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http://dx.doi.org/10.4490/ALGAE.2009.24.2.057

Morphological Note of Zygnema cruciatum (Zygnemataceae, Chlorophyta) in Korea  

Kim, Jee-Hwan (Institute for Basic Sciences,Chungbuk National University)
Kim, Young-Hwan (Department of Biology,Chungbuk National University)
Publication Information
ALGAE / v.24, no.2, 2009 , pp. 57-60 More about this Journal
Abstract
We described a freshwater filamentous zygnematacean species, Zygnema cruciatum (Vaucher) Agardh in Korea,based on light microscopy and scanning electron microscopy. Zygnema cruciatum is characterized by unbranched fil-amcnts of short cylindrical cells, two stellate chloroplasts per cell, a pyrenoid in each chloroplast. Cells are 32-39 $\mu$m in width and 35-50 $\mu$m in length, Conjugation is scalariform and female gametangia are cylindrical or slightlyenlarged. Zygospores are yellow-brown, spherical or broadly ovoid, 35-44 $\mu$m wide and 40-47 $\mu$m long. Under SEM, wall of zygospore has pitted mesospore and pits are 1.4-1.8 $\mu$m in diameter and 3-4 $\mu$m apart from each other.
Keywords
conjugation; morphology; zygnema; Z. cruaiatum; Zygnemataceae;
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