Journal article

Plastid division in Mallomonas (Synurophyceae, Heterokonta)

Kimalee Weatherill, Irene Lambiris, Jeremy D Pickett-Heaps, James A Deane, Peter L Beech

JOURNAL OF PHYCOLOGY | BLACKWELL PUBLISHING | Published : 2007

Abstract

Laser scanning confocal microscopy and TEM were used to study the morphology of secondary plastids in algae of the genus Mallomonas (Synurophyceae). At interphase, Mallomonas splendens (G. S. West) Playfair, M. rasilis Dürrschm., M. striata Asmund, and M. adamas K. Harris et W. H. Bradley contained a single H-shaped plastid consisting of two large lobes connected by a narrow isthmus. Labeling of DNA revealed a necklace-like arrangement of plastid nucleoids at the periphery of the M. splendens plastid and a less-patterned array in M. rasilis. The TEM of M. splendens and M. rasilis showed an electron-dense belt surrounding the plastid isthmus in interphase cells; this putative plastid-dividing..

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University of Melbourne Researchers