CN106987540A - 一株荚膜红细菌及其应用 - Google Patents
一株荚膜红细菌及其应用 Download PDFInfo
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- CN106987540A CN106987540A CN201710273450.1A CN201710273450A CN106987540A CN 106987540 A CN106987540 A CN 106987540A CN 201710273450 A CN201710273450 A CN 201710273450A CN 106987540 A CN106987540 A CN 106987540A
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- rhodobacter capsulatus
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- 241000191023 Rhodobacter capsulatus Species 0.000 title claims abstract description 19
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
- C12N1/205—Bacterial isolates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Genetics & Genomics (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Medicinal Chemistry (AREA)
- Tropical Medicine & Parasitology (AREA)
- Virology (AREA)
- Biomedical Technology (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
本发明公开了一株荚膜红细菌(Rhodobacter capsulatus strain)DC‑1,其在中国典型培养物保藏中心的保藏编号为CCTCC NO:M2016676,本发明菌株为能高效降解苯系物和甲醛的光合细菌,可用于处理苯系物和甲醛污染的污水,对苯系物的耐受浓度高,降解作用强;对甲醛有去除能力,且此菌株培养条件简单,易于工业产业化实施。
Description
技术领域
本发明涉及一株光合细菌荚膜红细菌及其在甲醛和苯系物净化中的应用,属于污水处理领域。
背景技术
苯系物是环境中常见的污染物,有致癌、致畸、致突变毒性,国家有关饮用水的水质标准均将其列为监测项目。长期接触苯即可能慢性中毒,导致再生障碍性贫血以及白血病。其主要污染来源于装潢材料及油漆等行业排放的废气,作为消毒剂应用于医疗卫生、水产行业产生的废水等。甲醛(HCHO),又名“蚁醛”,在常温下甲醛是一种无色易溶且具有高生物活性和潜在致癌性的微刺激性气体,其对人体的危害具有长期性、潜伏性和隐蔽性的特点。甲醛对人体的伤害,主要是对皮肤、眼睛、粘膜的刺激,进而产生皮炎、眼痛、流泪等症状。甲醛还能损伤人体细胞内的遗传物质,其中最敏感的就是对嗅觉的刺激。长期慢性吸入浓度为0.45mg/m3的甲醛可增加慢性呼吸道疾病的风险;吸入高浓度甲醛(>60mg/m3)可导致喉咙和肺水肿、肺炎、支气管痉挛、喘息、泡沫痰甚至呼吸循环衰竭致死。国际癌症研究中心( IARC)在2004 年的“致癌公报”上,公布了甲醛能引起鼻腔癌和鼻窦癌,并将甲醛列为致癌物。甲醛污染的来源主要包括:木材工业、织布产业、农药、防腐技术与消毒剂中大量应用的甲醛,其中残留的和未反应的会逐渐释放到周围环境,煤、石油、液化气和煤气等燃料燃烧时也会产生醛类污染物。目前,净化苯系物和甲醛的方法主要有化学反应方法、物理吸附技术、植物净化等,但是这些方法存在成本高,处理时间长等缺点。相比之下,微生物对污染物有较强的降解能力、成本低,效果好,而且无二次污染等优点,利用微生物治理污染物已成为了目前重点研究的方向。光合细菌(Photosynthetic Bacteria,简称PSB)是一类以光作为能源、能在厌氧光照或好氧黑暗条件下利用自然界中的有机物、硫化物、氨等作为供氢体兼碳源进行光合作用的微生物的总称。光合细菌广泛分布于自然界的土壤、水田、沼泽、湖泊、江海等处,主要分布于水生环境中光线能透射到的缺氧区。相比真菌来说,光合细菌可在恶劣条件下处理有机物,并且其生命力强,营养要求低,容易培养,生长繁殖速度快,本身无毒,富含蛋白质、类胡萝卜素、维他命,在分解有机物的同时并不会对环境造成二次污染等特点,为微生物治理苯系物污染方面提供了广泛的应用前景。
目前国内外关于能降解苯系物和甲醛的光合细菌报道很少。
发明内容
本发明目的在于提供了一株从昆明滇池湿地公园入口处污水中分离筛选得到的荚膜红细菌(Rhodobacter capsulatus strain)DC-1,其于2016年11月24日保藏于中国典型培养物保藏中心,地址: 中国武汉,武汉大学;保藏编号为CCTCC NO:M2016676。
本发明另一目的是将上述菌种应用在处理苯系物污染水体中。
本发明另一目的是将上述菌种应用在处理甲醛污染水体中。
本发明中荚膜红细菌DC-1具有以下微生物学特性:
1、本发明荚膜红细菌DC-1最适生长的培养基组分为CH3CH2COONa 5g/L、(NH4 )2SO42.0g/L、MgSO4•7H2O 0.2g/L、NaH2PO4•H2O 0.5g/L、K2HPO4 0.66 g/L、CaCl2•2H2O 0.1 g/L。
2、形态学特征
本发明菌株DC-1的菌落呈暗红色、有光泽、透明,菌落呈圆形且较大;菌株的菌体细胞呈弯曲的杆状,且为革兰氏阴性菌,菌体大小为(0.7~0.9)µm×(1.5~2.0)µm;
3、生理生化特征
菌株DC-1最适温度为30℃,最适pH 值为7~8,最适接种量为20%~25%,且在厌氧条件下更适合菌株DC-1的生长;菌株DC-1的生理生化特征如下(见表1);
表1 本发明菌株的生理生化特征
注:“+”代表阳性,“-”代表阴性。
4、本发明菌种在200-800nm波长范围内有4个特征吸收峰,分别位于375、475、509、590nm处;说明该菌种中含有细菌叶绿素a和类胡萝卜素。
5、本发明中所述菌株DC-1能够利用乙醇、甘油、葡萄糖、乙酸钠、丙酸钠、硫代硫酸钠等为碳源来进行生长繁殖;能够利用蛋白胨、酵母膏、氯化铵、硫酸铵、硝酸铵、磷酸二氢铵、碳酸氢铵、硝酸钠等为氮源来进行生长繁殖,菌株DC-1可利用碳源和氮源范围广。
6、本发明中所述菌株DC-1,其16SrDNA序列具有SEQ ID NO:1所示的核苷酸序列。
本发明的优点及效果:
通过对该菌株的生理活性进行研究,用分子生物学方法确定它的分类地位;证明本发明提供的荚膜红细菌具有以下优点:生长速度快、生长力强、可利用碳源和氮源范围广等优点;并且该菌株对苯和甲醛的耐受浓度及去除效果较好,能将4mM /L的苯和2mM /L的甲醛全部降解;可用于处理苯系物和甲醛污染的污水,且此菌株培养条件简单,易于工业产业化实施。
附图说明
图1为本发明菌株形态学示意图;
图2为本发明菌株DC-1的显微示意图;
图3为菌株DC-1吸收光谱;
图4为不同碳源对菌株DC-1生长的影响;
图5为不同氮源对菌株DC-1生长的影响;
图6为温度对菌株DC-1生长的影响;
图7为pH值对菌株DC-1生长的影响;
图8为接种量对菌株DC-1生长的影响;
图9为氧气对菌株DC-1生长的影响;
图10为不同苯浓度下菌株DC-1的生长情况;
图11为不同苯浓度下菌株DC-1净化苯的能力;
图12为不同甲醛浓度下菌株DC-1的生长情况;
图13为不同甲醛浓度下菌株DC-1净化甲醛的能力。
具体实施方式
下面通过实施例和附图对本发明作进一步详细说明,但本发明保护范围不局限于所述内容。实施例中方法如无特殊说明,按常规操作进行,如无特殊说明使用试剂均为常规购试剂或按常规方法配制的试剂。
实施例1:荚膜红细菌DC-1的分离、纯化和鉴定
1、将从昆明滇池湿地公园入口处采集到污水除杂后,倒入装有500mL富集培养液(配方NaCl 2.5 g、MgSO4·7H2O 0.05 g、NH4Cl 1.0 g、NaHCO3 2.5 g、KH2PO4 2.75 g、CH3COONa 6g、酵母粉2 g,蒸馏水1000 mL,pH 值为7.0)的矿泉水瓶中,混合均匀,封口;最后置于28℃,60W白炽灯下光照培养7-8天;待培养液变成红色或者血红色,吸出50mL红色液体,倒入装有新鲜富集培养液的矿泉水瓶中,连续富集培养3次;用RCVBN培养液(配方为CH3COONa 5.0g、CH3CH2COONa 3.0g、NaCl 2.5g、MgSO4·7H2O 1.5g、(NH4 )2SO4 0.5g、KH2PO4 1.5g、K2HPO40.6g、CaCl2 0.05g、MnSO4 5mg、FeSO4 5mg、酵母膏0.5g、蛋白胨20mg、谷氨酸0.5mg、H2O1000mL、pH7.0)对富集液中的光合细菌进行筛选分离;用1 mL 移液管取不同稀释度的样品菌液( 10-5、10-6、10-7、10-8 CFU/m L) 加到灭菌的试管中,后加入15 mL 灭菌的45℃光合细菌分离培养基(配方为乙酸钠3. 0 g、酵母膏3. 0 g、氯化钙0. 3 g、硫酸镁0. 5 g、调节pH值至7. 4;其中底层培养基:琼脂0.8%;上层培养基:琼脂1%),混合均匀后,倒入平皿;待培养基冷凝后,上层加5mL分离培养基,冷却后置于28℃、60 W 的白炽灯照射下培养7天,如果菌落不明显,则继续培养;挑取红色不同形态菌落,采用双层平板法,用纯化培养基反复划线纯化2-3 次,将获得了纯净单菌落(见图1)。图为菌株DC-1双层平层法照片,由图可以看出菌株DC-1的菌落,呈暗红色、有光泽、透明,菌落呈圆形且较大。
2、用灭菌的牙签挑取平板上的纯培养物,转入装有RCVBN培养液的25mL厌氧管中,混合均匀,装满密封,置于28℃,60W白炽灯下光照培养7-8天;待培养液变成血红色。
3、对平板上纯化的单菌株进行菌落形态观察,取菌体涂片,进行革兰氏染色,并在显微镜下观察菌体形态(见图2);图2为菌株DC-1的显微观察,由图可以看出菌株DC-1的菌体细胞呈弯曲的杆状,且为革兰氏阴性菌,菌体大小为(0.7~0.9)µm×(1.5~2.0)µm。
4、生理生化特征
菌株DC-1的生理生化参照常见细菌系统鉴定手册方法进行,结果见下表:
注:“+”代表阳性,“-”代表阴性。
5、光合细菌吸光度的测定
将光合细菌种子液接种于含有RCVBN培养液的厌氧管中,培养至液体颜色变红。无菌条件下用移液管取2mL培养液至离心管中,8000转每分钟离心15分钟,用生理盐水将活细胞离心洗涤3次后,重新悬浮于60%(600g/L)的蔗糖溶液中。用60%的蔗糖溶液作空白对照,在波长200-800nm范围内测定该细菌的吸光度值,绘制吸光度曲线。图3为菌株DC-1吸收光谱,由图可以看出菌株DC-1在200-800nm波长范围内有4个特征吸收峰,分别位于375、475、509、590nm处。在475nm和509nm处有一个特殊吸收双峰,说明活细胞中存在类胡萝卜素;在375nm和590nm处都有吸收峰,说明活细胞中存在细菌叶绿素a。光合细菌的吸收光谱主要受类胡萝卜素和细菌叶绿素a成分的影响;通过光合细菌吸光度的测定来确定该菌株的最大吸收峰值。
6、碳源和氮源的利用情况
6.1碳源利用试验基础培养基:(NH4 )2SO4 2.0g、MgSO4•7H2O 0.2g、NaH2PO4•H2O 0.5g、K2HPO4 0.5g、CaCl2•2H2O 0.1g、蒸馏水1000mL、调节pH值至7.0。
分别加入碳源:乙醇、甘油、葡萄糖、蔗糖、乙酸钠、丙酸钠、硫代硫酸钠、碳酸氢钠、L-苹果酸、L-谷氨酸,其中糖醇类添加量为0.5%,其他碳源添加量为0.2%;利用25mL的厌氧管,接种量为20%、pH为7、温度为28℃,60W白炽灯下培养7d,实验设置3个重复,在375nm下测定菌液的吸光度值;图4为不同碳源对菌株DC-1生长的影响,由图可以看出菌株DC-1较适宜的碳源为丙酸钠。
6.2氮源利用试验基础培养基:KH2PO4 1.36g、CaCl2•2H2O 0.5g、Na2HPO4 2.13g、葡萄糖10g、MgSO4•7H2O 0.2g、FeSO4•7H2O 0.05g蒸馏水1000mL、pH值调节至7.0;分别加入氮源(浓度为0.1%)蛋白胨、酵母膏、氯化铵、硫酸铵、硝酸铵、磷酸二氢铵、碳酸氢铵、硝酸钠。
利用25mL的厌氧管,接种量为20%、pH为7、温度为28℃,60W白炽灯下培养7d,实验设置3个重复,在375nm下测定菌液的吸光度值;图5为不同氮源对菌株DC-1生长的影响,由图可以看出菌株DC-1较适宜的氮源为硫酸铵。
7、荚膜红细菌DC-1的分子鉴定
PCR引物由昆明硕擎生物科技有限公司提供,其中上游引物27F: 5-agagtttgatcctggctcag-3;下游引物1492R:5-ggttaccttgttacgactt-3;
扩增体系(47μl):27F 1μl、1492R 1μl,金牌Mix 45μl,加入光合细菌单菌落量(直接用牙签挑取细菌菌落)。
扩增条件:98℃ 2 min;(98 ℃ 10 s,58℃ 15 s,72 ℃,30s)30个循环;72 ℃5min;
16S rDNA PCR 扩增产物经1.2% 琼脂糖凝胶电泳检测正确后,将PCR 产物交由昆明硕擎生物科技有限公司进行测序,将所测得的16S rDNA序列在GenBank 数据库中进行同源比对,比对结果显示和Rhodobacter capsulatus SB 1003 NC 014034.1的相似性为99%,确定该菌种为荚膜红细菌,命名为Rhodobacter capsulatus DC-1。
实施例2:光合细菌培养条件的优化
1、温度的确定在25mL的厌氧管中接入20%的种子液,用液体培养基(配方为CH3CH2COONa 5g/L、(NH4 )2SO42.0g/L、MgSO4•7H2O 0.2g/L、NaH2PO4•H2O 0.5g/L、K2HPO4 0.66 g/L、CaCl2•2H2O 0.1 g/L。)装满厌氧管,在pH 为7的条件下,将培养温度分别设定为20、25、30、35℃;光照培养7d,实验设置3个重复,每隔24h测定菌体培养液在375nm下的OD值,来确定最佳培养温度。图6为温度对菌株DC-1生长的影响,由图6可以看出菌株DC-1最佳培养温度为30℃。
2、pH的确定在25mL的厌氧管中接入20%的种子液,用液体培养基(配方为CH3CH2COONa 5g/L、(NH4 )2SO42.0g/L、MgSO4•7H2O 0.2g/L、NaH2PO4•H2O 0.5g/L、K2HPO4 0.66 g/L、CaCl2•2H2O 0.1 g/L。)装满厌氧管,在温度为30℃的条件下,将培养pH值分别设定为5、6、7、8、9。光照培养7d,实验设置3个重复,每隔24h测定菌体培养液在375nm下的OD值,来确定最佳培养pH。图7为pH值对菌株DC-1生长的影响,由图7可以看出菌株DC-1最佳培养pH7 ~8。
3、接种量的确定在温度为30℃、pH值为7的条件下,分别在25mL的厌氧管中接入体积为10%、15%、20%、25%、30%种子液,用液体培养基(配方为 CH3CH2COONa 5g/L、(NH4 )2SO42.0g/L、MgSO4•7H2O 0.2g/L、NaH2PO4•H2O 0.5g/L、K2HPO4 0.66 g/L、CaCl2•2H2O 0.1 g/L。)装满厌氧管,光照培养7d实验设置3个重复,每隔24h测定菌体培养液在375nm下的OD值,来确定菌种最佳接种。图8为pH值对菌株DC-1生长的影响,由图可以看出菌株DC-1最佳接种量为20%~ 25%。
4、氧气对光合细菌生长情况的影响
A组:在25mL的厌氧管中装1/3容量的接种液体培养基,在厌氧管外罩有黑色塑料袋,摇床振荡培养(120r/min);B组:在25mL的厌氧管中装1/2容量的接种液体培养基;C组:在25mL的厌氧管中接种的液体培养基,密封,静置培养,5d后取样,在375nm下测定培养物的OD值,来确定菌种需氧条件。图9为氧气对菌株DC-1生长的影响,由图可以看出菌株DC-1在厌氧条件下生长较好。
实施例3:菌株DC-1净化苯系物的能力
菌株DC-1浓度为20%的液体培养物分别接种于含有2mM、4mM、6mM苯的液体培养基中,30℃,60W白炽灯下光照培养0、1、2、3、4、5、6、7、8d,实验设置3个重复,分别测定其各个时间点菌株DC-1的菌体浓度及剩余液体苯浓度;苯含量测定的具体步骤如下:
1、甲醛-硫酸溶液的配制:在100 mL优级浓硫酸中加0.10 mL 10 %甲醛溶液混合,冰冷保存(用时制备);
(在硫酸存在下,苯系物与甲醛反应生成黄棕色二苯基甲烷聚合体,该有色化合物的最大吸收波长为465 nm,用1cm 比色皿,以纯水为参比,测其吸光值。)
2、苯标准溶液的配制:在50 mL 容量瓶中加25 mL 乙醇,准确称重之后,加入约0.5 mL新蒸馏过的苯,再准确称重,两次重量之差即为苯的重量,用纯水稀释至刻度,计算其浓度。使用时用纯水配成100、200、300、500、1000μg/mL 的苯标准溶液;
3、5mL的反应体系包括甲醛-硫酸溶液4.9mL,苯标准溶液0.10 mL,反应体系混匀后,在水中放置5min,在波长465 nm 处,用1cm 比色皿,以纯水为参比,测定其吸光度。以标准曲线计算苯的浓度;计算苯的浓度。
图10为不同苯浓度下菌株DC-1的生长情况,由图可以看出菌株DC-1在苯浓度为2-4mM/L时,菌体浓度随着培养时间的增加而增加;当苯浓度为6mM/L时,菌体浓度随着培养时间的增加而减少,所以菌株DC-1对苯的耐受浓度为6mM/L。
图11不同苯浓度下菌株DC-1净化苯的能力,由图可以看出菌株DC-1, 6d可将2mM/L的苯全部降解,8d可将4mM /L的苯全部降解。菌株DC-1对苯的降解作用比较强。
实施例4:菌株DC-1净化甲醛的能力
菌株DC-1浓度为20%的液体培养物分别接种于含有2mM、4mM、6mM甲醛的液体培养基中,30℃,60W白炽灯下光照培养0、1、2、3、4、5、6、7、8d,实验设置3个重复,分别测定其各个时间点剩余液体甲醛浓度。液体甲醛浓度的测定方法:按照宋中邦等人文献中所报道的方法来测定。
图12为不同甲醛浓度下菌株DC-1的生长情况,由图可以看出菌株DC-1在苯浓度为2~4mM/L时,菌体浓度随着培养时间的增加而增加;当苯浓度为6mM/L时,菌体浓度随着培养时间的增加而减少,所以菌株DC-1对苯的耐受浓度为6mM/L。
图13不同甲醛浓度下菌株DC-1净化甲醛的能力,由图可以看出菌株DC-1, 8d可将2mM /L的甲醛全部降解;菌株DC-1对甲醛具有一定的降解作用。
序列表
<110> 昆明理工大学
<120> 一株荚膜红细菌及其应用
<160> 3
<170> PatentIn version 3.3
<210> 1
<211> 1305
<212> DNA
<213> 荚膜红细菌DC-1
<400> 1
cttcgggtct agcggcggac gggtgagtaa cgcgtgggaa cgtgcccttt gctacggaat 60
agccccggga aactgggagt aataccgtat gtgcccttcg ggggaaagat ttatcggcaa 120
aggatcggcc cgcgttggat taggtagttg gtggggtaat ggcctaccaa gccgacgatc 180
catagctggt ttgagaggat gatcagccac actgggactg agacacggcc cagactccta 240
cgggaggcag cagtggggaa tcttagacaa tgggggaaac cctgatctag ccatgccgcg 300
tgagcgatga aggccttagg gttgtaaagc tctttcaggt gggaagataa tgacggtacc 360
accagaagaa gccccggcta actccgtgcc agcagccgcg gtaatacgga gggggctagc 420
gttgttcgga attactgggc gtaaagcgca cgtaggcgga tcagaaagtc agaggtgaaa 480
tcccagggct caaccttgga actgcctttg aaactcctgg tcttgaggtc gagagaggtg 540
agtggaattc cgagtgtaga ggtgaaattc gtagatattc ggaggaacac cagtggcgaa 600
ggcggctcac tggctcgata ctgacgctga ggtgcgaaag cgtggggagc aaacaggatt 660
agataccctg gtagtccacg ccgtaaacga tgaatgccag tcgtcggcag gcatgcctgt 720
cggtgacaca cctaacggat taagcattcc gcctggggag tacggtcgca agattaaaac 780
tcaaaggaat tgacgggggc ccgcacaagc ggtggagcat gtggtttaat tcgaagcaac 840
gcgcagaacc ttaccaaccc ttgacatcgg gatcgcggtt accggagacg gtttccttca 900
gttcggctgg atcccagaca ggtgctgcat ggctgtcgtc agctcgtgtc gtgagatgtt 960
cggttaagtc cggcaacgag cgcaacccac actttcagtt gccatcattc agttgggcac 1020
tctggaagaa ctgccgatga taagtcggag gaaggtgtgg atgacgtcaa gtcctcatgg 1080
cccttacggg ttgggctaca cacgtgctac aatggtggtg acaatgggcc aatcccaaaa 1140
agccatctca gttcggattg gggtctgcaa ctcgacccca tgaagtcgga atcgctagta 1200
atcgcgtaac agcatgacgc ggtgaatacg ttcccgggcc ttgtacacac cgcccgtcac 1260
accatgggaa ttgggtctac cctaagatgg tgcgccaacc cgcaa 1305
<210> 2
<211> 20
<212> DNA
<213> 人工序列
<400> 2
agagtttgat cctggctcag 20
<210> 3
<211> 19
<212> DNA
<213> 人工序列
<400> 3
ggttaccttg ttacgactt 19
Claims (3)
1.一株荚膜红细菌(Rhodobacter capsulatus strain)DC-1,其在中国典型培养物保藏中心的保藏编号为CCTCC NO:M2016676。
2.权利要求1所述荚膜红细菌在处理苯系物污染水体中的应用。
3.权利要求1所述荚膜红细菌在处理甲醛污染水体中的应用。
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CN108131736A (zh) * | 2017-08-15 | 2018-06-08 | 云南万魁生物科技有限公司 | 一种生物空气净化器 |
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Cited By (6)
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CN107674843A (zh) * | 2017-08-15 | 2018-02-09 | 云南万魁生物科技有限公司 | 一株夹膜红细菌rc1及其应用 |
CN108131736A (zh) * | 2017-08-15 | 2018-06-08 | 云南万魁生物科技有限公司 | 一种生物空气净化器 |
CN107674843B (zh) * | 2017-08-15 | 2020-09-25 | 云南万魁生物科技有限公司 | 一株夹膜红细菌rc1及其应用 |
CN108131736B (zh) * | 2017-08-15 | 2024-01-02 | 云南万魁生物科技有限公司 | 一种生物空气净化器 |
CN110241236A (zh) * | 2019-06-14 | 2019-09-17 | 湖南农业大学 | 用于鉴定荚膜红细菌的特异性pcr引物、试剂盒和用途 |
CN110241236B (zh) * | 2019-06-14 | 2022-11-11 | 湖南农业大学 | 用于鉴定荚膜红细菌的特异性pcr引物、试剂盒和用途 |
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