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My research interests include: Biological nitrogen fixation of field crops, Integrated nutrient management for rice, Microbial activities in lowland soils, Plant-microbe interactions, Symbiotic and endophytic diazotrophs, Soil biochemical analyses
Journal Articles
Endophytic bacteria associated with sweet potato and their interaction under coculture condition  Asis, C.A., Jr., Adachi, K., and Akao, S.
The Philippine Journal of Crop Science 30, 37-45, 2005
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GUS reporter gene in the study of bacteria and legume interaction Asis, C.A., Jr, Chebotar, V.K., Kang, U.G., and Akao, S.
Philippine Journal of Crop Science 29, 25-39, 2004
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N2-fixation in sugarcane and population of N2-fixing endophytes in stem apoplast solution Asis, C.A., Jr, Adachi, K., and Akao, S.
The Philippine Journal of Crop Science 29, 46-56, 2004
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Isolation of endophytic diazotroph Pantoea agglomerans and nondiazotroph Enterobacter asburiae from sweetpotato stem in Japan Asis, C.A. Jr. and Adachi, K.
Letters in Applied Microbiology 38, 19-23, 2004
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Occurrence of diazotrophic endophytes in different portions of sweet potato stems Adachi, K., Takahata, Y., and Asis, C.A. Jr.
Microbes and Environment 19, 40-44, 2004
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Use of microplot technique to evaluate the effect of herbicide and organic fertilizer on dehydrogenase activity in lowland rice soil Asis, C.A. Jr., Corales, R.G., Sajor, J.T., Joshi, R.C., De la Cruz, M.C., and Tadeo, B.D.
Internation Rice Research Notes 28, 66-67, 2003
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Organic acid and sugar contents in sugarcane stem apoplast solution and their role as carbon source for endophytic diazotrophs Asis, C.A. Jr., Shimizu, T., Khan, M.K., and Akao, S.
Soil Science and Plant Nutrition 49, 915-920, 2003
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Population of diazotrophic endophytes in stem apoplast solution of sugarcane and related grass species in Tanegashima, Japan Asis, C.A. Jr., Adachi, K., Sugimoto, A., Ujihara, K., Terajima, Y., and Fukuhara, S.
Microbes and Environments 18, 133-137, 2003
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Estimation of the nitrogen fixation by sugarcane cultivar NiF-8 using 15N dilution and natural 15N abundance techniques Asis, C.A. Jr., Kubota, M., Ohta, H., Arima Y., Ohwaki, Y., Yoneyama, T., Tsuchiya, K., Hayashi, N., Nakanishi, Y., and Akao S.
Soil Science and Plant Nutrition 48, 283-285, 2002
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Production of growth promoting substances and high colonization ability of rhizobacteria enhance the nitrogen fixtion of soyben when coinoculated with Bradyrhizobium japonicum Chebotar, V.K., Asis, C.A. Jr., and Akao, S.
Biology and Fertility of Soils 34, 427-432, 2001
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Conferences
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Diazotrophic and nondiazotrophic endophytes in sweetpotato stems and their interaction under coculture conditions
Asis, C.A. Jr. and Adachi, K.
Annual meeting of the Japanese society of soil science and plant nutrition, Meiji University, Ikuta, Kanagawa, Japan, August 20-22, 2003
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Endophytic bacteria associated with the stem of sweetpotato and enhancement of nitrogen fixation of diazotrophs by coculture with nonnitrogen-fixing isolate (Poster)
Asis, C.A. Jr. and Adachi, K.
International workshop on microbial function in revegetation process of degraded terrestrial environments: from gene to ecosystem, Yayoi Auditorium, University of Tokyo, November 29, 2002
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Population of nitrogen-fixing bacteria in the apoplast of wildtype, cultivated, and relative grass species of sugarcane in Tanegashima island (Poster)
Asis, C.A. Jr., Adachi, K., Sugimoto, A., Ujihara, K., Terajima, Y., and Fukuhara, S.
Annual meeting of the Japanese society of plant-microbe interaction, Kasuza DNA Research, Chiba, Japan, September 18-21, 2002
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Endophytic bacteria associated with the stem of sweet potato and enhancement of nitrogen fixation of diazotrophs by coculture with nonnitrogen-fixing isolate
Asis, C.A. Jr. and Adachi, K.
Annual meeting of the Japanese society of plant-microbe interaction, Kasuza DNA Research, Chiba, Japan, September 18-21, 2002
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Converting biomass wastes into organic fertilizer using microbial inoculant (Poster)
Corales, R.C., Asis, C.A. Jr., Tadeo, B.D., Troung, H.X., Ramos, P.S., Cordero, J.C., and Orphilla, D.L.
24th National Academy of Science and Technology Annual Scientific Meeting, Manila Hotel, July 10-12, 2002
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Organic acid and sugar components of sugarcane stalks and their role as carbon source for endophytic diazotrophs
Asis, C.A. Jr., Khan, M.K., Kubota, M., Ohta, H., Arima, Y., Nakanishi, Y., Hayashi N., Tsuchiya, K., and Akao, S.
Annual meeting of the Japanese society of plant-microbe interactions, World Convention Center Summit, Miyazaki City, Miyazaki, Japan, October 11-13, 2001
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Characterization of the nitrogen-fixing endophytic bacteria and behavior of GFP-marked isolates in sugarcane
Asis, C.A. Jr., Chebotar, V.K., Kubota, M., Ohta, H., Arima, Y., Tsuchiya, K., and Akao, S.
Annual meeting of the Japanese society of plant-microbe interactions, Tohoku University, Sendai, Japan, October 1-11,2000
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Exploration of the nitrogen-fixing endophytic bacteria associated with sugarcane
Asis, C.A. Jr., Chebotar, V.K., Kubota, M., Ohta, H., Arima, Y., Tsuchiya, K., and Akao, S.
Annual meeting of the Japanese society of soil science and plant nutrition, University of Tokyo, April 2-4, 2000
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Estimation of the biological nitrogen fixation of sugarcane
Asis, C.A. Jr., Chebotar, V.K., Kubota, M., Ohta, H., Arima, Y., Tsuchiya, K., and Akao, S
Annual meeting of the Japanese society of plant-microbe interactions, Kansai Seminar House, Kyoto, Japan, October 21-22, 1999
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Carbon source utilization of the nitrogen-fixing bacteria from sugarcane juice using BIOLOG system
Asis, C.A. Jr., Chebotar, V.K., Kubota, M., Ohta, H., Arima, Y., Tsuchiya, K., and Akao, S
Annual meeting of the Japanese society of plant-microbe interactions, Kansai Seminar House, Kyoto, Japan, October 21-22, 1999
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Dr. Constancio Asis, Jr
joined July 15, 2003
20 journals, 16 conferences, 10 societies, 9 awards
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