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Structures of the plant trophic tract: Plastid stromules and cell-wall plasmodesmata

Content Provider	Springer Nature Link
Author	Gamalei, Yu. V.
Copyright Year	2014
Abstract	Plastid stromules and cell-wall plasmodesmata are special plant-cell stsructures. They were discovered a century and a half apart: stromules at the beginning of the 21st century and plasmodesmata the end of the 19th. The former and latter are intra- and intercellular fragments, respectively, of endoplasmic reticulum, which is a network for photosynthesis distribution in the plant body. Methods and history of discovery, structural similarities and differences, and series of functional interpretations are discussed. The origins of both structures are connected with photosynthesis and photosynthate export. Their tubular structure and transport function are similar. The mobility of both is under control of the actomyosin cytoskeleton. The temperature regimes of formation and functioning also are the same. Photosynthesis is possible at 0°C and even lower. The structures of the exporting network—stromules and plasmodesmata—do not form below 10°C, and after 20°C the numbers of the former and latter significantly increase in relation to growth of cytoskeleton plasticity. The structural and functional continuity of stromules and plasmodesmata are postulated as the mobile trophic tract of vascular plants.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	1990519X
Journal	Cell and Tissue Biology
Volume Number	8
Issue Number	1
e-ISSN	19905203
Language	English
Publisher	Springer US
Publisher Date	2014-02-11
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	endoplasmic reticulum stromules plasmodesmata cytoskeleton photosynthesis photosynthate export plant trophic tract plant forms Cell Biology
Content Type	Text
Resource Type	Article
Subject	Cell Biology

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