Skip to main content
Plant Physiology logoLink to Plant Physiology
. 1969 Nov;44(11):1590–1593. doi: 10.1104/pp.44.11.1590

Cytochrome Oxidase Activity in Blastocladiella emersonii1

Paul A Horgen a, David H Griffin a
PMCID: PMC396310  PMID: 16657245

Abstract

Studies of cytochrome oxidase in isolated mitochondria of Blastocladiella emersonii Cant. and Hyatt show that the enzyme was present in zoospores and throughout the development of ordinary colorless sporangia and of resistant sporangia. The enzyme activity was present in KCl, NaCl, NH4Cl, and KHCO3 induced resistant sporangia, and was shown to be as active or more active than the enzyme found in ordinary colorless sporangia and zoospores. Interfering substances causing difficulties in the measurement of cytochrome oxidase activity were found in whole cell homogenates of KHCO3 grown resistant sporangia, but not in KCl, NaCl, or NH4Cl grown thalli. These substances could be removed by dialysis or by sedimentation of the mitochondria.

Full text

PDF
1592

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. CANTINO E. C., HYATT M. T. Phenotypic sex determination in the life history of a new species of Blastocladiella, B. emersonii. Antonie Van Leeuwenhoek. 1953;19(1):25–70. doi: 10.1007/BF02594831. [DOI] [PubMed] [Google Scholar]
  2. CANTINO E. C. The role of metabolism and alpha-ketoglutarate oxidase in the growth and differentiation of the aquatic phycomycete Blastocladiella emersonii. Trans N Y Acad Sci. 1953 Mar;15(5):159–163. doi: 10.1111/j.2164-0947.1953.tb00342.x. [DOI] [PubMed] [Google Scholar]
  3. Griffin D. H., Breuker C. Ribonucleic acid synthesis during the differentiation of sporangia in the water mold Achlya. J Bacteriol. 1969 May;98(2):689–696. doi: 10.1128/jb.98.2.689-696.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Griffin D. H. The interaction of hydrogen ion, carbon dioxide and potassium ion in controlling the formation of resistant sporangia in Blastocladiella emersonii. J Gen Microbiol. 1965 Jul;40(1):13–28. doi: 10.1099/00221287-40-1-13. [DOI] [PubMed] [Google Scholar]
  5. Killion D. D., Grooms S., Frans R. E. Oxidative and phosphorylative activities of mitochondria isolated from cotton hypocotyls. Plant Physiol. 1968 Dec;43(12):1996–2000. doi: 10.1104/pp.43.12.1996. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Klepper L., Hageman R. H. The occurrence of nitrate reductase in apple leaves. Plant Physiol. 1969 Jan;44(1):110–114. doi: 10.1104/pp.44.1.110. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. LOVETT J. S., CANTINO E. C. Reversible bicarbonate-induced enzyme activity and the point of no return during morphogenesis in Blastocladiella. J Gen Microbiol. 1961 Jan;24:87–93. doi: 10.1099/00221287-24-1-87. [DOI] [PubMed] [Google Scholar]

Articles from Plant Physiology are provided here courtesy of Oxford University Press

RESOURCES