保卫细胞

In this study, we investigated the rapid production of hydrogen peroxide (H2O2) induced by ABA in suspension culture cells of tobacco Nicotiana tabacum L.

最近的研究表明，在拟南芥保卫细胞中，NADPH氧化酶参与了ABA诱导的气孔关闭。

Each stoma is surrounded by two crescent-shaped GUARD CELLS, attached to each other at their ends, which regulate the opening and closing of the pore by changes in their turgidity.

保卫细胞可以因为自身紧张度的改变而规律性的开闭。

All plant's stomata were distributed on the abaxial of leaves.

结果表明，这些植物的气孔全部着生在远轴面。7种植物中，玉蕊和绒毛番龙眼的气孔密度较大，滇南红厚壳和团花的保卫细胞最长。

Guard cells are biochemically and anatomically the most complicated cells in the epidermal layer and are unique amongst the plant cells.

近年来，国际上十分关注气孔运动的调控机理，在保卫细胞内外的信息传递和转导途径的研究方面取得重要进展。

Actin filaments depolymerize in light, K〓 or FC-induced opening stomatal guard cell.

经过一定时间后，气孔开度不再变化，气孔重新达到稳态时，保卫细胞中又观察到微丝。

Similarly, actin filament depolymerize in dark ro ABA-induced closing stomatal guard cell and repolymerized into filaments when stomatal became stable.

经过一定时间后，保卫细胞中也再次观察到微丝。

In addition, like ascorbic acid, an important reducing substrate for H2O2 removal, but unlike diphenylene iodonium, an inhibitor of the H2O2-generating enzyme NADPH oxidase, PD98059 and TFP not only reduced exogenous H2O2 levels in guard cells in light, but also eliminated the H2O2 that had been generated during a dark period and promoted stomatal opening.

另外，和H2O2的产生有关的NADPH氧化酶的抑制剂二苯基碘的作用效果不同，而和H2O2的清除剂抗坏血酸的作用效果类似，PD98059和TFP不仅能够降低光下保卫细胞的外加的H2O2水准，而且还能清除由黑暗条件诱导的已经产生的H2O2，并能引起气孔开放。

Stomata One of a large number of pores in the epidermis of plants through which gaseous exchange occurs.

每个气孔被两个新月形的保卫细胞头尾相接围绕而成。

Guard cells : control the size of stomatal opening.

保卫细胞：控制气孔张开的大小。

It is suggested that G-protein maybe involved in the regulation of stomatal movement.

这提示G蛋白可能通过对保卫细胞内K^ 、Cl^-的调节作用而参与了气孔运动过程。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。