毒素

The phytotoxin of L. yunnanense belongs to protein with no heat stability.

云南半帚孢所产生的毒素为蛋白类物质，具有热不稳定性和较强的致病活性。

A specific polyclonal antibody against the phytotoxin was prepared by injecting the New Zealand rabbits with the purified PLPC.

将PLPC(15μg·ml 1)用不同浓度的抗体(1～20μg·ml 1IgG)吸附后处理泗棉3号的切根苗，毒素所引起的症状都有不同程度的减轻。

Here we describe a gene in the plant pathogen Streptomyces turgidiscabies that encodes a NOS homologue, and we reveal its role in nitrating a dipeptide phytotoxin required for plant pathogenicity.

作者描述了植物致病菌Streptomyces turgidiscabies中一种编码NOS同源物的基因并揭示了其在植物致病性中所需的对植物毒素二肽的硝化作用。

Cotton ; phytotoxin ; competitive ELISA ; the binding sites ; plasma membrane

棉花；黄萎病菌毒素；竞争ELISA ；结合位点；质膜

The phytotoxin can restrain the activities of peroxidase , polyphenol oxidase and phenylalanine ammonia lyase that existed in the tree, and so reduce the resistance of the host tree and benefit the fungus to intrude into the tree successfully.

该毒素能抑制寄主组织中过氧化物酶、多酚氧化酶和苯丙氨酸解氨酶的活性，降低寄主树木的抗御能力，从而有利于菌突破寄主的生理防御屏障而成功地侵染生长。

Ten sodium compounds in 5 different concentrations were used to test their influence on phytotoxin produced by Alternaria alternata (GL-6) on tobacco which were treated by the seed-root method.

为确定不同钠盐对烟草赤星病菌AT毒素毒性的影响，作者采用摩擦接种处理、浇根处理、种子根处理3种生物测定方法，确定了以烟草种子根处理法作为烟草赤星病菌的毒性测定方法。

The phytotoxin can pathogenesis not only to Yunnan pine, but also to Shimao pine, P. kesiya var. langbianensis and Huasan pine, P. armandi.

该毒素不仅对寄主云南松产生致病作用，而且对思茅松(P.kesiya var.langbianensis)和华山松同样具有致病作用。

This protein had strong oral toxicity to pieris and LD50 was 2.7 mg.

此毒素对菜青虫初孵幼虫有较强的口服毒性，LD50为2.7mg/头。

In this study, the cDNA fragments encoding α subunit of nicotinic acetylcholine receptor was cloned from the diamond back moth, Plutella xylostella with RT-PCR techniques. The amplified fragments are 425 nucleotides in length, from which 141 amino acids were deduced.

测序结果显示，扩增的目的基因片段包含了nAChRα亚基的三种亚型，分别命名为Pxal、Pxa2、Pxa3，都具有典型的α亚基的结构：两个相邻的半胱氨酸；形成胞外环的15个氨基酸；与烟碱和α银环蛇毒素结合有关的氨基酸残基。

Therefore, the synthesis of podophyllotoxin has an important value.

因此，对鬼臼毒素的合成研究具有重要的应用价值。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。