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首页> 外文期刊>Journal of Experimental Botany >An Arabidopsis flavonoid transporter is required for anther dehiscence and pollen development.
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An Arabidopsis flavonoid transporter is required for anther dehiscence and pollen development.

机译：花药开裂和花粉发育需要拟南芥类黄酮转运蛋白。

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摘要

FLOWER FLAVONOID TRANSPORTER (FFT) encodes a multidrug and toxin efflux family transporter in Arabidopsis thaliana. FFT (AtDTX35) is highly transcribed in floral tissues, the transcript being localized to epidermal guard cells, including those of the anthers, stigma, siliques and nectaries. Mutant analysis demonstrates that the absence of FFT transcript affects flavonoid levels in the plant and that the altered flavonoid metabolism has wide-ranging consequences. Root growth, seed development and germination, and pollen development, release and viability are all affected. Spectrometry of mutant versus wild-type flowers shows altered levels of a glycosylated flavonol whereas anthocyanin seems unlikely to be the substrate as previously speculated. Thus, as well as adding FFT to the incompletely described flavonoid transport network, it is found that correct reproductive development in Arabidopsis is perturbed when this particular transporter is missing.
机译：黄酮类转运蛋白（ FFT ）编码拟南芥中的多药和毒素外排家族转运蛋白。 FFT （AtDTX35）在花卉组织中高度转录，转录本位于表皮保卫细胞，包括花药，柱头，长角果和蜜腺。突变分析表明， FFT 转录本的缺失会影响植物中的类黄酮水平，而类黄酮代谢改变会带来广泛的后果。根生长，种子发育和发芽以及花粉发育，释放和生存力都受到影响。突变型花与野生型花的光谱分析表明糖基化黄酮醇的含量发生了变化，而花青素似乎不太可能是先前推测的底物。因此，除了将FFT添加到未完整描述的类黄酮转运网络外，还发现当缺少该特定转运蛋白时，拟南芥中正确的生殖发育会受到干扰。

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