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1.
 测定了对高效氯氟氰菊酯不同抗性水平的近等基因系高抗种群（NILs-RR）和低抗种群（NILs-RS）对13种杀虫剂的交互抗性，结果表明高抗种群对高效氯氰菊酯、氰戊菊酯、高效氟氯氰菊酯、甲氰菊酯和溴氰菊酯的交互抗性倍数在15.2～92.6之间；对氟虫腈，阿维菌素、灭多威和甲胺基阿维菌素也存在14.1～67.5倍的较高交互抗性；而对毒死蜱、溴虫腈、虫酰肼及辛硫磷的交互抗性较低，在3.0～7.6倍之间。低抗种群对氟虫腈和阿维菌素存在较明显的交互抗性，在13.3～14.3倍之间；对高效氯氰菊酯、氰戊菊酯、灭多威、溴虫腈和甲胺基阿维菌素有一定程度的交互抗性（5.8～9.9倍）；对高效氟氯氰菊酯、溴氰菊酯和甲氰菊酯的交互抗性较低（2.6～2.9倍）；对辛硫磷、毒死蜱和虫酰肼则没有明显的交互抗性（1.7～1.8倍）。对构建的甜菜夜蛾敏感种群（SS）、近等基因系高效氯氟氰菊酯抗性种群(NILs-RR)和近等基因系低抗性种群(NILs-RS)生命表分析表明，以SS种群为参比，NILs-RS、NILs-RR种群的相对适合度分别为0.870、0.893，抗高效氯氟氰菊酯不同基因型甜菜夜蛾SS，NILs-RS和NILs-RR三种群净增殖率分别为624.7, 543.6和557.8，无显著差异，表明高效氯氟氰菊酯的抗药性未引发甜菜夜蛾适合度变化。综合上述研究结果可见甜菜夜蛾对高效氯氟氰菊酯产生抗药性后，与其它菊酯类药剂、氟虫腈和阿维菌素存在较高水平交互抗性，此类药剂间不宜混用或轮用；与辛硫磷、毒死蜱和虫酰肼的交互抗性均较低，可以混用或轮用。在高抗地区也可以通过引入敏感种群进行抗性稀释的方法治理甜菜夜蛾对菊酯类杀虫剂的抗性。  相似文献   

2.
Cyantraniliprole is a novel anthranilic diamide insecticide with significant efficacy against Bemisia tabaci, an important pest insect worldwide. In this study, we conducted reversion and selection work and genetic analysis, and determined cross-resistance spectrum and synergism of cyantraniliprole resistance based on the reported population, SX population, of B. tabaci collected from Shanxi Province, China. Compared with a susceptible strain (MED-S), SX population, the field-evolved cyantraniliprole-resistant population exhibited 26.4-fold higher resistance to cyantraniliprole. In SX, a sharp decline of cyantraniliprole resistance was shown in the absence of selection. Another tested strain, SX-R, was established from SX population after successive selection with cyantraniliprole and recently developed 138.4-fold high resistance to cyantraniliprole. SX-R had no cross-resistance to abamectin, imidacloprid, thiamethoxam, sulfoxaflor, or bifenthrin. Genetic analysis illustrated that cyantraniliprole resistance in SX-R was autosomally inherited and incompletely dominant. Additionally, piperonyl butoxide (PBO) significantly inhibited cyantraniliprole resistance in the SX-R strain. In conclusion, the selection of SX with cyantraniliprole led to high resistance to cyantraniliprole which is incompletely dominant and no cross-resistance to several common types of insecticides. Enhanced oxidative metabolism is possibly involved in the resistance of SX-R, yet target-site resistance could not be excluded.  相似文献   

3.
Flupyradifurone is a promising new insecticide used for controlling Bemisia tabaci during vegetable production. In this study, we assessed the fitness costs and mode of inheritance associated with resistance to flupyradifurone in B. tabaci by comparing the susceptible strain (MED-S) to one field-evolved flupyradifurone-resistant strain (WH-R, with 199-fold resistance) and one laboratory-selected flupyradifurone-resistant strain (FLU-SEL, with 124-fold resistance). Progenies of reciprocal crosses between WH-R and MED-S (F1A, F1B, and pooled F1), and between FLU-SEL and MED-S (F1C, F1D, and pooled F1’), showed varying degrees of dominance, indicating that resistance to flupyradifurone in WH-R was autosomal and incompletely dominant, yet in FLU-SEL it was autosomal and incompletely recessive. Furthermore, the development of resistance to flupyradifurone occurred at the expense of fitness costs for the resistant populations. Compared to the MED-S strain, WH-R showed a relative fitness of 0.50 with significantly prolonged developmental durations and reduced survival rates of the nymphal and pseudopupal stages, as well as decreased fecundity and hatchability. Similarly, FLU-SEL showed a relative fitness of 0.65 and also demonstrated prolonged developmental durations and reduced survival rates of nymphs and pseudopupae, as well as decreased hatchability in comparison with the MED-S strain. However, no significant differences in fecundity were observed between MED-S and FLU-SEL. The present study provides useful knowledge for formulating pest management strategies in the field, which will allow growers to slow the development of resistance to flupyradifurone and to sustainably control B. tabaci.  相似文献   

4.
以敏感品系为对照,利用室内筛选获得的虫酰肼和阿维菌素高抗品系Teb-R和Aba-R,测定了小菜蛾对几种新型杀虫剂的交互抗性。结果发现:小菜蛾对虫酰肼产生高水平抗性后(抗性倍数185.5倍),对阿维菌素表现出中等水平交互抗性(41.0倍),对茚虫威(11.4倍)和溴虫腈(5.3倍)仅表现出低水平交互抗性,对多杀菌素(1.7倍)和氯虫苯甲酰胺(1.4倍)则没有表现出明显的交互抗性。用阿维菌素筛选Teb-R品系39代后获得阿维菌素高抗品系Aba-R(593.8倍),该品系对茚虫威(12.3倍)表现出中等水平交互抗性,对多杀菌素(7.9倍)表现出低水平交互抗性,对溴虫腈(2.7倍)和氯虫苯甲酰胺(0.9倍)的交互抗性不明显;同时该品系对虫酰肼的抗性也由阿维菌素筛选前的185.5倍下降到筛选后的28.0倍,也没有交互抗性。基于上述研究结果认为,使用虫酰肼防治小菜蛾出现抗性后,可以使用多杀菌素和氯虫苯甲酰胺进行替代防治,但不宜用阿维菌素、茚虫威和溴虫腈进行替代防治;利用阿维菌素防治小菜蛾产生抗性后,可以用溴虫腈、氯虫苯甲酰胺和虫酰肼进行替代防治,但不宜用多杀菌素和茚虫威。  相似文献   

5.
甜菜夜蛾抗茚虫威品系的生物适合度及抗性遗传方式   总被引：1，自引：0，他引：1  
王伟  高明  邓兆荣  李秀环  慕卫 《中国农业科学》2011,44(18):3741-3749
 【目的】测定甜菜夜蛾（Spodoptera exigua）抗茚虫威品系对8种常用杀虫剂的交互抗性、生物适合度及抗性遗传方式。【方法】生测方法确定交互抗性程度,组建种群生命表评价抗性品系的生物适合度,LD-P线与统计分析相结合研究抗性遗传方式。【结果】对茚虫威产生134倍抗性的甜菜夜蛾品系（RR-indox）除对甲维盐表现中等水平的交互抗性（12.59倍）外,对其它7种药剂均没有明显交互抗性。抗性品系相对敏感品系的生物适合度为0.44,表现出一定程度的生长发育和繁殖上的不利性。杂交后代（F1,R♀×S♂;F′1,S♀×R♂）的显性度分别为0.54和0.74,甜菜夜蛾对茚虫威的抗性为常染色体多基因,不完全显性遗传。【结论】茚虫威防治甜菜夜蛾应注意与无交互抗性药剂轮换使用,以延缓抗性的产生。  相似文献   

6.
小菜蛾对阿维菌素的抗性风险评估及交互抗性的室内测定   总被引：2，自引：0，他引：2  
在室内用阿维菌素对小菜蛾进行抗性选育,结果表明：小菜蛾对阿维菌素的抗性发展先慢后快,经过20代14次选育,与敏感种群相比,抗性指数为20.92倍。应用域性状分析法,小菜蛾对阿维菌素的抗性现实遗传力为0.1303,在致死率为50%～99%的选择压力下,预计小菜蛾对阿维菌素抗性增长10倍,需要2.4～15.9代。这表明小菜蛾对阿维菌素产生高水平抗性的风险很大。交互抗性测定结果表明,阿维菌素抗性小菜蛾种群对甲维盐具有明显的交互抗性,抗性指数为8.85倍;对多杀菌素、茚虫威、氟虫腈和溴虫腈类药剂无交互抗性或交互抗性不明显。  相似文献   

7.
二斑叶螨抗四螨嗪品系筛选及其解毒酶活力变化   总被引：3，自引：2，他引：1  
【目的】筛选二斑叶螨对四螨嗪的抗性,并明确其解毒酶的变化。【方法】采用室内生物测定和生化分析方法,研究二斑叶螨对四螨嗪的抗性发展趋势及其解毒酶活力变化。【结果】室内用四螨嗪筛选二斑叶螨21代（Clo-R21品系）,抗性倍数（RR）为122.26;Clo-R21品系对哒螨•四螨嗪和浏阳霉素具有较高的交互抗性,RR分别为21.80和10.66;对阿维菌素、甲氰菊酯、三氯氟氰菊酯、氯氰菊酯、三唑锡和苦皮藤生物碱具有低水平的交互抗性,RR分别为6.85、5.45、5.02、3.88、3.48、1.68;对苯丁锡、唑螨酯、噻螨酮具有负交互抗性,RR分别为0.72、0.65、0.55;增效剂磷酸三苯酯（TPP）、顺丁烯二酸二乙酯（DEM）、胡椒基丁醚（PBO）、增效磷（SV1）对抗Clo-R21品系的增效比值分别为1.39、1.70、6.78、1.64;Clo-R21品系体内羧酸酯酶（CarE）、酸性磷酸酯酶（ACP）、碱性磷酸酯酶（ALP）、谷胱甘肽-S-转移酶（GSTs）和多功能氧化酶（MFO）分别是敏感品系的2.25、2.04、1.91、1.98和26.68倍。【结论】二斑叶螨对四螨嗪的抗性主要受MFO介导,而CarE、ACP、ALP和GSTs也参与四螨嗪抗性的形成。  相似文献   

8.
报道对辛硫磷和溴氰菊酯具有不同抗性水平的家蝇对有机磷、拟除虫菊酯及其他药剂的交互抗性情况和生化机制。处于高抗（R／S为625）和极高抗（R／S为547276）水平的抗溴氰菊酯家蝇、以及处于中抗（R／S为21．89）和高抗（R／S为310．72）水平的抗辛硫磷家蝇,对DDT及拟除虫菊酯类药剂均表现出明显的交互抗性;处于高抗和极高抗的抗溴氰菊酯家蝇以及处于中抗的抗干硫磷家蝇,对灭多威、abamectin及有机磷类药剂均不表现交互抗性;但处于高抗的抗辛硫磷家蝇则对有机磷类药剂表现出中等水平的交互抗性,对灭多威和abamectin无交互抗性。离休酶系分析结果表明,不同抗性水平家蝇的交互抗性情况不同,这与家蝇体内酯酶、多功能氧化酶、谷胱甘肽-S-转移酶和乙酸胆碱酯酶的酶活或特性存在差异有关。  相似文献   

9.
The effects of retarding resistance evolution of mixing and sequencing acaricides were studied based on the resistance selection of three acaricides to Tetranychus cinnabarinus in the laboratory. Tetranychus cinnabarinus was continuously selected with fenpropathrin, abamectin and pyridaban for 28, 30 and 31generations, respectively, and resistance factor increased to 65.6, 7.2 and 1.2 time, accordingly. Results of cross-resistance determination suggested that there were no cross-resistance existed among the three acaricides.Analysis of resistance selection and estimation of realized heritability (h2 ) of resistance to three single and two mixed acaricides showed that a mixture of fenpropathrin+abamectin would slow resistance development compared with a sequence of fenpropathrin followed by abamectin while the mixture of pyridaben+abamectin and the sequence of pyridaben followed by abamectin would effectively retard resistance evolution.  相似文献   

10.
【目的】 评估MEAM1烟粉虱隐种[Bemisia tabaci (Gennadius)]对3种新烟碱类杀虫剂的交互抗性风险,预测交互抗性发展速率,为科学合理用药提供依据。【方法】 采用群体汰选法获得抗性品系,采用数量遗传学的域性状分析法估算交互抗性现实遗传力( h2) ,并预测不同选择压下交互抗性发展速率。【结果】 在50%~70%药剂选择压力下,MEAM1烟粉虱隐种连续汰选9代后,吡虫啉抗性汰选品系对噻虫嗪和啶虫脒交互抗性倍数分别上升了8.72和19.21倍,分别达到低等和中等交互抗性水平,平均交互现实遗传力h2分别为0.198 1和0.285 4;啶虫脒抗性汰选品系对吡虫啉和噻虫嗪交互抗性倍数分别上升了10.08和9.83倍,表现出中等和低等交互抗性水平,平均交互现实遗传力h2分别为0.242 3和0.128 1;噻虫嗪抗性汰选品系对吡虫啉和啶虫脒交互抗性倍数分别上升了3.12和3.11倍,均处于敏感性下降阶段,平均交互现实遗传力h2分别为0.142 1和0.068 0。【结论】 吡虫啉抗性汰选品系对噻虫嗪的交互抗性风险小于对啶虫脒的交互抗性风险;啶虫脒抗性汰选品系对噻虫嗪的交互抗性风险小于对吡虫啉的交互抗性风险;噻虫嗪抗性汰选品系对啶虫脒的交互抗性风险小于对吡虫啉的交互抗性风险。  相似文献   

11.
Four strains of the Q biotype and one of the B biotype of the whitefly Bemisia tabaci collected from China were characterised for resistance to four neonicotinoid insecticides and pymetrozine. Q biotype strains showed moderate to strong resistance to imidacloprid, thiamethoxam and acetamiprid, but little or no cross-resistance to dinotefuron. Resistance to neonicotinoids was consistently associated with resistance to pymetrozine, despite the latter having a distinct (though unresolved) mode of action. The single B biotype strain proved largely susceptible to all the insecticides investigated. Resistance in the Q biotype strains was associated with over-expression of a cytochrome P450 monooxygenase gene, CYP6CM1, whose substrate specificity presumably accounts for the observed cross-resistance profiles.  相似文献   

12.
American sloughgrass (Beckmannia syzigachne (Steud.) Fernald) is one of the most competitive and malignant weeds in rice-wheat rotation fields in China. American sloughgrass populations in the Jiangsu Province of China became less sensitive to acetohydroxyacid synthase (AHAS) inhibitors after repeated application for many years in these areas. Two suspected resistant American sloughgrass populations (R1 and R2) collected in the field were detected the resistance to inhibitors of AHAS in whole-plant dose-response assays, compared to the susceptible (S) population. These assays indicated that R1 showed low resistance to mesosulfuron-methyl (3.32-fold), imazapic (2.84-fold) and pyroxsulam (1.55-fold), moderate resistance to flazasulfuron (4.67-fold) and pyribenzoxim (7.41-fold), and high resistance to flucarbazone (11.73-fold). However, using a combination of the cytochrome P450 inhibitor, malathion, with mesosulfuron-methyl resulted in a reduction in R1 resistance relative to mesosulfuron-methyl alone. Furthermore, R2 was highly resistant to flazasulfuron (34.90-fold), imazapic (11.30-fold), flucarbazone (49.20-fold), pyribenzoxim (12.94-fold), moderately resistant to mesosulfuron-methyl (9.77-fold) and pyroxsulam (6.26-fold), and malathion had no effect on R2 resistance to mesosulfuron-methyl. The full-length of AHAS genes was sequenced and the AHAS enzymes were assayed in vitro in order to clarify the mechanism of resistance to AHAS inhibitors in R1 and R2 populations. The results demonstrated that R2 had a Pro-197-Ser mutation in the AHAS gene, and the sensitivity of R2 to the five AHAS inhibitors was decreased, which may result in R2 resistance to AHAS inhibitors. There was no mutation in the AHAS gene of R1, and there were no significant differences in enzyme sensitivity between susceptible (S) and resistant (R1) populations. An enhanced metabolism may be the main mechanism of R1 resistance to AHAS inhibitors.  相似文献   

13.
为探讨南方小花蝽对不同猎物的捕食喜好性,室内用西花蓟马、蚕豆蚜、二斑叶螨、混合饲料(同时饲喂3种猎物)分别饲喂南方小花蝽驯化两代,研究了4种饲喂处理的南方小花蝽初孵若虫、5龄若虫和雌成虫对西花蓟马、蚕豆蚜和二斑叶螨的捕食量和喜好性.结果显示不同猎物饲喂处理驯化的南方小花蝽1龄若虫对同一种猎物的捕食量和喜好性均不存在显著差异.南方小花蝽5龄若虫和雌成虫对某种猎物的捕食量因前期取食的猎物种类不同而有显著差异.南方小花蝽5龄若虫和雌成虫均表现出对西花蓟马2龄若虫的正喜好性.蚕豆蚜饲喂处理的5龄若虫和雌成虫对蚕豆蚜表现出正喜好性,除二斑叶螨饲喂处理外其余3种处理的南方小花蝽5龄若虫和雌成虫均表现出对二斑叶螨的负喜好性.以上结果表明4种饲喂驯化处理的南方小花蝽1龄若虫的喜好性不受前期取食猎物的影响,但5龄若虫和雌成虫对前期取食过的猎物的喜好性增强,存在一定的学习行为.  相似文献   

14.
小菜蛾抗药性治理对策研究   总被引：34，自引：0，他引：34  
 将“诊断剂量”技术原理与简易生物测定方法相结合，可监测小菜蛾对昆虫生长调节剂定虫隆抗性个体频率的发展动态。主要采用浸叶法测定了上海地区小菜蛾对5种常用杀虫剂的抗性水平，以及对4类新型杀虫剂的交互抗性。采用以田间抗性监测与治理有机结合为特点的小菜蛾抗药性治理对策，交替施用作用机理不同的杀虫剂，可有效地控制抗性小菜蛾种群的危害，并延缓对新型杀虫剂的抗性发展。将药剂田间推荐浓度作为抗药性监测的区分浓度，可为抗药性治理的决策和效果评价提供重要依据。  相似文献   

15.
采用玻片浸渍法,用甲氰菊酯对二斑叶螨敏感种群进行抗性选育,经过19代的汰选,获得抗性指数为88.37倍的抗甲氰菊酯二斑叶螨种群.对17种常用杀螨剂的交互抗性测定结果表明,该种群对三氯氟氰菊酯、甲基异柳磷、双甲脒和苦皮藤生物碱有明显交互抗性,抗性指数分别达12.21、11.91、39.54、10.82;对氧化乐果、苯丁锡、唑螨酯、氯氰菊酯及三唑锡交互抗性次之,抗性指数分别为6.35,7.54、6.878、9.79、6.65;而对哒螨灵、三氯杀螨醇、克螨特、阿维菌素、噻螨酮、四螨嗪、哒螨.四螨嗪及哒.水胺硫磷(抗性指数<5.00倍)等杀螨剂无明显的交互抗性.  相似文献   

16.
小菜蛾对阿维菌素的抗药性研究进展   总被引：2，自引：0，他引：2  
小菜蛾是十字花科蔬菜的重要害虫,阿维菌素是目前防治这一害虫的当家产品。笔者对小菜蛾抗阿维菌素品系的选育、抗性监测、交互抗性、抗性遗传、抗性机理等方面的研究进展进行了综述。  相似文献   

17.
云南小菜蛾对阿维菌素的抗药性监测和药剂防治试验   总被引：10，自引：0，他引：10  
抗药性监测结果表明：云南通海小菜蛾种群对阿维菌素的抗药性已增至46．1倍，昆明种群对阿维菌素的敏感性有所下降。对敌敌畏，各地种群仍有较高的敏感性，抗性不明显；对氯氰菊酯、灭多威则产生了数百倍的高度抗性。室内生测表明田间抗性小菜蛾对锐劲特、除尽和菜喜高度敏感。田间防治试验结果表明：阿维菌素对小菜蛾仍有较高的防治效果。  相似文献   

18.
The insecticide chlorantraniliprole exhibits good efficacy and plays an important role in controlling the diamondback moth, Plutella xylostella Linnaeus. However, resistance to chlorantraniliprole has been observed recently in some field populations. At present study, diamondback moths with resistance to chlorantraniliprole (resistant ratio (RR) was 82.18) for biochemical assays were selected. The assays were performed to determine potential resistance mechanisms. The results showed that the selected resistant moths (GDLZ-R) and susceptible moth could be synergized by known metabolic inhibitors such as piperonyl butoxide (PBO), triphenyl phosphate (TPP) and diethyl-maleate (DEM) at different levels (1.68–5.50-fold and 2.20–2.89-fold, respectively), and DEM showed the maximum synergism in both strains. In enzymes assays, a high level of glutathione-S-transferase (GST) was observed in the resistant moth, in contrast, moths that are susceptible to the insecticide had only 1/3 the GST activity of the resistant moths. The analysis of short-term exposure of chlorantraniliprole on biochemical response in the resistant strain also showed that GST activity was significantly elevated after exposure to a sub-lethal concentration of chlorantraniliprole (about 1/3 LC50, 12 mg L−1) 12 and 24 h, respectively. The results show that there is a strong correlation between the enzyme activity and resistance, and GST is likely the main detoxification mechanism responsible for resistance to chlorantraniliprole in P. xylostella L., cytochrome P450 monooxygenase (P450) and carboxy-lesterase (CarE) are involved in to some extent.  相似文献   

19.
采用玻片浸渍法测定了云南鲜切花主产区玫瑰和香石竹植株上朱砂叶螨[Tetranychus cinnabarinus(Boisduval)]对阿维菌素、甲氨基阿维菌素苯甲酸盐、溴虫腈、丁醚脲、炔螨特和哒螨灵的抗性。结果表明,昆明北郊和呈贡地区玫瑰上的朱砂叶螨雌成螨对阿维菌素与甲氨基阿维菌素苯甲酸盐产生了极高的抗药性,阿维菌素对2个地区的朱砂叶螨的LC50分别为40.25和19.67mg/L,相对毒力指数分别为敏感品系的2441.08和1192.86倍;甲氨基阿维菌素苯甲酸盐对其LC50分别为118.18和9.24 mg/L,相对毒力指数是敏感品系的2805.73和219.35倍。昆明北郊的朱砂叶螨对溴虫腈的相对毒力指数是敏感品系的2371.40倍,呈贡和晋宁的朱砂叶螨对溴虫腈的相对毒力指数是敏感品系的162.01和173.38倍。丁醚脲对昆明北郊、呈贡和晋宁朱砂叶螨的LC50分别为244.58、385.41和54.93 mg/L,相对毒力指数在3.01～21.10倍。昆明北郊、呈贡和晋宁的朱砂叶螨种群对炔螨特和哒螨灵的LC50分别为155.39、424.49和62.70 mg/L,其相对毒力指数是敏感品系的6.45倍、17.63倍和2.60倍。朱砂叶螨对药剂抗性水平趋势从高到低为阿维菌素、甲氨基阿维菌素苯甲酸盐>溴虫腈、丁醚脲>炔螨特、哒螨灵,抗性最高的地区为昆明北郊,晋宁相对较低。  相似文献   

20.
朱砂叶螨对阿维菌素及高温的交互耐性   总被引：1，自引：0，他引：1  
以朱砂叶螨敏感种群(SS)、抗阿维菌素种群(RA)和耐高温种群(RH)为材料,应用生物测定方法以及荧光实时定量PCR技术,研究朱砂叶螨抗药性和耐高温间存在的交互耐性及机制.结果显示:46℃高温下RH和RA种群的半致死时间(LT50)显著长于SS种群,其顺序依次是:RHRASS,阿维菌素对朱砂叶螨的半致死浓度(LC50)各种群间的顺序依次是:RARHSS,其中,RH和RA种群显著高于SS种群.这表明长期的高温胁迫能诱导其对阿维菌素药剂的抗性,同样对阿维菌素的抗药性也能诱导其对高温的耐性.SS、RA和RH经阿维菌素处理后体内O2?(超氧自由基)含量分别是对照的2.08、1.85和2.00倍,SOD(超氧化物歧化酶)活性分别是对照的3.81、4.84和4.26倍,CAT(过氧化氢酶)和POD(过氧化物酶)活性也都高于对照;经高温(40℃)和低温(4℃)处理后,O2?及SOD、CAT和POD活性也表现出相同的趋势.说明朱砂叶螨虫体内的O2?、SOD、CAT和POD与阿维菌素药物和热(冷)刺激有关,RA和RH在长期阿维菌素或高温胁迫作用下对保护酶活性的诱导能力加强.朱砂叶螨Tc HSP90 mRNA在正常情况下的表达是RA和RH高于SS,分别是SS的1.64倍和1.29倍,经阿维菌素、高温(40℃)和低温(4℃)处理后,RA和RH的表达量显著高于SS,表明朱砂叶螨HSP90在抗药性和耐热性方面发挥了作用.  相似文献   

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