Mitsuru Osaki

Details der Publikationsliste

Zeitraum

2001 - 2009

Anzahl

56

Co-Autoren

Rice Root Growth with Increasing in Plant Hormone and Allantoin by Inosine in Nutrient Solution (2009)

Tokuhisa, Dai, Okazaki, Keiki, Shinano, Takuro, Watanabe, Toshihiro, Yokoi, Daisuke, Osaki, Mitsuru

XVI International Plant Nutrition Colloquium, Plant Nutrition for Sustainable Development and Global Health. 26-30 August 2009. Sacramento, California, USA.

Possible Reasons Why Aluminum is a Beneficial Element for Melastoma malabathricum, an Aluminum Accumulator (2009)

Watanabe, Toshihiro, Osaki, Mitsuru

Melastoma malabathricum is an aluminum (Al) accumulator woody species growing in tropical acid sulfate soils, and highly tolerant to Al stress. On the contrary, its growth is often enhanced by Al...

Rice Root Growth with Increasing in Plant Hormone and Allantoin by Inosine in Nutrient Solution (2009)

Tokuhisa, Dai, Okazaki, Keiki, Shinano, Takuro, Watanabe, Toshihiro, Yokoi, Daisuke, Osaki, Mitsuru

The presence of low concentration of inosine in solution in soil has increased the root growth as shown in our previous work. Thus the aim of this work was to clear the mechanism of the...

Difference in Acquisition of Soil Organic Nitrogen between Pak-Choi and Tomato (2009)

Watanabe, Toshihiro, Enomoto, Takumi, Okamoto, Miwa, Sakurai, Michihiko, Shinano, Takuro, Osaki, Mitsuru

This study was to elucidate the factors contributing to organic nitrogen (N) acquisition in different plant species, pak-choi (Brassica rapa L. var. chinensis) and tomato (Solanum lycopersicum L.)....

Role of Thiol Compounds in Arsenic Tolerance in Pteris vittata (2009)

Watanabe, Toshihiro, Sakai, Yuki, Senoura, Takeshi, Hiradate, Syuntaro, Wasaki, Jun, Osaki, Mitsuru

It has been suggested that thiol compounds such as glutathione (GSH) and phytochelatin (PC) contribute to arsenic (As) tolerance mechanisms in higher plant. In contrast, the role of thiol compounds...

Decrease of Cadmium Accumulation in Crops by Zero-valent Iron (2009)

Watanabe, Toshihiro, Nakamura, Takashi, Murata, Yasutoshi, Sakai, Yuki, Osaki, Mitsuru

Cadmium (Cd) contamination in soils is a serious problem for crop production in the world. Zero-valent iron (Fe(0)) is a reactive material with reducing power capable of stabilizing toxic elements,...

Suppression of clubroot disease under neutral pH caused by inhibition of spore germination of Plasmodiophora brassicae in the rhizosphere (2008)

Niwa, Reiko, Nomura, Yoshinobu, Osaki, Mitsuru, Ezawa, Tatsuhiro

To elucidate the mechanism of clubroot suppression under neutral soil pH, a highly reproducible germination assay system under soil culture conditions was designed based on the hypothesis that...

Differences in the Metabolite Profiles of Spinach (Spinacia oleracea L.) Leaf in Different Concentrations of Nitrate in the Culture Solution (2008)

Okazaki, Keiki, Oka, Norikuni, Shinano, Takuro, Osaki, Mitsuru, Takebe, Masako

The nitrogen (N) status of a plant determines the composition of its major components (amino acids, proteins, carbohydrates and organic acids) and, directly or indirectly, affects the quality of...

Sugar signalling mediates cluster root formation and phosphorus starvation-induced gene expression in white lupin (2008)

Zhou, Keqin, Yamagishi, Masumi, Osaki, Mitsuru, Masuda, Kiyoshi

Cluster root (CR) formation contributes much to the adaptation to phosphorus (P) deficiency. CR formation by white lupin (Lupinus albus L.) is affected by the P-limiting level in shoots, but not in...

Sequencing and Analysis of Approximately 40 000 Soybean cDNA Clones from a Full-Length-Enriched cDNA Library (2008)

Umezawa, Taishi, Sakurai, Tetsuya, Totoki, Yasushi, Toyoda, Atsushi, Seki, Motoaki, Ishiwata, Atsushi, ...

A large collection of full-length cDNAs is essential for the correct annotation of genomic sequences and for the functional analysis of genes and their products. We obtained a total of 39 936 soybean...

peatland (2007)

Melling Lulie, Ryusuke Hatano, Mitsuru Osaki

Sustainable agriculture development on tropical

Metabolite profiling and assessment of metabolome compartmentation of soybean leaves using non-aqueous fractionation and GC-MS analysis (2007)

Benkeblia, Noureddine, Shinano, Takuro, Osaki, Mitsuru

In the present study, non-aqueous fractionation (NAQF) and GC-MS were used to obtain a spatially resolved view of metabolism in mature leaves of soybean (Glycine max Merr.). NAQF of lyophilized...

Metabolic alterations proposed by proteome in rice roots grown under low P and high Al concentration under low pH (2007)

Fukuda, Takuya, Saito, Akira, Wasaki, Jun, Shinano, Takuro, Osaki, Mitsuru

Growth inhibition caused by acid soils, especially due to P deficiency and Al stress, is a serious problem for crop production. To comprehend the adaptation mechanisms of rice plants to P deficiency...

Metabolic alterations proposed by proteome in rice roots grown under low P and high Al concentration under low pH (2007)

Fukuda, Takuya, Saito, Akira, Wasaki, Jun, Shinano, Takuro, Osaki, Mitsuru

Growth inhibition caused by acid soils, especially due to P deficiency and Al stress, is a serious problem for crop production. To comprehend the adaptation mechanisms of rice plants to P deficiency...

Screening of rhizobacteria from dipterocarp seedlings and saplings for the promotion of early growth of Shorea selanica seedlings (2007)

Sitepu, Irnayuli R., Ogita, Noriko, Osaki, Mitsuru, Santoso, Erdy, Tahara, Satoshi, ...

Low-cost forest management using highly effective microorganisms to promote seedling and tree growth is an important issue in reforestation in Indonesia and other tropical rain forest zones. To...

Increase in soil pH due to Ca-rich organic matter application causes suppression of the clubroot disease of crucifers (2007)

Niwa, Rieko, Kumei, Toshiaki, Nomura, Yoshinobu, Yoshida, Shigekata, Osaki, Mitsuru, Ezawa, Tatsuhiro

Clubroot disease of cruciferous plants caused by the soil-borne pathogen Plasmodiophora brassicae is difficult to control because the pathogen survives for a long time in soil as resting spores....

Increase in soil pH due to Ca-rich organic matter application causes suppression of the clubroot disease of crucifers (2007)

Niwa, Rieko, Kumei, Toshiaki, Nomura, Yoshinobu, Yoshida, Shigekata, Osaki, Mitsuru, Ezawa, Tatsuhiro

Clubroot disease of cruciferous plants caused by the soil-borne pathogen Plasmodiophora brassicae is difficult to control because the pathogen survives for a long time in soil as resting spores....

Screening of phosphate-solubilizing microorganisms in rhizosphere and rhizoplane of adverse soil-adapting plants in Southern Thailand (2007)

Pengnoo, Ashara, Hashidoko, Yasuyuki, Onthong, Jumpen, Gimsanguan, Sayjai, Sae-ong, Manoon, Shinano, Takuro, ...

Various adverse soils; peat, podzolic sandy, acid sulfate and salted-affected acid sulfate soils were widely distributed throughout Southern Thailand. These soils were infertile and strongly acidic....

Effecf of pH and some cations on activity of acid phosphatase secreted from Ustilago sp. isolated from acid sulphate soil (2007)

Jumpen Onthong, Sayjai Gimsanguan, Ashara Pengnoo, Chairatana Nilnond, Mitsuru Osaki

Acid phosphatase secreted from Ustilago sp. is able to hydrolyze organic phosphorus. These soil yeast microorganisms were isolated from rice roots grown in acid sulphate soil that generally contains...

Characterization and ecological role of free-living nitrogen-fixing bacteria isolated from the rhizoplane of Melastoma malabathricum inhabiting acidic plain lands in Kalimantan (2006)

Hashidoko, Yasuyuki, Gotou, Yukako, Osaki, Mitsuru, Purnomo, Erry, Suwido, Limin H., Tahara, Satoshi

The rhizoplane microorganisms of Melastoma malabathricum, distributing throughout the acid sulfate and peat soils of South Kalimantan, Indonesia, were investigated, using a soft gel media of N-free...

Frequent isolation of sphingomonads from local rice varieties and other weeds grown on acid sulfate soil in South Kalimantan, Indonesia (2006)

Hashidoko, Yasuyuki, Hayashi, Hiroki, Hasegawa, Toshihiro, Purnomo, Erry, Osaki, Mitsuru, Tahara, Satoshi

We preliminarily investigated the correlation between productivity and the diversity of free-living nitrogen-fixing bacteria on the rhizoplane of local rice varieties, including Siam Unus, Siam Adil...

Soil nitrogen supply and nitrogen uptake for local rice grown in unfertilized acid sulfate soil in South Kalimantan (2006)

Purnomo, Erry, Hasegawa, Toshihiro, Hashidoko, Yasuyuki, Osaki, Mitsuru

Most of acid sulfate soil areas in South Kalimantan are recommended for growing rice. Due to unfavourable soil conditions such as low pH and unpredictable water level, farmers grow local rice...

Ethnobotanical study and nutrient potency of local traditional vegetables in Central Kalimantan (2006)

Irawan, Daisy, Wijaya, C. Hanny, Limin, Suwido H., Hashidoko, Yasuyuki, Osaki, Mitsuru, Kulu, Ici P

The Dayak people in Central Kalimantan, traditionally consumed local vegetable, either collected from the wild or traditionally cultivated. Unfortunately, many of the traditional vegetables are...

Effect of panicle removal on cytokinin level in the xylem and nitrogen uptake activity of rice (2006)

SHINANO, Takuro, OSAWA, Motonari, SOEJIMA, Hiroshi, OSAKI, MITSURU

To evaluate the role of cytokinin in the source–sink relationship, panicles of rice were cut from the stem at the panicle emergence stage. Xylem sap exudates were collected using the stem cut...

Effect of panicle removal on cytokinin level in the xylem and nitrogen uptake activity of rice (2006)

SHINANO, Takuro, OSAWA, Motonari, SOEJIMA, Hiroshi, OSAKI, MITSURU

To evaluate the role of cytokinin in the source–sink relationship, panicles of rice were cut from the stem at the panicle emergence stage. Xylem sap exudates were collected using the stem cut...

Role of Phospho enol pyruvate Carboxylase in the Adaptation of a Tropical Forage Grass to Low-Phosphorus Acid Soils (2006)

Begum, Hasna Hena, Osaki, Mitsuru, Nanamori, Masahito, Watanabe, Toshihiro, Shinano, Takuro, Rao, Idupulapati M.

As Brachiaria hybrid cv. 'Mulato' has adapted to acid soils with extremely low phosphorus (P) contents, its low-P-tolerance mechanisms were investigated and compared with those of wheat (Triticum...

Role of Phospho enol pyruvate Carboxylase in the Adaptation of a Tropical Forage Grass to Low-Phosphorus Acid Soils (2006)

Begum, Hasna Hena, Osaki, Mitsuru, Nanamori, Masahito, Watanabe, Toshihiro, Shinano, Takuro, Rao, Idupulapati M.

As Brachiaria hybrid cv. 'Mulato' has adapted to acid soils with extremely low phosphorus (P) contents, its low-P-tolerance mechanisms were investigated and compared with those of wheat (Triticum...

Developmental regulation of photosynthate distribution in leaves of rice (2006)

SHINANO, TAKURO, NAKAJIMA, KANTO, WASAKI, JUN, MORI, HARUHIDE, ZHENG, TEI, OSAKI, MITSURU, ...

mRNA expression patterns of genes for metabolic key enzymes sucrose phosphate synthase (SPS), phosphoenolpyruvate carboxylase (PEPC), pyruvate kinase, ribulose 1,5-bisphosphate carboxylase/oxygenase,...

Developmental regulation of photosynthate distribution in leaves of rice (2006)

SHINANO, TAKURO, NAKAJIMA, KANTO, WASAKI, JUN, MORI, HARUHIDE, ZHENG, TEI, OSAKI, MITSURU

mRNA expression patterns of genes for metabolic key enzymes sucrose phosphate synthase (SPS), phosphoenolpyruvate carboxylase (PEPC), pyruvate kinase, ribulose 1,5-bisphosphate carboxylase/oxygenase,...

Transcriptomic analysis indicates putative metabolic changes caused by manipulation of phosphorus availability in rice leaves (2006)

Wasaki, Jun, Shinano, Takuro, Onishi, Kazuki, Yonetani, Ryoma, Yazaki, Junshi, Fujii, Fumiko, ...

Plants have developed several strategies for coping with phosphorus (P) deficiency. However, the details of the regulation of gene expression of adaptations to low P are still unclear. Using a cDNA...

Transcriptomic analysis indicates putative metabolic changes caused by manipulation of phosphorus availability in rice leaves (2006)

Wasaki, Jun, Shinano, Takuro, Onishi, Kazuki, Yonetani, Ryoma, Yazaki, Junshi, Fujii, Fumiko, ...

Plants have developed several strategies for coping with phosphorus (P) deficiency. However, the details of the regulation of gene expression of adaptations to low P are still unclear. Using a cDNA...

Transcriptomic analysis indicates putative metabolic changes caused by manipulation of phosphorus availability in rice leaves (2006)

Wasaki, Jun, Shinano, Takuro, Onishi, Kazuki, Yonetani, Ryoma, Yazaki, Junshi, Fujii, Fumiko, ...

Plants have developed several strategies for coping with phosphorus (P) deficiency. However, the details of the regulation of gene expression of adaptations to low P are still unclear. Using a cDNA...

EFEITO DO ALUMÍNIO NO DESENVOLVIMENTO E NUTRIÇÃO DE Tapirira guianensis AUBLET EM SOLUÇÃO HIDROPÔNICA (2005)

Carlos Bruno Reissmann, Toshihiro Watanabe, Mitsuru Osaki

Objetivando-se testar Tapirira guianensis, espécie de ampla distribuição na América do Sul, frente a níveis crescentes de Al (0, 0,5 mM, 1,0 mM, 2,0 mM, 4,0 mM e 6,0 mM), foi realizado...

Difference in Carbon Distribution of Initial Photoassimilates between Soybean and Rice as Revealed by 20 s Pulse-300 s Chase Experiments (2005)

Okazaki, Keiki, Shinano, Takuro, Osaki, Mitsuru

Short pulse-chase labeling experiments indicated that there was a considerable difference between soybean and rice in the distribution pattern of 14C to major metabolites during a 300 s chase period....

Difference in Carbon Distribution of Initial Photoassimilates between Soybean and Rice as Revealed by 20 s Pulse-300 s Chase Experiments (2005)

Okazaki, Keiki, Shinano, Takuro, Osaki, Mitsuru

Short pulse-chase labeling experiments indicated that there was a considerable difference between soybean and rice in the distribution pattern of 14C to major metabolites during a 300 s chase period....

Difference in Carbon Distribution of Initial Photoassimilates between Soybean and Rice as Revealed by 20 s Pulse-300 s Chase Experiments (2005)

Okazaki, Keiki, Shinano, Takuro, Osaki, Mitsuru

Short pulse-chase labeling experiments indicated that there was a considerable difference between soybean and rice in the distribution pattern of 14C to major metabolites during a 300 s chase period....

Plant growth promotion abilities and microscale bacterial dynamics in the rhizosphere of Lupin analysed by phytate utilization ability (2005)

Unno, Yusuke, Okubo, Kenzo, Wasaki, Jun, Shinano, Takuro, Osaki, Mitsuru, 信濃, 卓郎

In the rhizosphere, phosphorus (P) levels are low due to P uptake into the roots. Rhizobacteria live on carbon (C) exuded from roots, and may contribute to plant nutrition by liberating P from...

Plant growth promotion abilities and microscale bacterial dynamics in the rhizosphere of Lupin analysed by phytate utilization ability (2005)

Unno, Yusuke, Okubo, Kenzo, Wasaki, Jun, Shinano, Takuro, Osaki, Mitsuru

In the rhizosphere, phosphorus (P) levels are low due to P uptake into the roots. Rhizobacteria live on carbon (C) exuded from roots, and may contribute to plant nutrition by liberating P from...

Plant growth promotion abilities and microscale bacterial dynamics in the rhizosphere of Lupin analysed by phytate utilization ability (2005)

Unno, Yusuke, Okubo, Kenzo, Wasaki, Jun, Shinano, Takuro, Osaki, Mitsuru

In the rhizosphere, phosphorus (P) levels are low due to P uptake into the roots. Rhizobacteria live on carbon (C) exuded from roots, and may contribute to plant nutrition by liberating P from...

Neutral rhizoplane pH of local rice and some predominant tree species in South and Central Kalimantans : a possible strategy of plant adaptation to acidic-soil (2005)

Hashidoko, Yasuyuki, Hasegawa, Toshihiro, Purnomo, Erry, Tada, Motohiko, Limin, Suwido H., Osaki, Mitsuru, ...

To investigate the acid sulfate soil-adapting strategies of South Kalimantan local rice varieties, their rhizoplane pH was preliminarily examined using a glass-made micro-electrode. Although raw...

Developmental regulation of photosynthate distribution in leaves of rice (2005)

SHINANO, TAKURO, NAKAJIMA, KANTO, WASAKI, JUN, MORI, HARUHIDE, ZHENG, TEI, OSAKI, MITSURU

mRNA expression patterns of genes for metabolic key enzymes sucrose phosphate synthase (SPS), phosphoenolpyruvate carboxylase (PEPC), pyruvate kinase, ribulose 1,5-bisphosphate carboxylase/oxygenase,...

Endogenous hormones and expression of senescence-related genes in different senescent types of maize (2005)

He, Ping, Osaki, Mitsuru, Takebe, Masako, Shinano, Takuro, Wasaki, Jun

Levels of cytokinins and abscisic acid (ABA) and the expression of senescence-related genes were investigated in two maize (Zea mays L.) cultivars of different senescence type, cv. P3845 (stay-green)...

Endogenous hormones and expression of senescence-related genes in different senescent types of maize (2005)

He, Ping, Osaki, Mitsuru, Takebe, Masako, Shinano, Takuro, Wasaki, Jun

Levels of cytokinins and abscisic acid (ABA) and the expression of senescence-related genes were investigated in two maize (Zea mays L.) cultivars of different senescence type, cv. P3845 (stay-green)...

Endogenous hormones and expression of senescence-related genes in different senescent types of maize (2005)

He, Ping, Osaki, Mitsuru, Takebe, Masako, Shinano, Takuro, Wasaki, Jun

Levels of cytokinins and abscisic acid (ABA) and the expression of senescence-related genes were investigated in two maize (Zea mays L.) cultivars of different senescence type, cv. P3845 (stay-green)...

Low Phosphorus Tolerance Mechanisms: Phosphorus Recycling and Photosynthate Partitioning in the Tropical Forage Grass, Brachiaria Hybrid cultivar Mulato Compared with Rice (2004)

Nanamori, Masahiko, Shinano, Takuro, Wasaki, Jun, Yamamura, Takuya, Rao, Idupulapati M., Osaki, Mitsuru, ...

This is a pre-copy editing, author-produced PDF of an article accepted for publication in "Plant and Cell Physiology" following peer review. The definitive publisher-authenticated version is...

Low Phosphorus Tolerance Mechanisms: Phosphorus Recycling and Photosynthate Partitioning in the Tropical Forage Grass, Brachiaria Hybrid cultivar Mulato Compared with Rice (2004)

Nanamori, Masahiko, Shinano, Takuro, Wasaki, Jun, Yamamura, Takuya, Rao, Idupulapati M., Osaki, Mitsuru

The Brachiaria hybrid cv. Mulato is well adapted to low-fertility acid soils deficient in phosphorus (P). To study the grassy forage's mechanisms for tolerating low P supply, we compared it with rice...

Low Phosphorus Tolerance Mechanisms: Phosphorus Recycling and Photosynthate Partitioning in the Tropical Forage Grass, Brachiaria Hybrid cultivar Mulato Compared with Rice (2004)

Nanamori, Masahiko, Shinano, Takuro, Wasaki, Jun, Yamamura, Takuya, Rao, Idupulapati M., Osaki, Mitsuru

The Brachiaria hybrid cv. Mulato is well adapted to low-fertility acid soils deficient in phosphorus (P). To study the grassy forage's mechanisms for tolerating low P supply, we compared it with rice...

Low Phosphorus Tolerance Mechanisms: Phosphorus Recycling and Photosynthate Partitioning in the Tropical Forage Grass, Brachiaria Hybrid Cultivar Mulato Compared with Rice (2004)

Nanamori, Masahito, Shinano, Takuro, Wasaki, Jun, Yamamura, Takuya, Rao, Idupulapati M., Osaki, Mitsuru

The Brachiaria hybrid cv. Mulato is well adapted to low-fertility acid soils deficient in phosphorus (P). To study the grassy forage’s mechanisms for tolerating low P supply, we compared it with...

Soft gel medium solidified with gellan gum for preliminary screening for root-associating, free-living nitrogen-fixing bacteria inhabiting the rhizoplane of plants (2002)

Hashidoko, Yasuyuki, Tada, Motohiko, Osaki, Mitsuru, Tahara, Satoshi

For preliminary screening for and characterization of free-living nitrogen-fixing bacteria from rhizoplane microflora, we used Winogradsky's mineral mixture-based nitrogen-free medium solidified with...

Soft gel medium solidified with gellan gum for preliminary screening for root-associating, free-living nitrogen-fixing bacteria inhabiting the rhizoplane of plants. (2002)

Hashidoko, Yasuyuki, Tada, Motohiko, Osaki, Mitsuru, Tahara, Satoshi

For preliminary screening for and characterization of free-living nitrogen-fixing bacteria from rhizoplane microflora, we used Winogradsky's mineral mixture-based nitrogen-free medium solidified with...

Soft gel medium solidified with gellan gum for preliminary screening for root-associating, free-living nitrogen-fixing bacteria inhabiting the rhizoplane of plants. (2002)

Hashidoko, Yasuyuki, Tada, Motohiko, Osaki, Mitsuru, Tahara, Satoshi

For preliminary screening for and characterization of free-living nitrogen-fixing bacteria from rhizoplane microflora, we used Winogradsky's mineral mixture-based nitrogen-free medium solidified with...

Sugar signalling mediates cluster root formation and phosphorus starvation-induced gene expression in white lupin

Zhou, Keqin, Yamagishi, Masumi, Osaki, Mitsuru, Masuda, Kiyoshi

Cluster root (CR) formation contributes much to the adaptation to phosphorus (P) deficiency. CR formation by white lupin (Lupinus albus L.) is affected by the P-limiting level in shoots, but not in...

Sequencing and Analysis of Approximately 40 000 Soybean cDNA Clones from a Full-Length-Enriched cDNA Library

Umezawa, Taishi, Sakurai, Tetsuya, Totoki, Yasushi, Toyoda, Atsushi, Seki, Motoaki, Ishiwata, Atsushi, ...

A large collection of full-length cDNAs is essential for the correct annotation of genomic sequences and for the functional analysis of genes and their products. We obtained a total of 39 936 soybean...

Root mucilage enhances aluminum accumulation in Melastoma malabathricum, an aluminum accumulator

Watanabe, Toshihiro, Misawa, Seiji, Hiradate, Syuntaro, Osaki, Mitsuru

Root mucilage is gelatinous polysaccharide-containing material exuded from the outer layers of the root cap. Although mucilage has been suggested to play several roles in plant growth, its role in...