Cell Specific Expression of Nadh-Dependent Glutamate Synthase in Rice Plants

Author(s):  
Keiki Ishiyama ◽  
Soichi Kojima ◽  
Toshihiko Hayakawa ◽  
Tomoyuki Yamaya
2003 ◽  
Vol 20 (1) ◽  
pp. 43-55 ◽  
Author(s):  
Toshihiko HAYAKAWA ◽  
Takahiro SAKAI ◽  
Keiki ISHIYAMA ◽  
Naoya HIROSE ◽  
Hiroyuki NAKAJIMA ◽  
...  

Planta ◽  
1994 ◽  
Vol 193 (3) ◽  
Author(s):  
Toshihiko Hayakawa ◽  
Teiji Nakamura ◽  
Fuyu Hattori ◽  
Tadahiko Mae ◽  
Kunihiko Ojima ◽  
...  

1989 ◽  
Vol 220 (1) ◽  
pp. 12-16 ◽  
Author(s):  
Rikyu Matsuki ◽  
Haruko Onodera ◽  
Taeko Yamauchi ◽  
Hirofumi Uchimiya

2012 ◽  
Vol 69 (1) ◽  
pp. 135-141 ◽  
Author(s):  
Yongbin Qi ◽  
Lei Chen ◽  
Xiuling He ◽  
Qingsheng Jin ◽  
Xiaoming Zhang ◽  
...  

2000 ◽  
Vol 27 (9) ◽  
pp. 787 ◽  
Author(s):  
Soichi Kojima ◽  
Michiko Kimura ◽  
Yukine Nozaki ◽  
Tomoyuki Yamaya

This paper originates from a presentation at the International Conference on Assimilate Transport and Partitioning, Newcastle, NSW, August 1999 The entire 3.7 kbp 5´-upstream region (–2840 to +886) from the translational start codon of NADH–glutamate synthase (NADH–GOGAT, EC 1.4.1.14) gene from rice (Oryza sativa L.) or the region sequentially deleted from the 5´-end was fused with the β−glucuronidase (GUS) reporter gene. The chimeric gene was introduced into calli derived from rice scutellum via Agrobacterium tumefaciens-mediated transformation and tissue-specific GUS activity determined in T0 generations. When the entire region was fused, GUS activity was detected in vascular bundles of the developing leaf blade and in dorsal and lateral vascular bundles of developing grains. This corresponds with our previous immunodetection of NADH–GOGAT protein (Hayakawa et al., Planta 193, 455–460, 1994). A series of deletion experiments showed that a 149-nucleotide region between –142 and +7 was essential for promoter activity in the NADH–GOGAT gene.


1999 ◽  
Vol 119 (2) ◽  
pp. 409-416 ◽  
Author(s):  
Toshihiko Hayakawa ◽  
Laura Hopkins ◽  
Lucy J. Peat ◽  
Tomoyuki Yamaya ◽  
Alyson K. Tobin

2021 ◽  
Vol 7 (1) ◽  
pp. 25-31
Author(s):  
Tri Handoyo ◽  
Laily Ilman Widuri ◽  
Didik Pudji Restanto

Nitrogen (N) is an important nutrient for the growth and development of rice plants, required in large quantity and often limiting factor of rice yields. The research was to understand the different sources and levels of nitrogen in rice plant on the activity of N assimilation enzymes, including nitrate reductase (NR), glutamine synthase (GS) content, glutamate synthase (Gogat) content, content, ammonium (NH4+) and nitrate (NO3-) content on the leaves. Paddy (Ciherang variety) was grown in sand media containing Hoagland solution with different sources (ammonium and nitrate) and levels (0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 mM) of nitrogen. Nitrogen assimilation was observed from leaves at one month of age. The NR activity increased on both Nitrogen sources, it was a higher activity in media contained nitrate. Also, the activity of GS showed higher in media contains nitrate, but its activity was decreased after application 1.6 mM of nitrate and 3.2 mM of ammonium. Western blot analysis of GS1 and GS2 showed that the band pattern of protein was similar to these enzyme activities. Nitrate content in leaves gradually increased in both sources of nitrogen and higher than 3.2 mM ammonium application caused an increase in ammonium content in leaves, but the nitrate content decreased. This research resulted that the available source of N for rice was in nitrate form, easily by the rice plants during the growth stage.


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