Bacillus subtilis Melindungi Tanaman - Mekanisme, Antibiotik dan caranya Bekerja

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Pemateri: Gen Adi W., S.P., M.Sc.

Bacillus subtilis merupakan salah satu bakteri baik yang memiliki peran penting dalam melindungi tanaman dari serangan patogen. Dalam video ini dijelaskan bagaimana mekanisme kerja Bacillus subtilis dalam melindungi tanaman, mulai dari kemampuannya menghasilkan berbagai jenis antibiotik alami seperti surfaktin, iturin, dan fengisin, hingga perannya dalam membentuk lapisan pelindung di sekitar akar tanaman (rhizosfer). Bakteri ini tidak hanya menekan pertumbuhan jamur dan bakteri penyebab penyakit, tetapi juga membantu meningkatkan pertumbuhan tanaman melalui stimulasi hormon dan penyerapan nutrisi yang lebih efisien. Dengan memahami cara kerja Bacillus subtilis, kita dapat memanfaatkannya sebagai agen hayati untuk mendukung pertanian yang ramah lingkungan dan berkelanjutan. Video ini sangat cocok untuk mahasiswa, peneliti, maupun praktisi pertanian yang ingin mengetahui lebih dalam tentang mikroorganisme bermanfaat dalam dunia bioteknologi dan pengendalian hayati.

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DAFTAR PUSTAKA
Hotta, K; Kim, CY; Fox, DT; Koppisch, AT (July 2010)."Siderophore-mediated iron acquisition in Bacillus anthracis and related strains".Microbiology.156(Pt 7): 1918–25.doi:10.1099/mic.0.039404-0.PMID20466767.

May, Jürgen J.; Wendrich, Thomas M.; Marahiel, Mohamed A. (2001-03-09)."The dhb Operon of Bacillus subtilisEncodes the Biosynthetic Template for the Catecholic Siderophore 2,3-Dihydroxybenzoate-Glycine-Threonine Trimeric Ester Bacillibactin".Journal of Biological Chemistry.276(10): 7209–7217.doi:10.1074/jbc.M009140200.ISSN0021-9258.PMID11112781.

For the purposes of this page, pyoverdine will generally refer (unless otherwise noted) to the pyoverdine produced byPseudomonas aeruginosastrain PAO1. It has been subjected to the most extensive study and can be considered the prototypical siderophore.

^S. Wendenbaum; P. Demange; A. Dell; J. M. Meyer; M. A. Abdallah (1983). "The structure of pyoverdine Pa, the siderophore of Pseudomonas aeruginosa".Tetrahedron Letters.24(44): 4877–4880.doi:10.1016/S0040-4039(00)94031-0.

^Menhart, N.; Thariath, A.; Viswanatha, T. (1991). "Characterization of the pyoverdines of Azotobacter vinelandii ATCC 12837 with regard to heterogeneity".Biology of Metals.4(4): 223–32.doi:10.1007/bf01141185.PMID1838001.S2CID8712926.

^Jump up to:abcLamont, Iain L.; Beare, Paul A.; Ochsner, Urs; Vasil, Adriana I.; Vasil, Michael L. (2002-05-14)."Siderophore-mediated signaling regulates virulence factor production in Pseudomonasaeruginosa".Proceedings of the National Academy of Sciences of the United States of America.99(10): 7072–7077.Bibcode:2002PNAS...99.7072L.doi:10.1073/pnas.092016999.ISSN0027-8424.PMC124530.PMID11997446.

^Jump up to:abcBanin, Ehud; Vasil, Michael L.; Greenberg, E. Peter (2005-08-02)."Iron and Pseudomonas aeruginosa biofilm formation".Proceedings of the National Academy of Sciences of the United States of America.102(31): 11076–11081.Bibcode:2005PNAS..10211076B.doi:10.1073/pnas.0504266102.ISSN0027-8424.PMC1182440.PMID16043697.

^Jump up to:abcdKirienko, Natalia V.; Kirienko, Daniel R.; Larkins-Ford, Jonah; Wählby, Carolina; Ruvkun, Gary; Ausubel, Frederick M. (2013-04-17)."Pseudomonas aeruginosa disrupts Caenorhabditis elegans iron homeostasis, causing a hypoxic response and death".Cell Host & Microbe.13(4): 406–416.doi:10.1016/j.chom.2013.03.003.ISSN1934-6069.PMC3641844.PMID23601103.

^Jump up to:abcKirienko, Natalia V.; Ausubel, Frederick M.; Ruvkun, Gary (2015-02-10)."Mitophagy confers resistance to siderophore-mediated killing by Pseudomonas aeruginosa".Proceedings of the National Academy of Sciences of the United States of America.112(6): 1821–1826.Bibcode:2015PNAS..112.1821K.doi:10.1073/pnas.1424954112.ISSN1091-6490.PMC4330731.PMID25624506.

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