A New Method for Parametric Imaging of Photosynthesis with C-11 Carbon Dioxide and Positron Emitting Tracer Imaging System (PETIS)

2006 ◽  
Author(s):  
Naoki Kawachi ◽  
Shu Fujimaki ◽  
Satomi Ishii ◽  
Nobuo Suzui ◽  
Noriko S. Ishioka ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Imaging System ◽  
New Method ◽  
Parametric Imaging ◽  
Tracer Imaging

Kinetic Analysis of Carbon-11-Labeled Carbon Dioxide for Studying Photosynthesis in a Leaf Using Positron Emitting Tracer Imaging System

2006 ◽  
Vol 53 (5) ◽  
pp. 2991-2997 ◽  
Author(s):  
N. Kawachi ◽  
K. Sakamoto ◽  
S. Ishii ◽  
S. Fujimaki ◽  
N. Suzui ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Kinetic Analysis ◽  
Imaging System ◽  
Tracer Imaging

scholarly journals New evidence of arsenic translocation and accumulation in Pteris vittata from real-time imaging using positron-emitting 74As tracer

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yi Huang-Takeshi Kohda ◽  
Zhaojie Qian ◽  
Mei-Fang Chien ◽  
Keisuke Miyauchi ◽  
Ginro Endo ◽  
...  
Keyword(s):  
Imaging System ◽  
Pteris Vittata ◽  
Long Distance ◽  
Long Distance Transport ◽  
Hydroponic Cultivation ◽  
Tracer Imaging ◽  
Serial Images ◽  
First Time ◽  
New Evidence ◽  
Hyperaccumulator Plant

AbstractPteris vittata is an arsenic (As) hyperaccumulator plant that accumulates a large amount of As into fronds and rhizomes (around 16,000 mg/kg in both after 16 weeks hydroponic cultivation with 30 mg/L arsenate). However, the sequence of long-distance transport of As in this hyperaccumulator plant is unclear. In this study, we used a positron-emitting tracer imaging system (PETIS) for the first time to obtain noninvasive serial images of As behavior in living plants with positron-emitting 74As-labeled tracer. We found that As kept accumulating in rhizomes as in fronds of P. vittata, whereas As was retained in roots of a non-accumulator plant Arabidopsis thaliana. Autoradiograph results of As distribution in P. vittata showed that with low As exposure, As was predominantly accumulated in young fronds and the midrib and rachis of mature fronds. Under high As exposure, As accumulation shifted from young fronds to mature fronds, especially in the margin of pinna, which resulted in necrotic symptoms, turning the marginal color to gray and then brown. Our results indicated that the function of rhizomes in P. vittata was As accumulation and the regulation of As translocation to the mature fronds to protect the young fronds under high As exposure.

A new method of ICCD imaging system MRC measurement

2005 ◽  
Author(s):  
Sheng-cai Li ◽  
Wei-qi Jin ◽  
Xia Wang ◽  
Wei-qiang Zhang ◽  
Hai-yan Dong
Keyword(s):  
Imaging System ◽  
New Method

scholarly journals Real Time Visualization of 13N-Translocation in Rice under Different Environmental Conditions Using Positron Emitting Tracer Imaging System

2001 ◽  
Vol 125 (4) ◽  
pp. 1743-1753 ◽  
Author(s):  
Shoichiro Kiyomiya ◽  
Hiromi Nakanishi ◽  
Hiroshi Uchida ◽  
Atsunori Tsuji ◽  
Shingo Nishiyama ◽  
...  
Keyword(s):  
Real Time ◽  
Environmental Conditions ◽  
Imaging System ◽  
Real Time Visualization ◽  
Tracer Imaging
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