Biochemical Adaptations to Anoxia in Rice and Echinochloa Seeds

  • Robert A. Kennedy
  • Theodore C. Fox
  • Leslie D. Dybiec
  • Mary E. Rumpho
Part of the NATO ASI Series book series (NSSA, volume 187)


The genus Echinochloa contains some of the most well studied flood tolerant plant species. These plants are interesting for their extreme flood tolerance, their economic importance as weeds in numerous crops around the world, particularly in rice (Oryza sativa [L.]), and because they represent a complete spectrum of flood tolerance within one genus (Barrett and Wilson, 1981, Kennedy et al., 1987b). Of the five species studied here, E. phyllopogon (Stev.) Koss and E. oryzoides (Ard.) Fritsch Clayton are flood tolerant and confined to aquatic environments. E. muricata (Beauv.) Fern is semi-tolerant and found along streambanks, whereas E. crus- galli (L.) Beauv. and E. crus- pavonis (H.B.K.) Schult. are intolerant and found only in drier sites (Barrett and Wilson, 1981). In nature, these species can all be found in or around the rice agro-ecosystem. In the laboratory, all of the species except E. crus- pavonis are able to germinate and grow in a strict N2 atmosphere, as does rice.


Anaerobic Condition Flood Tolerance Barnyard Grass Seed Reserve Substrate Level Phosphorylation 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Robert A. Kennedy
    • 1
  • Theodore C. Fox
    • 1
  • Leslie D. Dybiec
    • 2
  • Mary E. Rumpho
    • 1
  1. 1.Botany DepartmentUniversity of Maryland College ParkUSA
  2. 2.Horticulture DepartmentOhio State UniversityColumbusUSA

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