petit1, a conditional growth mutant of arabidopsis defective in sucrose-dependent elongation growth

Tetsuya Kurata, Kotaro T. Yamamoto

    研究成果: Article査読

    23 被引用数 (Scopus)

    抄録

    The hypocotyl of Arabidopsis is well suited for the analysis of cell elongation because it elongates without cell division. We have isolated a new class of recessive mutants, petit1 (pet1), which are defective in aspects of hypocotyl elongation. The short-hypocotyl phenotype of pet1 is caused by shortened cells. The cells of the elongation zone of the hypocotyl are often deformed, pet1 also shows defects in elongation of the roots, flower stalk, leaves, petals, pedicels, and siliques, and these defects cannot be repaired by the application of auxin, gibberellin, brassinolide, or an inhibitor of ethylene biosynthesis. The short-hypocotyl phenotype of pet1 is pronounced only in growth medium supplemented with sucrose, which has promotive effects on hypocotyl elongation. In pet1 this effect is much reduced, causing the sucrose-dependent short-hypocotyl phenotype of pet1. pet1 accumulates more soluble sugars than the wild type and also shows more intensive iodo-starch staining in the cotyledon and hypocotyl. These results indicate that PETIT1 is involved in a sugar-dependent elongation process that may include correct assembly of expanding cell wall architecture.

    本文言語English
    ページ(範囲)793-801
    ページ数9
    ジャーナルPlant physiology
    118
    3
    DOI
    出版ステータスPublished - 1998

    ASJC Scopus subject areas

    • 生理学
    • 遺伝学
    • 植物科学

    フィンガープリント

    「petit1, a conditional growth mutant of arabidopsis defective in sucrose-dependent elongation growth」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル