PATHOGENESIS-RELATED PROTEINS ARE DEVELOPMENTALLY REGULATED IN TOBACCO FLOWERS
PATHOGENESIS-RELATED PROTEINS ARE DEVELOPMENTALLY REGULATED IN TOBACCO FLOWERS
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DOI：
10.1105/tpc.1.9.881
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发表时间：
1989-09-01
期刊：
影响因子：
11.6
通讯作者：
FLUHR, R
中科院分区：
文献类型：
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作者：
LOTAN, T;ORI, N;FLUHR, R
病程相关蛋白(PR)在烟草叶片中的积累通常与病原菌和特定的生理胁迫有关。这些蛋白质中的一些已知的酶功能具有潜在的抗菌活性。通过使用针对烟草花正常发育过程中积累的三类病程相关蛋白的抗体。PR-1类蛋白(生物学功能未知)位于花冠组织中。PR-P、Q多肽是几丁质酶，存在于花梗、花冠、花药和子房中。一种血清学上与PR-2，N，O类相关的糖蛋白是一种(1，3)-β-葡聚糖酶，存在于雌蕊中。花发育过程中的差异出现、原位定位和花病程相关蛋白的翻译后处理表明，这些病程相关蛋白在开花和生殖生理的正常过程中发挥着迄今未知的功能。
The accumulation of pathogenesis-related proteins (PR) in tobacco leaves has been casually related to pathogen and specific physiological stresses. The known enzymatic function of some of these proteins is potentially antimicrobial. By using antibodies specific to three classes of pathogenesis-related proteins accumulated during the normal development of the tobacco flower. The PR-1 class of proteins (biological function unknown) is located in sepal tissue. PR-P, Q polypeptides are endochitinases and are present in pedicels, sepals, anthers, and ovaries. A glycoprotein serologically related to the PR-2,N,O class is a (1,3)-.beta.-glucanase and is present in pistils. Differential appearance during flower development, in situ localization, and post-translational processing of floral pathogenesis-related proteins point to a hitherto unsuspected function these classes of pathogenesis-related proteins play in the normal process of flowering and reproductive physiology.