四个烤烟品种成熟叶叶绿体亚显微结构的比较
wf(2016)
Abstract
以云烟87、云烟119、77089、K326烤烟品种的成熟叶片为实验材料,运用透射电子显微镜比较观察其叶绿体亚显微结构。结果显示:四个烤烟品种叶片的上中下三个部位叶绿体积累淀粉颗粒及脂质小球的含量相差较大,且淀粉颗粒积累与脂质小球的积累相反,其中云烟87、77089淀粉颗粒和脂质小球积累的情况比较明显;各品种烤烟叶片成熟时叶绿体解体程度不一致,基粒片层的完好性也有差异,云烟87下部叶和中部叶、K326下部叶和上部叶的叶绿体中存在相对较丰富的基粒片层,云烟119三个部位的叶绿体中都没出现较丰富的基粒片层,77089的叶绿体破坏程度比较大,中部叶稍缓和。
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Key words
tobacco leaves,ultrastructure,starch granules,lipid beads,grana lamella
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