Skip to main content
Plant Physiology logoLink to Plant Physiology
. 1968 Jan;43(1):1–8. doi: 10.1104/pp.43.1.1

Rapid Starch Synthesis Associated With Increased Respiration in Germinating Lily Pollen 1

David B Dickinson a
PMCID: PMC396001  PMID: 16656725

Abstract

In vitro studies of germinating Lilium longiflorum pollen showed that starch increased more rapidly during the first 30 minutes of incubation than during the next several hours. The period of rapid starch formation coincided with the first period of high respiration. An estimate was made of the extra ATP utilized to form extra starch during the first 30 minutes, and this estimate indicates that starch synthesis accounts for a significant portion of the initial high rate of respiration. This pattern of respiration and starch synthesis was not altered when pollen germinated in a pentaerythritol medium that could not be metabolized instead of the standard sucrose medium.

Sucrose was the predominant sugar in mature lily pollen. This sugar decreased 50% during several hours incubation in pentaerythritol culture medium. Reducing sugars remained low during incubation which may indicate that sucrose breakdown is regulated by the rate of utilization of hexose units.

Full text

PDF
8

Selected References

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

  1. AVIGAD G. SUCROSE-URIDINE DIPHOSPHATE GLUCOSYLTRANSFERASE FROM JERUSALEM ARTICHOKE TUBERS. J Biol Chem. 1964 Nov;239:3613–3618. [PubMed] [Google Scholar]
  2. BLIGH E. G., DYER W. J. A rapid method of total lipid extraction and purification. Can J Biochem Physiol. 1959 Aug;37(8):911–917. doi: 10.1139/o59-099. [DOI] [PubMed] [Google Scholar]
  3. CARDINI C. E., LELOIR L. F., CHIRIBOGA J. The biosynthesis of sucrose. J Biol Chem. 1955 May;214(1):149–155. [PubMed] [Google Scholar]
  4. Ghosh H. P., Preiss J. Adenosine diphosphate glucose pyrophosphorylase. A regulatory enzyme in the biosynthesis of starch in spinach leaf chloroplasts. J Biol Chem. 1966 Oct 10;241(19):4491–4504. [PubMed] [Google Scholar]
  5. KERSTERS K., DE LEY J. The oxidation of glycols by acetic acid bacteria. Biochim Biophys Acta. 1963 May 14;71:311–331. doi: 10.1016/0006-3002(63)91086-2. [DOI] [PubMed] [Google Scholar]
  6. RONGINEDEFEKETE M. A., CARDINI C. E. MECHANISM OF GLUCOSE TRANSFER FROM SUCROSE INTO THE STARCH GRANULE OF SWEET CORN. Arch Biochem Biophys. 1964 Jan;104:173–184. doi: 10.1016/s0003-9861(64)80052-7. [DOI] [PubMed] [Google Scholar]

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

RESOURCES