胼胝质：一种多功能的（1,3）-β-D-葡聚糖，参与被子植物气孔的形态发生和功能。
Callose: a multifunctional (1, 3)-β-D-glucan involved in morphogenesis and function of angiosperm stomata.
作者信息
Apostolakos Panagiotis, Giannoutsou Eleni, Galatis Basil
机构信息
Section of Botany, Department of Biology, National and Kapodistrian University of Athens, Athens, Greece.
出版信息
J Biol Res (Thessalon). 2021 Aug 3;28(1):17. doi: 10.1186/s40709-021-00150-9.
BACKGROUND
Although the cellulose microfibril organization in guard cell (GC) walls play a crucial role in the mechanism of the stomatal function, recent work showed that matrix cell wall materials are also involved. Especially in the kidney-shaped stomata of the fern Asplenium nidus, callose actively participates in the mechanism of opening and closure of the stomatal pore.
SCOPE
The present review briefly presents and discusses recent findings concerning the distribution and role of callose in the kidney-shaped stomata of the dicotyledon Vigna sinensis as well as in the dumbbell-shaped stomata of the monocotyledon Zea mays.
CONCLUSION
The discussed data support that, in both categories of angiosperm stomata, callose is implicated in the mechanism of stomatal pore formation and stomata function by locally affecting the mechanical properties of the GC cell walls.
背景
尽管保卫细胞壁中的纤维素微纤丝组织在气孔功能机制中起着关键作用，但最近的研究表明，细胞壁基质材料也参与其中。特别是在鸟巢蕨的肾形气孔中，胼胝质积极参与气孔孔口开闭机制。
范围
本综述简要介绍并讨论了有关胼胝质在双子叶植物豇豆的肾形气孔以及单子叶植物玉米的哑铃形气孔中的分布和作用的最新研究结果。
结论
所讨论的数据支持，在这两类被子植物气孔中，胼胝质通过局部影响保卫细胞细胞壁的力学性能，参与气孔孔口形成机制和气孔功能。
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