Palme K, Hesse T, Moore I, Campos N, Feldwisch J, Garbers C, Hesse F, Schell J
Max-Planck-Institut für Züchtungsforschung, Cologne, F.R.G.
Mech Dev. 1991 Feb;33(2):97-106. doi: 10.1016/0925-4773(91)90076-i.
The organisation of growth and development in vascular plants appears to be highly adapted to meet the specific demands of a sessile, autotrophic habit. Many of the characteristic features of plant development are associated with the activities of five groups of phytohormones. Each of the phytohormones has the ability to influence fundamentally a remarkable variety of developmental and physiological processes. This ability has been widely documented but remains to be explained. Here we describe how recent breakthroughs in the analysis and understanding of eucaryotic signal transduction are being applied, in conjunction with technical advances in molecular genetics, to elucidate the molecular basis of the phytohormonal properties of auxin. Both auxin concentration, and the sensitivity of plant cells to this phytohormone have been implicated as important parameters in auxin action. We describe recent molecular biological approaches to assess the contribution made by each of these parameters. Emphasis is given to a description of recent genetic and biochemical progress towards identification of the molecular targets of the auxin signal and the molecular components involved in its subsequent transduction.
维管植物的生长和发育组织似乎高度适应以满足固着自养习性的特定需求。植物发育的许多特征都与五类植物激素的活性有关。每种植物激素都能从根本上影响多种显著不同的发育和生理过程。这种能力已有广泛记载，但仍有待解释。在这里，我们描述了真核信号转导分析和理解方面的最新突破如何与分子遗传学的技术进步相结合，以阐明生长素植物激素特性的分子基础。生长素浓度以及植物细胞对这种植物激素的敏感性都被认为是生长素作用的重要参数。我们描述了最近用于评估这些参数各自作用的分子生物学方法。重点是描述在鉴定生长素信号的分子靶点及其后续转导所涉及的分子成分方面最近的遗传和生化进展。
