Suppression of (1→3),(1→4)-β-d-Glucan Turnover during Light-Induced Inhibition of Rice Coleoptile Growth

1999 ◽  
Vol 112 (1) ◽  
pp. 7-13 ◽  
Author(s):  
Lei Chen ◽  
Seiichiro Kamisaka ◽  
Takayuki Hoson
Planta ◽  
1970 ◽  
Vol 90 (4) ◽  
pp. 333-339 ◽  
Author(s):  
Han San Ku ◽  
Hiroshi Suge ◽  
Lawrence Rappaport ◽  
Harlan K. Pratt

1993 ◽  
Vol 7 (2) ◽  
pp. 120-123 ◽  
Author(s):  
S. Kamisaka ◽  
K.-S. Tan ◽  
T. Hoson ◽  
Y. Masuda

2006 ◽  
Vol 61 (4-5) ◽  
pp. 757-768 ◽  
Author(s):  
Katrin Philippar ◽  
Kai Büchsenschütz ◽  
David Edwards ◽  
Julia Löffler ◽  
Hartwig Lüthen ◽  
...  

1979 ◽  
Vol 59 (1) ◽  
pp. 61-67 ◽  
Author(s):  
D. DAVIDSON

The percentage of barley seeds (Hordeum vulgare) with coleorhiza or roots emerged at various times after germination in different volumes of water was determined. Germination was followed in barley seeds sown on filter papers moistened with 6–25 ml of water for up to 24 h at 25 °C; 30 seeds were sown on each 15-cm diameter petri plate. The most rapid germination, judged on coleorhiza emergence, occurred on 20 and 25 ml of water at 6 h, but root emergence was better on 9 than on 20 ml of water. Conditions appropriate for coleorhiza emergence retard root emergence. Similarly, at 45 h, coleoptile growth was better on 9 and 12 ml than on 20 ml of water. The initial stimulation of germination by 20 ml of water, succeeded by an inhibition of root and coleoptile growth, suggests that the various organs of a barley embryo respond differentially to different volumes of ambient water.


2011 ◽  
Vol 83 (3) ◽  
pp. 1091-1096 ◽  
Author(s):  
Daniel D.C. Carvalho ◽  
Denilson F. Oliveira ◽  
Vicente P. Campos ◽  
Moacir Pasqual

In order to select phytotoxin producing rhizobacteria to control weed plants, twenty five bacterial strains previously isolated from the rhizospheres of various plants were grown in a liquid medium and, after cell removal by centrifugation, the liquid phases were freeze-dried and the products were extracted with ethyl acetate/methanol. The extracts were concentrated to dryness under vacuum and dissolved in water and sucrose solution to be submitted to in vitro assays of lettuce (Lactuca sativa L.) seed germination and wheat (Triticum aestivum L.) coleoptile growth. Although most samples affected coleoptile growth, only those from four strains reduced lettuce seed germination. Two strains of Bacillus cereus, one strain of B. pumilus and one of Stenotrophoonas altophilia were the most promising microorganisms for producing phytotoxin and, consequently, for the development of new weed control products.


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