbatim
e0“colonization intensity in Bt roots were also decreased.”
Claim · model-written summary
The transformation event inhibited hyphal development and colonization.
Not reportedTaxonComparator
Verbatim
e0“the transformation event resulted in the inhibition of hyphal development and colonization.”
Claim · model-written summary
The authors suggested that Bt toxin toxicity or signal interference might explain reduced AM fungus interaction.
Verbatim
e0“The mechanism might involve the direct toxicity of Bt toxins or the interference of signal perception between AM fungus and Bt cotton.”
The same questions in other papers
transgenic · disease · Gossypium hirsutum (cotton)Positive and negative results
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See all 8 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.