Abstract

Bulliform cells of Arundo formosana Hack. occur intercostally in adaxidal epidermis of leaf blade. They are the most vacuolated among all cell types in epidermis. They contain very few organelles. Bulliform cell initiated in protoderm that is located in the sinus between two procambia. The site and initiation sequence of bulliform cells are closely related with the formation of procambia. The later enlargement of bulliform cell occurs synchronously, and is limited by the presence of subepidermal sclerenchyma neighboring it. The enlargement of bulliform cells would play an importment role in expansion of the developing blade.

中文摘要

台灣蘆竹之泡狀細胞數個成群，排列在葉片兩脈之間的上表皮。在表皮細胞中，泡狀細胞為液胞化程度最甚者，內部胞器極少。泡狀細胞原於兩原原始形成層間凹陷處之原始表層細胞，其起源順序與原始形成層之形成有關。泡狀細胞之後期膨大同步進行，其方向受其兩側之厚壁細胞形成的影響，而泡狀細胞膨大對幼葉片之開展扮演一個重要的角色。