繁殖体

The internal cause includes polarity variation , inbred variation , instability of hybridization and gene mutation . The external cause includes unfitting culture conditions , strain ag ing , unsuitable preservation and infection virus of asexuality propagation .

内因主要包括极性发生变异，自交产生的变异，杂交种性不稳定和基因突变；外因主要包括培养条件不适宜，菌种老化，菌种保藏不当和菌株无性繁殖体感染病毒。

Monophyletic preparation of chlorine dioxide disinfection powder has good efficacy in killing vegetative form and spore of bacteria and is slightly irriating to rabbit skin.

结论，一元制剂二氧化氯消毒粉剂对细菌繁殖体和细菌芽孢具有良好的杀菌效果，动物毒性试验属无毒类物质、对家兔皮肤有轻度刺激性。

Ben Pinweed fast and efficient disinfectant, the multiplication of bacteria-killing a significant role.

本品为快速高效消毒剂，对细菌繁殖体有显著杀灭作用。

The pathogen is transmitted persistently by the Asian citrus psyllid, Diaphorina citri in Asia. In order to figure out the whole process of Las inside psyllids, and its ill effect on the psyllids.

此病可藉由无性繁殖体的嫁接方式与媒介昆虫来传播，在亚洲地区是由亚洲柑橘木虱 Diaphorina citri Kuwayama 以持续性方式媒介传播。

The factors to effect germination rate and seedling conversion rate of C. appendiculata synthetic seeds, such as synthetic coating materials, synthetic endosperm components, storing conditions and germination materials, etc. were studied.

以杜鹃兰为实验材料，通过液体悬浮培养建立原球茎悬浮系，并以原球茎为人工种子的繁殖体，研究了人工种皮基质、人工胚乳组分、贮藏条件、萌发基质等对人工种子萌发率和成苗率的影响。

An asexual budlike propagule as in liverworts,capable of develop in g in to a new in dividual;a bud.

子芽，胞芽一种无性别的蓓蕾状繁殖体，能发展成一新个体，如地钱；胞芽

The changes of Cynodon dactylon propagules under flooding were studied in morphology and biomass.

研究了水淹条件下狗牙根繁殖体的形态特征和生物量的变化及其水淹后的恢复状况。

It suggested that Cynodon dactylon had strong toleration to flooding by prolonging stem, changing leaf shape and reducing biomass.

实验表明狗牙根繁殖体通过延长茎长、改变叶形和减少生物量等方式对水淹显示出较强的耐受能力。

In this paper, preservation characteristics of the viviparous propagule of Kandelia candel and Aegiceras corniculatum, change of nutrient content and caloric values of several mangroves species during winter, cold resistance and salt resistance and the effects of supplemental calcium on the seedling of three mangrove species were studied, the main results showed as follows

本文进行了红树植物对低温和盐度的某些适应生理生态学研究，主要讨论胎生繁殖体的贮藏特性、不同盐度和低温下生理生态指标的变化和补充钙的效应，以及这些处理下，植物体中6种元素和热量的变动特性等。

A secondary problem is the need for disinfectant/sterilant agents that combine rapid microbicidal activity against common vegetative bacteria, atypical mycobacteria, fungi, nonenveloped hydrophilic viruses, parasitic cysts, and even bacterial endospores, with minimal toxicity for personnel exposed to

第二个问题是对工作人员暴露毒性最小的消毒/灭菌因子的需要，而且具有对一般繁殖体细菌、非典型分枝杆菌、真菌、无包膜亲水性病毒、寄生虫包囊、甚至是细菌芽孢的联合快速杀菌活性。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。