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Krishnamoorthy Ramasamy,Manoharan Melvin Joe,김기윤,이선미,Charlotte Shagol,Anandham Rangasamy1,정종배,Md. Rashedul Islam,사동민 한국토양비료학회 2011 한국토양비료학회지 Vol.44 No.4
Soil microorganisms play a major role in improving soil fertility and plant health. Symbiotic arbuscular mycorrhizal fungi (AMF) form a key component of the soil microbial populations. AMF form a mutualistic association with the host plant and exert a positive influence on its growth and nutrient uptake. The establishment of mycorrhizal symbioses with the host plant can positively be influenced by plant growth promoting rhizobacteria through various mechanisms such as increased spore germination and hyphal permeability in plant roots. Though there are evidences that combined interactions between AMF and PGPR can promote the plant growth however mechanisms of these interactions are poorly understood. Better understanding of the interactions between AMF and other microorganisms is necessary for maintaining soil fertility and enhancing crop production. This paper reviews current knowledge concerning the interactions between AMF and PGPR with plants and discusses on enhanced nutrient availability, biocontrol, abiotic stress tolerance and phytoremediation in sustainable agriculture.
Anandham, Rangasamy,Weon, Hang-Yeon,Kim, Soo-Jin,Kim, Yi-Seul,Kwon, Soon-Wo Microbiology Society 2010 International journal of systematic and evolutiona Vol.60 No.7
<P>A strictly aerobic, Gram-staining-negative, oxidase- and catalase-positive, non-motile, rod-shaped bacterium, designated strain 5416T-29<SUP>T</SUP>, was isolated from air and was characterized by using a polyphasic approach. Colonies were reddish pink and circular with entire margins. Flexirubin-type pigments were absent. The strain formed a distinct phylogenetic lineage within the family <I>Cytophagaceae</I> of the phylum <I>Bacteroidetes</I>. Strain 5416T-29<SUP>T</SUP> did not show more than 88 % 16S rRNA gene sequence similarity to the type strain of any recognized species. The major cellular fatty acids were C16 : 1<I>ω</I>5<I>c</I>, iso-C17 : 0 3-OH and iso-C15 : 0. The polar lipids were phosphatidylethanolamine, one unknown amino lipid and several unknown polar lipids. Menaquinone-7 (MK-7) was the major respiratory quinone. The G+C content of the DNA of strain 5416T-29<SUP>T</SUP> was 45.5 mol%. Results of phenotypic and phylogenetic analyses clearly indicate that strain 5416T-29<SUP>T</SUP> represents a novel species of a new genus in the family <I>Cytophagaceae</I>, for which the name <I>Rhodocytophaga aerolata</I> gen. nov., sp. nov. is proposed. The type strain of <I>Rhodocytophaga aerolata</I> is 5416T-29<SUP>T</SUP> (=KACC 12507<SUP>T</SUP> =DSM 22190<SUP>T</SUP>).</P>
Acinetobacter brisouii sp. nov., Isolated from a Wetland in Korea
Anandham, Rangasamy,Weon, Hang-Yeon,Kim, Soo-Jin,Kim, Yi-Seul,Kim, Byung-Yong,Kwon, Soon-Wo 한국미생물학회 2010 The journal of microbiology Vol.48 No.1
A bacterial strain $5YN5-8^T$ was isolated from peat layer on Yongneup in Korea. Cells of strain $5YN5-8^T$ were strictly aerobic, Gram-negative, coccobacilli, non-spore forming, and non-motile. The isolate exhibited optimal growth at $28^{\circ}C$, pH 7.0, and 0-1% NaCl. Results of 16S rRNA gene sequence analyses indicated a close relationship of this isolate to Acinetobacter calcoaceticus (97.8% similarity for strain DSM $30006^T$). It also exhibited 94.4-97.8% 16S rRNA gene sequence similarities to the validly published Acinetobacter species. The value for DNA-DNA hybridization between strain $5YN5-8^T$ and other members of the genus Acinetobacter ranged from 16 to 28%. Predominant cellular fatty acids were $C_{18:1}$ ${\omega}9c$, summed feature 4 containing $C_{15:0}$ iso 2-OH and/or $C_{16:1}$ ${\omega}7c$, and $C_{16:0}$. The DNA G+C content was 43.9 mol%. Phylogenetic, phenotypic, and chemotaxonomic data accumulated in this study revealed that the isolate could be classified in a novel species of the genus Acinetobacter. The name Acinetobacter brisouii sp. nov. is proposed for the novel species, with $5YN5-8^T$ (=KACC $11602^T$ =DSM $18516^T$) as the type strain.
Microbacterium suwonense sp. nov., Isolated from Cow Dung
Rangasamy Anandham,Tomohiko Tamura,Moriyuki Hamada,원항연,Soo-Jin Kim,Yi-Seul Kim,Ken-ichiro Suzuki,권순우 한국미생물학회 2011 The journal of microbiology Vol.49 No.5
An actinomycete strain, designated M1T8B9^T, was isolated from cow dung in Suwon, Republic of Korea. The isolate was a Gram-positive, nonmotile, and non-spore-forming bacterium. Phylogenetic evaluation based on 16S rRNA gene sequence similarity showed that this isolate belongs to the genus Microbacterium, with its closest neighbors being Microbacterium soli DCY17^T (98.2%) and Microbacterium esteraromaticum DSM 8609^T (98.0%). The polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol, and one unknown glycolipid. Strain M1T8B9^T contained the major fatty acids C_(15:0) anteiso, C_(16:0) iso, C_(17:0) anteiso, and C_(15:0) iso, and the cell-wall peptidoglycan was of type B2β. According to DNA-DNA hybridization studies, strain M1T8B9^T showed 42% and 26% relatedness with M. soli DCY17^T and M. esteraromaticum DSM 8609^T, respectively. On the basis of the data presented, strain M1T8B9^T is considered to represent a novel species of the genus Microbacterium, for which the name Microbacterium suwonense sp. nov. is proposed. The type strain is M1T8B9^T (=KACC 14058^T =NBRC 106310^T).
Paraherbaspirillum soli gen. nov., sp. nov. Isolated from Soil
Rangasamy Anandham,김수진,문지영,원항연,권순우 한국미생물학회 2013 The journal of microbiology Vol.51 No.2
A bacterial strain, designated JS5-2T, was isolated from soil collected from Jeju Island, Republic of Korea. The cells of the strain were Gram-negative, nonspore forming, catalaseand oxidase-positive, aerobic, nonmotile and rod-shaped. Strain JS5-2T exhibited 96.2–97.2, 95.1–96.3, and 95.4–95.8%16S rRNA gene sequence similarities to the genera Herbaspirillum,Oxalicibacterium, and Herminiimonas, respectively. The highest sequence similarities were with Herbaspirillum autotrophicum IAM 14942T (97.2%) and Herbaspirillum frisingense GSF30T (97.1%). The major fatty acids of strain JS5-2T were C16:0(35.0%), C17:0 cyclo (19.9%), C18:1 ω7c (11.4%),and summed feature 3 (C16:1 ω7c/C15:0 iso 2-OH) (15.2%),and the major polar lipids of strain JS5-2T were diphosphatidylglycerol and an unknown aminophospholipid. The strain contained Q-8 as the predominant ubiquinone. DNA-DNA relatedness values between strain JS5-2T and H. autotrophicum IAM 14942T, and H. frisingense GSF30T were 32 and 35%, respectively. The DNA G+C content of strain JS5-2T was 59.0 mol%. On the basis of phenotypic, genotypic, and physiological evidence, strain JS5-2T represents a novel species of a new genus, for which the name Paraherbaspirillum soli gen. nov., sp. nov. is proposed. The type strain JS5-2T (=KACC 12633T =NBRC 106496T) is proposed.
Leucobacter denitrificans sp. nov., Isolated from Cow Dung
원항연,Rangasamy Anandham,Tomohiko Tamura,Moriyuki Hamada,김수진,김이슬,Ken-ichiro Suzuki,권순우 한국미생물학회 2012 The journal of microbiology Vol.50 No.1
The bacterial strain M1T8B10T was isolated from cow dung in Suwon, Republic of Korea. The strain was a Gram stainpositive rod, nonmotile, and non-spore-forming. According to 16S rRNA gene sequence analysis, the strain fell within the clade of the genus Leucobacter, showing the highest sequence similarities with Leucobacter aridicollis L-9T (98.7%), Leucobacter iarius 40T (98.4%), and Leucobacter komagatae JCM 9414T (98.2%). Cell-wall peptidoglycan contained the diagnostic diamino acid 2,4-diaminobutyric acid of the genus Leucobacter, showing B-type cross-linked peptidoglycans. The major fatty acids were anteiso-C15:0, iso-C16:0, and anteiso-C17:0. The quinone system consisted of the menaquinones MK-11 (78%) and MK-10 (22%). The polar lipid profiles contained diphosphatidylglycerol, phosphatidylglycerol, and an unidentified glycolipid. Differences in several physiological features including nitrate reduction enabled the isolate to be differentiated from all recognized Leucobacter species. Based on these phylogenetic, chemotaxonomic, and phenotypic results, the isolate represents a novel species, for which the name Leucobacter denitrificans sp. nov. is proposed. The type strain is M1T8B10T (=KACC 14055T =NBRC 106309T).
Indiragandhi, Pandiyan,Anandham, Rangasamy,Madhaiyan, Munusamy,Kim, Gil-Hah,Sa, Tongmin Oxford University Press 2008 FEMS microbiology letters Vol.289 No.1
<P>Siderophore production by entomo- and phytopathogens, plus the cross-utilization of these siderophores and expression of outer membrane receptor proteins (OMRPs) by Diamondback moth (DBM) gut bacterial strains, were all examined. All the tested strains grew in the presence of 2, 2'-dipyridyl, and the Brachybacterium sp. PSGB10, Pseudomonas sp. PRGB06, and Serratia marcescens FLGB16 strains were found to cross-utilize the siderophores of various entomopathogens, including Bacillus thuringiensis. A sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis also showed the presence of the OMRPs responsible for the siderophore cross-utilization. In contrast, Stenotrophomonas sp. PRGB08 was unable to cross-utilize siderophores and did not express OMRPs. Thus, siderophore cross-utilization and OMRP expression by the DBM gut bacterial strains would seem to support the potential for microbial populations in the insect gut to evolve efficient mechanisms to overcome any iron limitation imposed by the host insect and eventually contribute to the defense mechanism of the host insect. Furthermore, it is important to consider that other biologically active metabolites produced by insect gut microorganisms may also confer a protective effect on a host insect species.</P>