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The dual transport system of cytoplasmic streaming in stigma papillae in relation to the cytoskeletal framework in Eichhornia crassipes

Yan Wenmei, Zhang Weicheng, Zheng Hong

Shanghai Institute of Plant Physiology, Chinese Academy of Sciences. Shanghai 200032

Abstract

Cytoplasmic streaming in stigma papillae of Eichhornia crassipes has been studied with video-microscopy. Two kinds of movement can be distinguished which are carried out by different transport systems: a mass flow of cytoplasmic bands with numerous granules attached to them and an energetic undulation of cytoplasmic strands with small particles moving along the thin cablest. the cytoplasmic fragments and granules move with mass flow at a velocity of 10-20#mu#m/s and the velocity of particle movement is only 3-6#mu#m/s, much lower than the former. Evidences obtained by treatment with anti-microtubule (amiprophousmethyl, APM) and anti-microfilament (cytochalasin B, CB) agents combined with Coomassie blue staining to show the cytoskeleton revealed further that different configurations of cytoskeleton of papillae are responsibele for the two different transport mechanisms.

Key words: Cytoplasmic streaming;Cytoskeleton;Stigma;Eichhorria crassipes

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Citing This Article：

Yan Wenmei, Zhang Weicheng, Zheng Hong. The dual transport system of cytoplasmic streaming in stigma papillae in relation to the cytoskeletal framework in Eichhornia crassipes. Acta Physiol Sin 1995; 47 (4): (in Chinese with English abstract).