Developmental genetics of internodal elongation in floating rice

Author(s):  
T. Jishi ◽  
Y. Sano
1995 ◽  
Vol 146 (3) ◽  
pp. 323-328 ◽  
Author(s):  
Tetsushi Azuma ◽  
Tatsuya Hirano ◽  
Yukiko Deki ◽  
Naotsugu Uchida ◽  
Takeshi Yasuda ◽  
...  

1991 ◽  
Vol 32 (2) ◽  
pp. 307-309 ◽  
Author(s):  
Tetsushi Azuma ◽  
Fumiko Mihara ◽  
Naotsugu Uchida ◽  
Takeshi Yasuda ◽  
Tadashi Yamaguchi

2003 ◽  
Vol 160 (9) ◽  
pp. 1125-1128 ◽  
Author(s):  
Tetsushi Azuma ◽  
Tomoko Hatanaka ◽  
Naotsugu Uchida ◽  
Takeshi Yasuda

2021 ◽  
Vol 13 (15) ◽  
pp. 8354
Author(s):  
Vo Hong Tu ◽  
Steven W. Kopp ◽  
Nguyen Thuy Trang ◽  
Andreas Kontoleon ◽  
Mitsuyasu Yabe

Vietnam plays an important role in bearing global food security. However, Vietnamese rice farmers face several challenges, including pressures to develop sustainable livelihoods while reducing the environmental impacts of their production activities. Various Vietnamese agricultural restructuring policies were promulgated to promote the adoption of environmentally friendly practices to generate high value added for rice farmers, but the farmers are reluctant to adopt them because of perceived lack of demand. Decreasing consumption of rice in Asia and increasing demands in Europe shaped Vietnamese rice exporting policies. New trade agreements, such as the UK–Vietnam Free Trade Agreement, offer new target markets for Vietnamese rice farmers. This research provides empirical evidence related to the preferences of UK consumers for ethical attributes for floating rice imported from Vietnam. Floating rice represents a traditional method of rice cultivation that relies on the natural flooding cycle. Its cultivation uses very few agrochemical inputs and provides several other environmental, economic, and social benefits. In an online survey, the study used a choice experiment that asked 306 UK consumers to report their preferences for one kilo of floating rice with three non-market attributes: reduction in carbon dioxide emissions, allocation of profits to the farmers, and restitution of biodiversity. Overall, study participants favored the attributes of floating rice, but reported utility for only the “fair trade” attribute and for a marginal willingness to pay premiums for profit allocations to farmers. Consumers did not find value in either CO2 emission reduction or biodiversity improvement. Results from the study provide recommendations to develop agricultural programs, distribution strategies, and informational methods to encourage floating rice consumption in the UK.


1977 ◽  
Vol 29 (1) ◽  
pp. 55-63 ◽  
Author(s):  
R. T. M. Poulter ◽  
N. K. Honey

SUMMARYThe homothallic amoebal clones of Physarum polycephalum are of potential use in understanding the developmental genetics of this organism. Such an application requires that complementation and recombination analysis be possible between pairs of homothallic clones. This paper is a report of the formation of mixed plasmodia by pairs of homothallic amoebal clones. In order to detect such mixed plasmodia use was made of two marker genes involved in plasmodial fusion, fusA and fusB. Sporulation of a mixed plasmodium formed from two homothallic (delayed) amoebal clones yielded progeny amoebae which were genetically recombinant. It is deduced from the ratios of various genotypes in these progeny clones that the mixed plasmodium was diploid and that meiosis was associated with sporulation. There is therefore no impediment to the use of the homothallic strains for genetical analysis. The progeny amoebal clones were observed to be showing segregation for the characters homothallic (rapid) and homothallic (delayed). This observation, taken together with other related observations, suggests that the homothallic (delayed) character is produced by mutation of the homothallic (rapid) character. The rare plasmodia formed by a homothallic (delayed) amoebal clone are the result of reversion of this mutation. Amoebal clones of the homothallic (delayed) type are therefore developmental mutants unable to perform the differentiation from amoeba to plasmodium.


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