| 143 | 0 | 2 |
| 下载次数 | 被引频次 | 阅读次数 |
本研究采集死亡野生马鹿的肝脏、肺脏病变组织及血液样本进行细菌分离纯化培养和病理学诊断,采用细菌形态学观察、革兰氏染色、PCR方法对分离菌株进行鉴定,通过血清型鉴定、药敏试验、PCR扩增耐药基因和毒力基因等方法研究分离菌株的生物学特性。结果显示,本试验从死亡野生马鹿肺脏病变组织样本中分离鉴定出1株肺炎克雷伯菌,荚膜血清型为K1型。药敏试验结果显示,分离菌株对红霉素、克林霉素、头孢拉定、氨苄西林、青霉素和复方新诺明表现为耐药。检测到头孢菌素类SHV,喹诺酮类oqxB、gyrA、parC,氨基糖苷类aac(3)-Ⅱa及外排泵AcrAB共4类6种耐药基因。携带脂多糖wabG、uge,铁载体entB、aero、ybtA、iutA、icuB,荚膜rmpA2共3类8种毒力基因。研究结果为野生动物源肺炎克雷伯菌的相关研究及防控提供了参考依据。
Abstract:In this study, tissue samples of liver and lung lesions, as well as blood samples, were collected from deceased wild Cervus elaphus for bacterial isolation, purification, culture, and pathological diagnosis. The isolated strains were identified through bacterial morphological observation, Gram staining, and PCR methods. The biological characteristics of the isolated strains were investigated via capsular serotyping, antimicrobial susceptibility testing, and PCR amplification of resistance and virulence genes. The results demonstrated that one strain of Klebsiella pneumoniae was isolated and identified from the lung lesion tissue samples of the deceased wild Cervus elaphus, with the capsular serotype identified as K1. Antimicrobial susceptibility testing revealed that the isolated strain exhibited resistance to erythromycin, clindamycin, cephradine, ampicillin, penicillin, and compound sulfamethoxazole. A total of six resistance genes belonging to four categories were detected, including the cephalosporin resistance gene SHV, quinolone resistance genes oqxB, gyrA, and parC, aminoglycoside resistance gene aac(3)-IIa, and the efflux pump gene AcrAB. Additionally, eight virulence genes belonging to three categories were identified, comprising lipopolysaccharide-related genes wabG and uge, siderophore-related genes entB, aero, ybtA, iutA, and icuB, and the capsular gene rmpA2. These findings provide a reference basis for research on and prevention and control of Klebsiella pneumoniae derived from wildlife.
[1] 塔依尔江·麦麦提.塔里木马鹿干旱环境适应相关基因的筛选和克隆及生物信息学分析[D].新疆大学,2021.
[2] 郭芳秋.新疆南疆塔里木马鹿规模养殖的经济效益研究[D].塔里木大学,2025.
[3] 龙宝琴,王辉翔,余林金,等.2株鹌鹑源肺炎克雷伯菌的分离鉴定及生物学特性分析[J].中国畜牧兽医,2025,52(05):2364-2378.
[4] Shiri N,Kira K,Alessandra C.Klebsiella pneumoniae:a major worldwide source and shuttle for antibiotic resistance.[J].FEMS microbiology reviews,2017,41(3):252-275.
[5] 蒋佳能,王娟,杨增岐.朱鹮源大肠埃希氏菌、肺炎克雷伯氏菌和产气荚膜梭菌的分离鉴定及药敏检测[J].动物医学进展,2023,44(04):72-78.
[6] 唐丹萍,滕翎,李常挺,等.一例黑山羊肺炎克雷伯氏菌感染的诊断报告[J].广西畜牧兽医,2024,40(03):116-117.
[7] 严钰璋,茹梦珂,贺泂杰,等.甘宁地区蛋鸡源肺炎克雷伯菌的抗菌药物敏感性及耐药基因分析[J].中国兽医科学,2024,54(08):1111-1118.
[8] 郭良帅.和田地区羊源肺炎克雷伯菌的分离及生物学特征鉴定[J].中南农业科技,2023,44(06):74-80.
[9] 孙绍美,张怡娟,李震宇,等.昆明市某鸡场一株鸡源肺炎克雷伯菌的分离鉴定[J].云南畜牧兽医,2024,(04):4-6.
[10] 廖慧群,赵美,曾国辉,等.林麝源肺炎克雷伯菌耐药性及毒力基因分析[J].中国畜牧兽医,2025,52(01):411-421.
[11] Turton JF,Englender H,Gabriel SN,Turton SE,Kaufmann ME,Pitt TL.Genetically similar isolates of Klebsiella pneumoniae serotype K1 causing liver abscesses in three continents.J Med Microbiol.2007 May;56(Pt5):593-597.
[12] 贡嘎,格桑卓玛,左伟,等.西藏部分地区牦牛源肺炎克雷伯菌的分离、鉴定、毒力及耐药基因分析[J].中国兽医学报,2021,41(01):102-109.
[13] 高兴,赵柯杰,于勇,等.奶牛乳房炎源肺炎克雷伯菌耐药特性分析[J].南京农业大学学报,2023,46(02):306-315.
[14] 马纾薏.新疆南疆马鹿肺炎克雷伯菌分子流行病学调查及耐药特性研究[D].塔里木大学,2022.
[15] 侯铭源,林倩颖,梁艳艳,等.牛呼吸道疾病克雷伯菌毒力及耐药性分析[J].中国兽医学报,2022,42(09):1810-1816.
[16] 赵恩浩,石红梅,格桑卓玛,等.甘肃牦牛源肺炎克雷伯菌的遗传进化、毒力基因及耐药性分析[J].畜牧兽医学报,2025,56(06):2893-2905.
[17] 李学英.大熊猫源肺炎克雷伯菌的分离鉴定及其部分生物学特性研究[D].西南民族大学,2022.
[18] 王佳宁,张自强,孔德婧,等.家兔肺炎克雷伯菌的分离鉴定[J].畜牧兽医学报,2023,54(12):5198-5206.
[19] 刘宇洋,刘玉莹,董文龙,等.多重耐药猪源类肺炎克雷伯菌的全基因组测序分析[J].现代畜牧科技,2025,(06):7-9.
[20] 兰雪琴,黄颖,白怡馨,等.鸽源肺炎克雷伯菌的分离鉴定及其毒力和耐药性分析[J].中国预防兽医学报,2024,46(08):812-818.
[21] 陈强,程悦宁,王咸伟,等.貂源肺炎克雷伯菌毒力基因及耐药特征分析[J/OL].特产研究,1-7.
[22] 王奇林,曹润来,王威阳,等.狐狸流产胎儿体内肺炎克雷伯菌的分离鉴定及耐药性分析[J].畜牧兽医学报,2024,55(08):3640-3648.
[23] 潘苑霞,王文基,陈庆涛,等.1株大黄鱼源肺炎克雷伯菌的分离鉴定与致病性分析[J].水产科学,2023,42(02):268-278.
[24] 黄康,萨家祺,陈绚姣,等.象源致病性肺炎克雷伯氏菌分离鉴定及药敏试验[J].广东畜牧兽医科技,2024,49(05):70-74+96.
[25] 王国蒨,陈绚姣,曾繁文,等.川金丝猴源肺炎克雷伯菌的分离鉴定及耐药性[J].福建畜牧兽医,2024,46(04):22-26.
[26] 颜琪,张萍淑,李雯,等.肺炎克雷伯菌耐药机制、耐药基因及毒力因子的研究进展[J].实用心脑肺血管病杂志,2025,33(05):133-140.
[27] Poothakuzhiyil R,Mariappan S,Uma S.Occurrence and characterization of hyperviscous K1 and K2 serotype in Klebsiella pneumoniae.[J].Journal of laboratory physicians,2018,10(3):283-288.
[28] Busaidi A B,Muzahmi A M,Shabibi A Z,et al.Hypervirulent Capsular Serotypes K1 and K2 Klebsiella pneumoniae Strains Demonstrate Resistance to Serum Bactericidal Activity and Galleria mellonella Lethality.[J].International journal of molecular sciences,2024,25(3):1944-.
[29] 施瑜,王震,杨奇,等.高毒力肺炎克雷伯菌的毒力基因研究[J].中国现代药物应用,2025,19(13):177-180.
[30] 曾繁文,萨家祺,左珂菁,等.环尾狐猴源肺炎克雷伯氏菌分离鉴定及耐药性分析[J].广东畜牧兽医科技,2025,50(01):52-58.
[31] 张晨晖,兰佩聪,田芮,等.新疆不同动物粪源肺炎克雷伯菌的耐药性及毒力基因分析[J].中国农业大学学报,2025,30(04):166-178.
[32] Rezaei S,Tajbakhsh S,Naeimi B,et al.Investigation of gyrA and parC mutations and the prevalence of plasmid-mediated quinolone resistance genes in Klebsiella pneumoniae clinical isolates[J].BMC Microbiology,2024,24(1):265-265.
[33] Ochońska D,W?och B M .Klebsiella Pneumoniae-Taxonomy,Occurrence,Identification,Virulence Factors and Pathogenicity[J].Advancements of Microbiology,2024,63(3):157-175.
[34] Andrew C,E R N,M L F,et al.Prevalence of hypervirulent Klebsiella pneumoniae-associated genes rmpA and magA in two tertiary hospitals in Houston, TX, USA.[J].Journal of medical microbiology,2016,65(9):1047-1048.
[35] Dakang H,Wenjie C,Jinzuan W,et al.Coexistence of c-rmpA with p-rmpA and p-rmpA2 rather than excessive siderophores confers higher virulence in K1 Klebsiella pneumoniae.[J].Pathology,2023,55(7):1004-1012.
[36] 秦玉明,彭小薇,冯宇,等.鹿布鲁氏菌病诊断与防控研究进展[J].中国兽药杂志,2021,55(09):65-70.
基本信息:
中图分类号:S852.61
引用信息:
[1]苏顺,张怡淼,刘晨宇,等.新疆南疆地区1株野生马鹿源肺炎克雷伯菌的耐药及毒力表型分析[J].经济动物学报().
基金信息:
国家自然科学基金地区基金项目(31660725);国家自然科学基金地区基金项目(31860713)
2026-02-27
2026-02-27
2026-02-27