Suh Dae-Yeon, Sraan Damanpreet K, Ashton Neil W
Chemistry and Biochemistry, University of Regina, Regina, Saskatchewan, Canada.
Biology, University of Regina, Regina, Saskatchewan, Canada.
MicroPubl Biol. 2024 Jul 26;2024. doi: 10.17912/micropub.biology.001165. eCollection 2024.
The enigmatic moss, , possesses a particular type III polyketide synthase, ASCL (Anther-Specific Chalcone synthase-Like), that is an identifying marker for genuine sporopollenin in the walls of embryophyte spores and pollen grains. By contrast, a survey of all algae with sequenced genomes confirms that they do not possess ASCL and, therefore, their spore walls are not composed of sporopollenin.
这种神秘的苔藓， ，拥有一种特定的III型聚酮合酶，即ASCL（花药特异性查尔酮合酶样蛋白），它是胚植物孢子和花粉粒壁中真正孢粉素的识别标记。相比之下，对所有已测序基因组的藻类进行的一项调查证实，它们不具备ASCL，因此，它们的孢子壁不是由孢粉素组成的。
