Department;
of;
Biological;
Sciences;
and;
Biotechnologies,;
Tsinghua;
University,;
Beijing;
100084,;
China;
Department;
of;
Biotechnology,;
Beijing;
University;
of;
Agriculture,;
Beijing;
102206,;
China;
葡聚糖酶; 纤维素酶; 百合属植物; 花粉萌发; 花粉管生长;