Journal of Tropical Oceanography ›› 2023, Vol. 42 ›› Issue (3): 126-135.doi: 10.11978/2022149CSTR: 32234.14.2022149
• Marine Geology • Previous Articles Next Articles
GUO Yunxue1,2(), CAI Xingsheng1, GU Jiayu1,2, WANG Xiaoxue1,2
Received:
2022-07-03
Revised:
2022-08-31
Online:
2023-05-10
Published:
2022-09-14
Supported by:
GUO Yunxue, CAI Xingsheng, GU Jiayu, WANG Xiaoxue. Effects of polar and lateral flagella on biofilm formation in marine Pseudoalteromonas[J].Journal of Tropical Oceanography, 2023, 42(3): 126-135.
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Tab. 1
Bacterial strains and plasmids used in this study"
描述 | 来源 | ||
---|---|---|---|
菌株 | SCSIO 11900 | 野生型, 分离自中国南海4m水深的珊瑚黏液层 | Zeng et al, |
11900ΔmotAB | 敲除motAB的SCSIO 11900菌 | 本研究 | |
11900 ΔfliF | 敲除fliF的SCSIO 11900菌 | 本研究 | |
11900 ΔflgK | 敲除flgK的SCSIO 11900菌 | 本研究 | |
11900 ΔflaA | 敲除flaA的SCSIO 11900菌 | 本研究 | |
SM9913 | 野生型, 分离自冲绳海槽附近1855m水深的沉积物 | Qin et al, | |
9913ΔmotAB | 敲除motAB的SM9913菌 | 本研究 | |
9913 ΔfliF | 敲除fliF的SM9913菌 | 本研究 | |
9913 ΔflgK | 敲除flgK的SM9913菌 | 本研究 | |
9913 ΔflaA | 敲除flaA的SM9913菌 | 本研究 | |
ΔLF | 敲除侧生鞭毛基因簇的SM9913菌 | 本研究 | |
ΔLFΔfliF | 在ΔfliF中敲除侧生鞭毛基因簇基因的SM9913菌 | 本研究 | |
ΔLFΔflgk | 在ΔflgK中敲除侧生鞭毛基因簇基因的SM9913菌 | 本研究 | |
ΔLFΔflaA | 在ΔflaA中敲除侧生鞭毛基因簇基因的SM9913菌 | 本研究 | |
WM3064 | 接合转移用的DAP营养缺陷型大肠杆菌, 37°C | 实验室保存 | |
基因敲除质粒 | pK18mobsacB-Ery | pK18mobsacB 质粒插入pHT304来源的红霉素抗性基因, Kanr, Eryr | Wang et al, |
pK18Ery-11900 motAB | pK18mobsacB-Ery 携带SCSIO 11900 motAB基因上下游片段 | 本研究 | |
pK18Ery-11900 fliF | pK18mobsacB-Ery 携带SCSIO 11900 fliF基因上下游片段 | 本研究 | |
pK18Ery-11900 flgK | pK18mobsacB-Ery 携带SCSIO 11900 flgK基因上下游片段 | 本研究 | |
pK18Ery-11900 flaA | pK18mobsacB-Ery 携带SCSIO 11900 flaA基因上下游片段 | 本研究 | |
pK18Ery-9913 motAB | pK18mobsacB-Ery 携带SM9913端生鞭毛 motAB基因上下游片段 | 本研究 | |
pK18Ery-9913 fliF | pK18mobsacB-Ery 携带SM9913端生鞭毛fliF基因上下游片段 | 本研究 | |
pK18Ery-9913 flgK | pK18mobsacB-Ery 携带SM9913端生鞭毛flgK基因上下游片段 | 本研究 | |
pK18Ery-9913 flaA | pK18mobsacB-Ery 携带SM9913端生鞭毛flaA基因上下游片段 | 本研究 | |
pK18Ery-9913 LF | pK18mobsacB-Ery 携带SM9913侧生鞭毛基因簇上下游片段 | 本研究 |
Tab. 2
Primers used in this study"
名称 | 序列 | 用途 |
---|---|---|
11900ΔmotAB-up-F | ACATGCATGCGCTAATGCTGCGAT | 用于敲除SCSIO 11900中的motAB |
11900ΔmotAB-up-R | CGGAATTCATTCCCTCCAAAGGTTTTAT | |
11900ΔmotAB-down-F | CGGAATTCAATGACTTGGCTATGTACCT | |
11900ΔmotAB-down-R | CTAG TCTAGATAAGTCACTGATCAATAAAC | |
11900ΔfliF-up-F | ACATGCATGCGCTAATAAAGTTGCTCGATC | 用于敲除SCSIO 11900中的fliF |
11900ΔfliF-up-R | CGGAATTCAATAATTCTCCACTACCTAGTT | |
11900ΔfliF-down-F | CGGAATTCTCAAGAACAAAAACAACTACC | |
11900ΔfliF-down-R | ACGCGTCGACGTACCAGCTGTCTTTCTGCT | |
11900ΔflgK-up-F | ACATGCATGCTGGTGGTTTAACAGTCACGA | 用于敲除SCSIO 11900中的flgK |
11900ΔflgK-up-R | CGGAATTCGTTACTCTACTCCTTGGCGG | |
11900ΔflgK-down-F | CGGAATTCTTATGCGTTTATCAAATAACT | |
11900ΔflgK-down-R | ACGCGTCGACCATTGAGGTTCAAACAATAA | |
11900ΔflaA-up-F | GACTAACATTGCTTACCGCATGAA | 用于敲除SCSIO 11900中的flaA |
11900ΔflaA-up-R | TTTACCATCTCCTAGATTTAAA | |
11900ΔflaA-down-F | ACATAGATGTTAGATTTAAATGAT | |
11900ΔflaA-down-R | TCCATTAGCAATACTAAATTCATT | |
9913ΔmotAB-up-F | ACATGCATGC GCTAGTGCTGCGATCATTT | 用于敲除SM9913中端生鞭毛的motAB |
9913ΔmotAB-up-R | CGGAATTCATTCCCTCCAAAGGTTTTA | |
9913ΔmotAB-down-F | CGGAATTCAATGACTTGGCTATGTACCT | |
9913ΔmotAB-down-R | CTAGTCTAGATTGCTCGATTACTTCATCA | |
9913ΔfliF-up-F | AGAAACCTTGGCACGCTGCCA | 用于敲除SM9913中端生鞭毛的fliF |
9913ΔfliF-up-R | AATAATTCTCCACTACCT | |
9913ΔfliF-down-F | TCAAGAACAAAAACAACTACCTC | |
9913ΔfliF-down-R | TCTTCTAAATTAGCAATACGC | |
9913ΔflgK-up-F | ACATGCATGC GAATAGTCAATCTGAAGGG | 用于敲除SM9913中端生鞭毛的flgK |
9913ΔflgK-up-R | CGGAATTC TTTACCATCTCCTAGTTTCA | |
9913ΔflgK-down-F | CGGAATTC TTTAACAATAAGCTCTATACTTT | |
9913ΔflgK-down-R | CTAG TCTAGA GATAATACTAACCGCTGCC | |
9913ΔflaA-up-F | GTTAGGTGGTTAATAATAATTAAAA | 用于敲除SM9913中端生鞭毛的flaA |
9913ΔflaA-up-R | ACGTTGTAGAATGTTTGATGACTATG | |
9913ΔflaA-down-F | TTTAACAATAAGCTCTATACTTTA | |
9913ΔflaA-down-R | TACCCTCTTAAATTACTGAAAAATT | |
9913LF-up-F | ACATGCATGCGCAGTTCGTGCTCTAGGTAA | 用于敲除SM9913中侧生鞭毛基因簇 |
9913LF-up-R | CGGAATTC AAAATGTCGAAATAAAAGTT | |
9913LF-down-F | CGGAATTC TAAATTTTTAGGATTACAACAA | |
9913LF-down-R | ACGCGTCGACCAAGCATCAGTTGGCTAATA |
Fig. 2
Effects of flagella genes deletion on motility of SCSIO 11900. (a) SCSIO 11900 motile on high salt LB medium other than low salt LB medium; (b) Deletion flagella genes fliF and flgK resulted in the loss of motility of SCSIO 11900 cells; (c) Polar flagella mutant inhibits motility of SCSIO 11900. Wild type SCSIO 11900 and flagella destroyed mutant strains grew in LB medium containing 25‰ NaCl for 24h"
Fig. 3
Loss of flagella affects the growth and biofilm formation of SCSIO 11900. Wild type (WT) SCSIO 11900 and flagella destroyed mutant strains grew in LB medium containing 25‰ NaCl for 7h. (a) The biofilm attached on the inner surface of 96 well plate was stained with 0.1% crystal violet and absorbance was determined at 540 nm; (b) determined absorbance at 620 nm and (c) colony forming units (CFU); (d) The biofilm determined in a was normalized by growth in (b). Statistical analysis was performed using student t-test, and all mutant strains were compared to WT. P< 0.05 was shown with one asterisk and P< 0.01was shown with two asterisks"
Fig. 4
Polar flagella mutant affects motility and biofilm formation of SM9913. (a) Wild type SM9913 and flagella destroyed mutant strains grew in LB medium containing 3‰ agar and 25‰ NaCl for 24h; (b) Wild type SM9913 and flagella destroyed mutant strains grew in LB medium containing 25‰ NaCl in 96-well plate for 24h. The biofilm attached on the inner surface of each well was stained with 0.1% crystal violet and absorbance was determined at 540 nm; (c) Growth was determined as absorbance at 620 nm; (d) The biofilm determined in b was normalized by growth in c (OD540/OD620). Statistical analysis was performed using student t-test, and all mutant strains were compared to WT. P< 0.05 was shown with one asterisk and P< 0.01was shown with two asterisks"
Fig. 5
Loss of lateral flagella inhibits motility of SM9913, but has no effect on biofilm formation. (a)Wild type SM9913 and flagella destroyed mutant strains grew in LB medium containing 25‰ NaCl for 24h; (b) The biofilm attached on the inner surface of 96-well plate was stained with 0.1% crystal violet and normalized by growth"
Tab. 3
Polar flagella exit in P. sp. isolated from different marine environments, and lateral flagella exit in partial strains"
菌株 | 基因组NCBI序列号 | 端生鞭毛 | 侧生鞭毛 | 分离环境 | 参考文献 |
---|---|---|---|---|---|
P. sp. SCSIO 11900 | JEMJ00000000 | + | - | 中国南海4m水深珊瑚黏液层 | Zeng et al, |
P. lipolytica SCSIO 04301 | JDVB00000000 | + | - | 中国南海63m水深沉积物 | Zeng et al, |
P. rubra SCSIO 6842 | CP013611/CP013612 | + | - | 孟加拉湾150m深海水 | Li et al, |
P. sp. SM9913 | CP001796 | + | + | 冲绳海槽附近1855m沉积物 | Qin et al, |
P. tetraodonis UCD-SED8 | LITK01000005 | + | - | 海洋沉积物 | Lee et al, |
P. haloplanktis TAC125 | CR954246 | + | - | 大西洋沿岸海水 | Medigue et al, |
P. sp. PAMC 22718 | AJTK00000000 | + | + | 喀拉海低温海水 | Park et al, |
P. sp. OCN003 | CP011011 | + | - | 夏威夷珊瑚礁区发病珊瑚 | Beurmann et al, |
P. distincta ATCC 700518 | NZ_JWIG01000001 | + | - | 白令海的海绵 | Givan et al, |
P. elyakovii ATCC 700519 | JWIH00000000 | + | - | 贻贝的体液 | Givan et al, |
P. lipolytica UCD-48B | LJTC01000005 | + | - | 海草的叶子 | Alexiev et al, |
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