Staging of regeneration process of an arm of the feather star Oxycomanthus japonicus focusing on the oral‐aboral boundary
Staging of regeneration process of an arm of the feather star Oxycomanthus japonicus focusing on the oral‐aboral boundary
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DOI：
10.1002/dvdy.22429
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发表时间：
2010-11
影响因子：
2.5
通讯作者：
T. Shibata;T. Oji;K. Akasaka;K. Agata
中科院分区：
文献类型：
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作者：
T. Shibata;T. Oji;K. Akasaka;K. Agata
海百合有很强的再生能力，可以迅速恢复失去的身体部位，如手臂。观察了无柄海百合属（无柄海百合科）星星（Oxycomanthus）的臂再生过程，并将其分为10个阶段。我们阐明了口腔和背口表皮在伤口闭合中粘附的位置，并在整个再生过程中跟踪再生中的口腔-背口边界。我们认为，为整体理解动物再生而提出的远中和插入概念也适用于羽星星的臂再生。此外，我们澄清，小羽片，从臂的两侧延伸的附属物，开始在再生臂的口部区域生长，即使一个完整的小羽片具有口背轴。在手臂再生的小羽片的形态发生的模式表明，口部区域的功能作为小羽片的主要图案组织。Developmental Dynamics 239：2947-2961，2010.© 2010 Wiley利斯公司
Crinoids have strong regenerative capability and rapidly restore their lost body parts such as arms. We observed the regeneration process of arms of the feather star (stalkless crinoid), Oxycomanthus japonicus, and divided the process into 10 stages. We clarify the position at which the oral and aboral epidermis adhere in wound closure and track the oral‐aboral boundary in the regenerate during the entire process of regeneration. We suggest that the concepts of distalization and intercalation, which are proposed to understand animal regeneration integrally, are also applicable to arm regeneration of the feather star. In addition, we clarify that pinnules, appendages extending from the sides of an arm, start to grow in the oral region of the regenerating arm even though a complete pinnule has an oral‐aboral axis. The mode of morphogenesis of pinnules in arm regeneration suggests that the oral region functions as the primary patterning tissue for pinnules. Developmental Dynamics 239:2947–2961, 2010. © 2010 Wiley‐Liss, Inc.