Skip to main content

Developmental analyses of the phyllomorph formation in the rosulate species Streptocarpus rexii (Gesneriaceae)

Abstract

Although some species of Streptocarpus (Gesneriaceae) do not possess a layered shoot apical meristem (SAM), but three individual meristems, the basal meristem (BM), the petiolode meristem (PM) and the groove meristem (GM) on the petiolode from which additional phyllomorphs are formed. To gain insights into the processes involved, we examined the development of seedlings from germination to the formation of the primary phyllomorph in S. rexii, a rosulate species. Our specific focus was to examine the relationship between the functional activity of the GM and meristematic activity, which was assessed by a combined analysis of toluidine blue staining of histological sections and the incorporation of BrdU into meristematic tissues. The results were integrated into 3-D graphics, which suggests a complex spatial and temporal interaction within the GM. The significance of our observations is discussed and compared to the SAM observed in most other angiosperms.

This is a preview of subscription content, access via your institution.

References

  • J. L. Bowman Y. Eshed (2000) ArticleTitleFormation and maintenance of the shoot apical meristem Trends Pl. Sci. 5 110–115 Occurrence Handle10.1016/S1360-1385(00)01569-7 Occurrence Handle1:STN:280:DC%2BD3MvnslKnsQ%3D%3D

    Article  CAS  Google Scholar 

  • S. E. Clark (2001) ArticleTitleCell signaling at the shoot meristem Nature Rev. Mol. Cell Biol. 2 276–284 Occurrence Handle10.1038/35067079 Occurrence Handle1:CAS:528:DC%2BD3MXis12jtLk%3D

    Article  CAS  Google Scholar 

  • C. J. Harrison M. Möller J. Langdale Q. C. B. Cronk A. Hudson (2005) ArticleTitleThe Role of KNOX genes in the evolution of morphological novelty in Streptocarpus Pl. Cell 17 430–443 Occurrence Handle10.1105/tpc.104.028936 Occurrence Handle1:CAS:528:DC%2BD2MXhsFKqsr0%3D

    Article  CAS  Google Scholar 

  • O. M. Hilliard B. L. Burtt (1971) Streptocarpus. An African plant study Natal University Press Pietermaritzburg

    Google Scholar 

  • R. Imaichi S. Nagumo M. Kato (2000) ArticleTitleOntogenetic anatomy of Streptocarpus grandis (Gesneriaceae) with implication for evolution of monophylly Ann. Bot. 86 37–46 Occurrence Handle10.1006/anbo.2000.1155

    Article  Google Scholar 

  • K. Jong (1970) Developmental aspects of vegetative morphology of Streptocarpus PhD dissertation University of Edinburgh Edinburgh, UK

    Google Scholar 

  • K. Jong (1978) ArticleTitlePhyllomorphic organization in rosulate Streptocarpus Notes R. Bot. Gard. Edinburgh 36 369–396

    Google Scholar 

  • K. Jong B. L. Burtt (1975) ArticleTitleThe evolution of morphological novelty exemplified in the growth patterns of some Gesneriaceae New Phytologist 75 297–311 Occurrence Handle10.1111/j.1469-8137.1975.tb01400.x

    Article  Google Scholar 

  • A. Kuwabara H. Tsukaya T. Nagata (2000) ArticleTitleIdentification of factors that cause heterophylly in Ludwigia arcuata Walt. (Onagraceae) Pl. Biol. 50 98–105

    Google Scholar 

  • Mantegazza R., Möller M., Harrison C. J., Fior S., De Luca C., Spada A. (2006) Anisocotyly and meristem initiation in an unorthodox plant, Streptocarpus rexii (Gesneriaceae). Planta Online First DOI 10.1007/s00425-006-0389-7.

  • E. M. Meyerowitz (1997) ArticleTitleGenetic control of cell division patterns in developing plants Cell 88 299–308 Occurrence Handle9039256 Occurrence Handle10.1016/S0092-8674(00)81868-1 Occurrence Handle1:CAS:528:DyaK2sXhtFahtrg%3D

    PubMed  Article  CAS  Google Scholar 

  • M. Möller Q. C. B. Cronk (2001) ArticleTitleEvolution of morphological novelty: a phylogenetic analysis of growth patterns in Streptocarpus (Gesneriaceae) Evolution 55 918–929 Occurrence Handle11430652 Occurrence Handle10.1554/0014-3820(2001)055[0918:EOMNAP]2.0.CO;2

    PubMed  Article  Google Scholar 

  • T. Murashige F. Skoog (1962) ArticleTitleA revised medium for rapid growth and bioassay with tobacco cultures Physiol. Pl. 15 473–497 Occurrence Handle10.1111/j.1399-3054.1962.tb08052.x Occurrence Handle1:CAS:528:DyaF3sXksFKm

    Article  CAS  Google Scholar 

  • K. Nishii A. Kuwabara T. Nagata (2004) ArticleTitleCharacterization of anisocotylous leaf formation in Streptocarpus wendlandii (Gesneriaceae): significance of plant growth regulators Ann. Bot. 94 457–467 Occurrence Handle15286012 Occurrence Handle10.1093/aob/mch160 Occurrence Handle1:CAS:528:DC%2BD2cXovVWrsrk%3D

    PubMed  Article  CAS  Google Scholar 

  • R. S. Poethig (1997) ArticleTitleLeaf morphogenesis in flowering plants Pl. Cell 9 1077–1087 Occurrence Handle10.1105/tpc.9.7.1077 Occurrence Handle1:CAS:528:DyaK2sXlt1ShtLk%3D

    Article  CAS  Google Scholar 

  • D. Reinhardt T. Mandel C. Kuhlemeier (2000) ArticleTitleAuxin regulates the initiation and radial position of plant lateral organs Pl. Cell 12 507–518 Occurrence Handle10.1105/tpc.12.4.507 Occurrence Handle1:CAS:528:DC%2BD3cXktFWisrw%3D

    Article  CAS  Google Scholar 

  • D. Reinhardt E.-R. Pesce P. Stieger T. Mandel K. Baltensperger M. Bennett J. Traas J. Friml C. Kuhlemeier (2003) ArticleTitleRegulation of phyllotaxis by polar auxin transport Nature 426 255–260 Occurrence Handle14628043 Occurrence Handle10.1038/nature02081 Occurrence Handle1:CAS:528:DC%2BD3sXptVOisLo%3D

    PubMed  Article  CAS  Google Scholar 

  • F. Skoog C. O. Miller (1957) ArticleTitleChemical regulation of growth and organ formation in plant tissues cultured in vitro Symposia of the Society for Experimental Biology 54 118–130 Occurrence Handle13486467 Occurrence Handle1:STN:280:CyeD38bhs1c%3D

    PubMed  CAS  Google Scholar 

  • H. Tsukaya (1997) ArticleTitleDetermination of the unequal fate of cotyledons of a one-leaf plant, Monophyllaea Development 124 1275–1280 Occurrence Handle9118798 Occurrence Handle1:CAS:528:DyaK2sXivFKhtro%3D

    PubMed  CAS  Google Scholar 

  • A. Weber (1975) ArticleTitleContributions to the morphology and systematics of the Klugieae and Loxonieae (Gesneriaceae). 1. The shoot and inflorescence organization of Monophyllaea R Br. Ms. Bot Jahrb. Syst. 95 174–207

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to K. Nishii.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Nishii, K., Nagata, T. Developmental analyses of the phyllomorph formation in the rosulate species Streptocarpus rexii (Gesneriaceae). Plant Syst. Evol. 265, 135–145 (2007). https://doi.org/10.1007/s00606-007-0515-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00606-007-0515-4

Keywords

  • Streptocarpus rexii
  • Gesneriaceae
  • leaf formation
  • shoot apical meristem
  • groove meristem