[1] Dôbereiner J. Nitrogen- fixing bacteria of the genus Beijerinckia derxin the rhizosphere of sugar cane. Plant Soil, 1966, 15: 211–216

[2] Asis C A, Kubota M, Ohta H, Arima Y, Chebotar V K, Tsuchiya K, Alzao S. Isolation and partial characterization of endophytic diazotrophs associated with Japanese sugarcane cultivar. Soil Sci Plant Nutr, 2000, 46: 759–765

[3] Govindarajan M, Kwon S W, Weon H Y. Isolation, molecular characterization and growth-promoting activities of endophytic sugarcane diazotroph Klebsiella sp. GR9. World J Microbiol Biotechnol, 2007, 23: 997–1006

[4] 罗霆, 欧阳雪庆, 杨丽涛, 李杨瑞. 一株有固氮能力的甘蔗克雷伯氏菌的分离鉴定及固氮特性. 热带作物学报, 2010, 31: 972–978

Luo T, Ou-Yang X Q, Yang L T, Li Y R. An endophytic nitrogen-fixing bacterium Klebsiella sp. strain L03 from sugarcane: isolation, identification and characterization. Chin J Trop Crops, 2010, 31: 972–978 (in Chinese with English abstract)

[5] Taulé C, Mareque C, Barlocco C, Hackembruch F, Reis V M, Sicardi M, Battistoni F. The contribution of nitrogen fixation to sugarcane (Saccharum officinarum L.), and the identification and characterization of part of the associated diazotrophic bacterial community. Plant Soil, 2012, 356: 35–49

[6] 胡春锦, 林丽, 史国英, 汪茜, 王钱崧, 李杨瑞. 广西甘蔗根际高效联合固氮菌的筛选及鉴定. 生态学报, 2012, 32: 4745–4752

Hu C J, Lin L, Shi G Y, Wang Q, Wang Q S, Li Y R. Screening and identification of associative nitrogen fixation bacteria in rhizosphere of sugarcane in Guangxi. Acta Ecol Sin, 2012, 32: 4745–4752 (in Chinese with English abstract)

[7] Cavalcante VA, Döbereiner J. A new acid-tolerant nitrogen-fixing bacterium associated with sugarcane. Plant Soil, 1988, 108: 23–31

[8] Cocking E C, Stone P J. Davey M R. Intracellular colonization of roots of Arabidopsis and crop plants by Gluconacetobacter diazotrophicus. In Vitro Cell Dev Plant, 2006, 42: 74–82

[9] Luna M F, Galar M L, Aprea J, Molinari M L, Boiardi J L. Colonization of sorghum and wheat by seed inoculation with Gluconacetobacter diazotrophicus. Biotechnol Lett, 2010, 32: 1071–1076

[10] Adriano-Anaya M L, Salvador-Figueroa M, OcampoJ A, García-Romera I. Hydrolytic enzyme activities in maize (Zea mays) and sorghum (Sorghum bicolor) roots inoculated with Gluconacetobacter diazotrophicus and Glomus intraradices. Soil Biol & Biochem, 2006, 38: 879–886

[11] Baldani J L, Baldani V L D, Seldin L, Döbereiner J. Characterization of Herbaspirillum seropedicae gen. nov., a root associated nitrogen-fixing bacterium. Int J Syst Bacteriol, 1986, 36: 86–93

[12] Olivares F L, Baldani V L D, Reis VM, Baldani J I, Döbereiner J. Occurrence of the endophytic diazotrophs Herbaspirillum spp. in root, stems, and leaves, predominantly of gramineae. Biol Fertil Soils, 1996, 21: 197–200

[13] James E K, Olivares F L. Infection and colonization of sugarcane and other graminaceous plants by endophytic diazotrophs. Crit Rev Plant Sci, 1998, 17: 77–119

[14] James E K, Reis V M, Olivares F L, Baldani J I, Döbereiner J. Infection of sugarcane by the nitrogen-fixing bacterium Acetobacter diazotrophicus. J Exp Bot, 1994, 45: 757–766

[15] James E K, Olivares F L, Oliveira A L M, Reis F B, Silva L G. Reis V M. Further observations on the interaction between sugar cane and Gluconacetobacter diazotrophicus under laboratory and greenhouse conditions. J Exp Bot, 2001, 52: 747–76

[16] Dong Z, Canny M J, McCully M E, Roboredo M R, Cabadilla C F, Ortega E, Rodes R. A nitrogen fixing endophyte of sugarcane stems: a new role for the apoplast. Plant Physiol, 1994, 105: 1139–1147

[17] Dong A, Heydrich M, Bernard K, McCully M E. Further evidence that N2 fixing endophytic bacterium from the intercellular spaces of sugarcane stems in Acetobacter diazotrophicus. Appl Environ Microbiol, 1995, 61: 1843–1846

[18] Dong Z, Mccully M E, Canny M J. Does Acetobacter diazotrophicus live and move in the xylem of sugarcane stems? Anatomical and physiological data. Ann Bot, 1997, 80: 147–158

[19] Haseloff J, Siemering K R. The uses of green fluorescent protein in plants. In: Chalfie M, Kain S.eds. Green Fluorescent Protein: Properties, Applications and Protocols. Hobokem, New Jersey: John Wiley&Sons. Inc., 1998. pp 191–220

[20] Singh M K, Kushwaha C, Singh R K. Studies on endophytic colonization ability of two upland rice endophytes, Rhizobium sp. and Burkholderia sp., using green fluorescent protein reporter. Curr Microbiol, 2009, 59: 240–243

[21] Lin L, Li Z G, Hu C J, Zhang X C, Chang S P, Yang L T, Li Y R, An Q L. Plant growth-promoting nitrogen-fixing enterobacteria are in association with sugarcane plants growing in Guangxi, China. Microbes Environ, 2012, 27: 391–398

[22] James E K, Gyaneshwar P, Mathan N, BarraquioW L, Reddy P M, Iannetta P P M, Olivares F L, Ladha J K. Infection and colonization of rice seedlings by the plant growth-promoting bacterium Herbaspirillum seropedicae Z67. Mol Plant Microbe Interact, 2002, 15: 894–906

[23] Roncata-Maccari L D B, Ramos H J O, Pedrosa F O, Alquini Y, Chubatsu L S, Yates M G, Rigo L U, Steffens M B R, Souza E M. Endophytic Herbaspirillum seropesicae expresses nif genes in gramineous plants. FEMS Microbial Ecol, 2003, 45: 39–47

[24] Chi F, Shen S H, Cheng H P, Jing Y X,Youssef G Y, Frank B D. Ascending migration of endophytic rhizobia, from roots to leaves, inside rice plants and assessment of benefits to rice growth physiology. Appl Environ Microbiol, 2005, 71: 7271–7278

[25] Liu X M, Zhao H X, Chen S F. Colonization of maize and rice plants by strain Bacillus megaterium C4. Curr Microbiol, 2006, 52: 186–190

[26] Hurek T, Reinhold-Hurek B, Montagu M V, Kellenberger E. Root colonization and systemic spreading of Azoarcus sp. Stain BH72 in grasses. J Bacteriol, 1994, 176: 1913–1923

[27] 吕泽勋, 李久蒂, 朱至清. 用绿色荧光蛋白基因(gfp)标记产酸克雷伯氏菌SG-11研究其在水稻苗期根部的定殖. 农业生物技术学报, 2001, 9: 13–18

Lu Z X, Li J D, Zhu Z Q. Klebsiella oxytoca SG-11 labeling by green fluorescent protein gene (gfp) and its colonization in rice seedling roots. J Agric Biotechnol, 2001, 9: 13–18 (in Chinese with English abstract)

[28] 陶艳会, 林会, 赵斌. 内生固氮菌HAUM10对水稻的侵染定殖规律及促生效应. 湖北农业科学, 2012, 51: 1257–1262

Tao Y H, Lin H, Zhao B. Infection and colonization of endophytic diazotroph HAUM10 on rice seedlings and its plant growth-promoting role. Hubei Agric Sci, 2012, 51: 1257–1262 (in Chinese with English abstract)

[29] Elbeltagy A, Nishioka K, Sato T, Suzuki H, Ye B, Hamada T, Isawa T, Mitsui H, Minamisawa K. Endophytic colonization and in planta nitrogen fixation by a Herbaspirillum sp. isolated from wild rice species. Appl Environ Microbiol, 2001, 67: 5285–5293

[30] Zakria M, Njoloma J, Saeki Y, Akao S. Colonization and nitrogen-fixing ability of Herbaspirillum sp. Strain B501 gfp1 and assessment of its growth-promoting ability in cultivates rice. Microbes Environ, 2007, 22: 197–206

[31] Njoloma J,Tanaka K, Shimizu T, Nishiguchi T, Zakria M, Akashi R, Oota M, Akao S. Infection and colonization of aseptically micropropagated sugarcane seedling by nitrogen-fixing endophytic bacterium, Herbaspirillum sp. B501 gfp1. Biol Fertil Soils, 2006, 43: 137–143

[32] Liu Y, Chen S F, Li J L. Colonization pattern of Azospirillum brasilense Yu 62 on maize roots. Acta Bot Sin, 2003, 45: 748–752

[33] Reis V M, Olivares F L, Oliveira A L M, Reis F B, Baldani J I, Döbereiner J. Technical approaches to inoculate micropropagated sugar cane plants with Acetobacter diazotrophicus. Plant Soil, 1999, 206: 205–211

[34] Suman A, Gaur A, Shrivastava A K, Yadav R L. Improving sugarcane growth and nutrient uptake by inoculating Gluconacetobacter diazotrophicus. Plant Growth Regul, 2005, 47: 155–162

[35] 罗霆, 欧阳雪庆, 杨丽涛, 李杨瑞. 15N同位素稀释法研究固氮菌接种对甘蔗生物固氮的影响. 核农学报, 2010, 24: 1026–1031

Luo T, Ou-Yang X Q, Yang L T, Li Y R. Effect of nitrogen-fixing bacteria inoculation on biological nitrogen fixation in sugarcane by 15N isotope dilution technique. J Nucl Agr Sci , 2010, 24: 1026–1031 (in Chinese with English abstract)

[36] Iniguez A L, Dong Y, Triplett E W. Nitrogen fixation in wheat provided by Klebsiella pneumonia 342. Mol Plant Microbe Interact, 2004, 17: 1078–1085