species n. 〔sing., pl.〕 1.种类;【生物学】(物)种。 2.【逻辑学】种。 3.【原子能】核素。 4.【法律】形式。 5.【宗教】圣餐物。 a species of folly 一种愚蠢行为。 the four species 【数学】四则,加减乘除。 The Origin of S- 《物种起源》〔Darwin 的名著〕。 the [our] species 人类。
In addition , no back mutation to obtain a maximal complexity ( i . e . - resistant and sensitive species coexistence ) or original ecology ( i . e . original - lysogen ) for the evolution occurs 而且,逆反应变异回原有菌相而成对噬菌体敏感及阻抗菌相共存之最大分歧度或回归至起始单一对噬茵体敏感菌相并未曾演化发生。
Besides , 5 % methanol enhanced the resistance to freezing stress in the sensitive species , and this effect seems to be related to maintenance of the psi activity and energy transfer between pigment protein complexes by methanol 值得注意的是5甲醇提高了非抗冻型品种synechocystissp . pcc6803的冻结耐性。其作用机制可能是在冻结胁迫下保持ps活性和色素蛋白复合体之间的能量传递。
Tolerance to and effects of the freezing stress in a desiccation - tolerant , terrestrial cyanobacterium , nostoc commune , and in a desiccation - sensitive species , synechocystis sp . pcc6803 , were studied by measuring their photosynthetic activities and fluorescence emission spectra 通过检测光合成活性和荧光发射光谱等研究冰结胁迫对蓝藻地衣( nostoccommune )和单细胞集胞藻( synechocystissp . pcc6803 )的影响。