Endosperm specific expression of a gliadin-actin hybrid promoter in transgenic rice (Oryza sativa L.)

1999 ◽  
Vol 27 (3) ◽  
pp. 241-249 ◽  
Author(s):  
Ildikó Vibók ◽  
Tibor Nagy ◽  
Pedro Bittencourt ◽  
Barnabás Jenes ◽  
Géza Dallmann
2021 ◽  
Vol 12 ◽  
Author(s):  
Ning Ouyang ◽  
Xuewu Sun ◽  
Yanning Tan ◽  
Zhizhong Sun ◽  
Dong Yu ◽  
...  

Remobilization of pre-anthesis NSCs (non-structural carbohydrates) is significant for effective grain filling in rice (Oryza sativa L.). However, abundant starch particles as an important component of NSCs are still present in the leaf sheath and stem at the late stage of grain filling. There are no studies on how bioengineering techniques can be used to improve the efficiency of NSC remobilization. In this study, RAmy1A was expressed under the senescence-specific promoter of SAG12, which was designed to degrade starch in the leaf sheath and stem during grain filling. RAmy1A mRNA successfully accumulated in the leaf, stem, and sheath of transgenic plants after anthesis. At the same time, the starch and total soluble sugar content in the leaf, stem, and leaf sheath were obviously decreased during the grain-filling period. The photosynthetic rate of transgenic lines was higher than that of the wild types by an average of 4.0 and 9.9%, at 5 and 10 days after flowering, respectively. In addition, the grain-filling rate of transgenic lines was faster than that of the wild types by an average of 26.09%. These results indicate an enhanced transport efficiency of NSCs from source tissues in transgenic rice. Transgenic rice also displayed accelerated leaf senescence, which was hypothesized to contribute to decreased grain weight.


1993 ◽  
Vol 11 (S1) ◽  
pp. S123-S125 ◽  
Author(s):  
P. H. Bao ◽  
S. Castiglione ◽  
C. Giordani ◽  
W. Li ◽  
G. Wang ◽  
...  

2018 ◽  
Vol 344 ◽  
pp. 626-634 ◽  
Author(s):  
Shikha Verma ◽  
Pankaj Kumar Verma ◽  
Alok Kumar Meher ◽  
Amit Kumar Bansiwal ◽  
Rudra Deo Tripathi ◽  
...  

2012 ◽  
Vol 80 (3) ◽  
pp. 337-350 ◽  
Author(s):  
Ji Huang ◽  
Shujing Sun ◽  
Dongqing Xu ◽  
Hongxia Lan ◽  
Hui Sun ◽  
...  

Gene ◽  
2021 ◽  
Vol 768 ◽  
pp. 145278
Author(s):  
Hui Zhang ◽  
Niu Zhai ◽  
Xiang Ma ◽  
Huina Zhou ◽  
Yanchun Cui ◽  
...  

2005 ◽  
Vol 22 (1) ◽  
pp. 47-50 ◽  
Author(s):  
Hideyuki Takahashi ◽  
Yuji Hotta ◽  
Mitsunori Hayashi ◽  
Maki Kawai-Yamada ◽  
Setsuko Komatsu ◽  
...  

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.


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