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Li XF, Qie XT, Mo BT, Wang CF, Xing ZH, Zhao JY, Wang CZ, Hao C, Ma L, Yan XZ. Functional types of long trichoid sensilla responding to sex pheromone components in Plutella xylostella. Insect Sci 2024. [PMID: 38616579 DOI: 10.1111/1744-7917.13367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/17/2024] [Accepted: 03/11/2024] [Indexed: 04/16/2024]
Abstract
Sex pheromones, which consist of multiple components in specific ratios promote intraspecific sexual communications of insects. Plutella xylostella (L.) is a worldwide pest of cruciferous vegetables, the mating behavior of which is highly dependent on its olfactory system. Long trichoid sensilla on male antennae are the main olfactory sensilla that can sense sex pheromones. However, the underlying mechanisms remain unclear. In this study, 3 sex pheromone components from sex pheromone gland secretions of P. xylostella female adults were identified as Z11-16:Ald, Z11-16:Ac, and Z11-16:OH in a ratio of 9.4 : 100 : 17 using gas chromatography - mass spectrometry and gas chromatography with electroantennographic detection. Electrophysiological responses of 581 and 385 long trichoid sensilla of male adults and female adults, respectively, to the 3 components were measured by single sensillum recording. Hierarchical clustering analysis showed that the long trichoid sensilla were of 6 different types. In the male antennae, 52.32%, 5.51%, and 1.89% of the sensilla responded to Z11-16:Ald, Z11-16:Ac, and Z11-16:OH, which are named as A type, B type, and C type sensilla, respectively; 2.93% named as D type sensilla responded to both Z11-16:Ald and Z11-16:Ac, and 0.34% named as E type sensilla were sensitive to both Z11-16:Ald and Z11-16:OH. In the female antennae, only 7.53% of long trichoid sensilla responded to the sex pheromone components, A type sensilla were 3.64%, B type and C type sensilla were both 0.52%, D type sensilla were 1.30%, and 1.56% of the sensilla responded to all 3 components, which were named as F type sensilla. The responding long trichoid sensilla were located from the base to the terminal of the male antennae and from the base to the middle of the female antennae. The pheromone mixture (Z11-16:Ald : Z11-16:Ac : Z11-16:OH = 9.4 : 100 : 17) had a weakly repellent effect on female adults of P. xylostella. Our results lay the foundation for further studies on sex pheromone communications in P. xylostella.
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Affiliation(s)
- Xiao-Fei Li
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Xing-Tao Qie
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Bao-Tong Mo
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Cai-Feng Wang
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Zeng-Hua Xing
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Jin-Yu Zhao
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Chen-Zhu Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, China
| | - Chi Hao
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Li Ma
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
| | - Xi-Zhong Yan
- College of Plant Protection, Shanxi Agricultural University, Taigu, Shanxi Province, China
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Cheang TY, Xing ZH, Li ZL, Zhou HY, Wei JH, Zhou X, Xu AW, Lin Y, Wang SM. Delivery of AIB1 siRNA by Ca 2+/PEI/heparin composite nanoparticles effectively inhibits the growth of human breast cancer. J Mater Chem B 2015; 3:7623-7630. [PMID: 32262646 DOI: 10.1039/c5tb01490e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, a novel carrier fabricated by the interaction of negatively charged heparin and positively charged PEI and Ca2+ was investigated to deliver AIB1 siRNA into breast cancer cells both in vitro and in vivo. Ca2+/PEI/heparin nanoparticles were prepared by simply mixing heparin, PEI and CaCl2 aqueous solution. Heparin in the Ca2+/PEI/heparin nanoparticles (40.9% heparin, w/w) decreased the cytotoxicity of PEI. According to the MTT assay, Ca2+/PEI/heparin NPs are superior to commercial Lipofectamine 2000 considering the safety. The Ca2+/PEI/heparin NPs are able to deliver siAIB1 into breast cancer cells as effectively as Lipofectamine 2000 both in vitro and in vivo. The in vivo experiment also indicated that the NF-κB/BCL-2 signal pathway might be the downstream signal pathway of AIB1 in regulating breast cancer proliferation and progression.
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Affiliation(s)
- T Y Cheang
- Department of Breast Surgery, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
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Xing ZH, Li W, Pi DR. [Effect of qigong on blood pressure and life quality of essential hypertension patients]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1993; 13:413-4, 388-9. [PMID: 8251724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
56 essential hypertension patients (stages I, II) received Qigong from Mar, 1989 to Sept, 1991, pre- and post-treatment comparison of BP and life quality (LQ) indices revealed that (1) It could efficiently lower BP(P < 0.001). Stroke, congestive heart failure and acute myocardial infarction did not occur. No side effects were observed as well. (2) It could markedly improve LQ of hypertensive patients. LQ examinations showed that significant difference (P < 0.001) existed among LQ indices except dysfunction, which might be due to the selection of non-dysfunctional patients. LQ should be widely used in clinical practice and medical research.
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Affiliation(s)
- Z H Xing
- Inst. of Combined TCM-WM, Hunan Medical University, Changsha
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