This paper summarizes the recent progress in the study on chemical ecology of tritrophic interactions among host-plants, bark beetles and natural enemies.
综述了寄主植物、小蠹、天敌三重营养关系的化学生态学研究。
The bacterium can also secrete chemicals that inhibit fungal growth, as well as hormones that stimulate the growth of its host plants.
这种细菌也能够分泌抑制真菌生长的化学物质，同时，它还能产生促进宿主植物生长的激素。
And for good reason: Plants offer a host of health benefits.
因为有好的理由：植物提供有关健康的许多好处。
Wild sarsaparilla, wild oats, Solomon's seal and a host of understory plants die off; grass-like species such as Pennsylvania sedge take over.
野生撒尔沙、野生燕麦、玉竹和大量的林下叶层植物相继死光；宾夕法尼亚莎草之类的草类物种接管了领地。
The chief source of uncertainty, though, is on the supply side-in particular, the troubled outlook for a host of planned new plants in Asia.
然而，不确定的主要来源在供应这边，特别的，亚洲大量计划的新工厂的困难前景。
Often cited examples of sympatric speciation are found in insects which become dependent on different host plants in the same area.
经常提到的同域物种形成实例，是在同一地区的、依赖于不同寄主植物的昆虫中发现的。
Soil available N had a significant correlation with vesicular and total colonization of AMF, its colonization rate may be probably influenced by host plants and AMF.
AM真菌泡囊定殖率和总定殖率与土壤速效N有显著负相关，其定殖强度可能主要取决于宿主植物和AM真菌的相互选择性。
The host plants of this insect include 389 species (varieties) in 109 families, and are composed of ferns plants, gymnospermae, dicotyledons and monocot crops.
该虫寄主涉及到蕨类植物、裸子植物、双子叶植物、单子叶植物，共计109科389种(包括变种)。
The host plants were ornamental plants, perennial/biennial root garden plants, woody flower plants, cover plants and pulpy plants, and so on.
为害的寄主植物有观赏树木、宿根园林植物、木本花卉植物、地被植物及多浆植物等。
Experimental studies of tissue culture of winter host plants for the horned aphid are reported with details.
本文报道了倍蚜虫冬寄主藓类植物的组织培养研究。
寄主植物种类。
Species of Meliolales in China are distributed mainly in tropical and subtropical areas, and 76.8% of the host plants are of tropical elements.
中国小煤炱目主要分布在热带亚热带地区，76.8％的寄主植物属属于热带成分。
Insects that are searching for host plants may be activated by olfactory stimuli, and as a result will show directed movements toward the odor source.
正在寻找寄生植物的昆虫，可以被嗅觉刺激所激活，从而直接飞向气味来源。
Compared with rhizobacteria, PGPEs have a more stable living environment and show more intimate relations with host plants, which play a greater value in practical application.
较之根际促生菌，内生菌因生存环境稳定且与植物联系更加紧密，在实际应用中具有更大价值。
The injury symptom of leaves caused by larvae varied with host plants, and the pupation site was different depending on the host plants.
幼虫在不同寄主植物上取食危害的症状不同，其化蛹部位也不同。
The growth and esterase activity of beet armyworms and their sensitivity to insecticides were apparently influenced by their host plants.
寄主植物对甜菜夜蛾的生长发育、羧酸酯酶活性及杀虫剂的敏感性有显著影响。
Planting host plants significantly influenced the bacterium capacity of soil on black and lessive soils, but less influence on sandy and meadow soils.
寄主植物存在与否对黑土和白浆土的载菌量有明显的影响，而对风沙土和草甸土影响不大。
The results showed that in Guangzhou and Shenzhen Vegetable Areas, its winter host plants are mainly solanums, in which eggplant is the main host, and also includes Solatium photeinocarpum L.
结果表明：在广州、深圳菜区，节瓜蓟马田间冬季寄主是以冬茄为主，包括龙葵在内的茄科植物；
Aphids select host plants mainly by winged aphids.
蚜虫对寄主的选择主要为有翅蚜。
The discovery of phototoxins in plants provides new thinking in understanding the relationship between insects and their host plants.
植物光活化毒素的发现给昆虫与植物关系的研究以崭新的启迪。
Interactions between vector insects, plant viruses and host plants are complex and diverse.
媒介昆虫—病毒—植物互作关系复杂多样。
Fire blight can survive in the majority part in China and might blast under suitable host plants and environmental conditions.
梨火疫病在中国的大部分地区适生，在有适宜寄主分布的地区，就可能严重发生。
Aphids often exhibit diverse phenotypes, corresponding to the change of environmental factors, such as host plants, temperature, light and natural enemies.
本文综述了外部环境因素(如寄主植物、温度、光照、天敌等)的变异对蚜虫表型的影响。
The monthly mean temperature, monthly mean maximum temperature, monthly mean minimum temperature, monthly raining days and host plants were the major climatic factors influencing populations.
月平均气温、月平均最高气温、月平均最低气温、降雨天数及寄主植物是桔小实蝇种群数量迅速增长的重要影响因素。
As a mutual symbiosis formed between plants and soil mycorrhiza fungi, mycorrhiza plays a key role in protecting host plants against environmental stress.
菌根是植物根系与土壤真菌形成的互惠共生体，对提高植物抗逆能力十分重要。
This paper is to review:1)the effects of pathogenic fungi on individual host plants;
本文着重论述：1）病原菌对寄主植物个体的影响；
This paper is to review:1)the effects of pathogenic fungi on individual host plants;
本文着重论述：1）病原菌对寄主植物个体的影响；
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