Regulation of plasmodesmata in brown algae

2016 Fiscal Year Final Research Report

• Project/Area Number: 26440160
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Morphology/Structure
• Research Institution: Hokkaido University
• Principal Investigator: NAGASATO Chikako 北海道大学, 北方生物圏フィールド科学センター, 准教授 (00374710)
• Research Collaborator: FUJITA Tomomichi 北海道大学, 大学院理学研究院, 教授
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 褐藻類 / 原形質連絡 / 発生 / 微細構造 / マイクロインジェクション

Outline of Final Research Achievements

Brown algae show multicellularity and possess cellular connections called plasmodesmata which enable exchange of molecules between the neighboring cells. Plasmadesmata take tubular structure with 10 - 20 nm in diameter, and vary appearance and distribution with the developmental stages. Some new findings concerning brown algal plasmodesmata were given in this study as follows; 1) plasmodesmata are divided into primary and secondary plasmodesmata as in land plants, 2) plasmodesmatal size exclusion limit are set between 20-40 kDa in multiseriate species, and 3) pit fields in which plasmodesmata concentrate one place on the cross wall pass molecules less than 10 kDa to the next cell.

Free Research Field

藻類形態学