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叶状

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Leaves adaxially with sparse arachnoid tomentum when young, then glabrescent; branchlets and inflorescence axis with sparse arachnoid tomentum.

幼时的正面的叶具具稀疏蛛丝状毛,后脱落有具稀疏蛛丝状毛的小枝和花序轴。 32 V。 bellula 美丽葡萄

Cauline leaves petiolate or sessile, auriculate or amplexicaul, entire, dentate, pinnatifid, or pinnatisect.

茎生叶具叶柄或者无柄,耳形或者抱茎,整个,有齿,羽状半裂,或者羽状全裂。

Bracts 4-8 mm; corolla tube broadly tubular to narrowly funnelform, gradually ampliate from base to mouth, adaxial lip 2-lobed from near base

苞片4-8毫米;对狭漏斗状管状的宽的花冠筒,对嘴的逐渐膨大的自基部,正面的唇从近基部2裂 24 Oreocharis benthamii 大叶石上莲

Toppling failure always occurs in anaclinal slopes of layered rock mass, such as thin-bedded sedimentary rocks, foliated metamorphic rocks and those of one single joint set.

倾倒破坏通常发生於层状岩体之逆向坡,如薄层沉积岩、叶理状变质岩及其它含有单组节理之岩石。

Leaves alternate, sessile, terete, fleshy, base expanded, apex obtuse or aristate awned; leaf axil fascicular pilose.

叶互生,无柄,圆柱状,肉质,基部扩大的,先端钝或具芒;叶腋束状具柔毛。

Perianth segments with a winglike appendage in fruit (at early anthesis slightly thickened abaxially); disk lobes linear; leaves scale-like, apex awnless.

花被片与一翅状附属物一起在果期(在背面尽快开花期稍加厚);花盘裂片线形;叶鳞片状,先端。

Tufted with tillers, short rhizomes and stolons; leaf folded in bud; leaf blade bluish green, linear with boat-shape tip; inflorescence an open panicle; seeds awnless. Flowers from April to June.

本种爲簇生形,具分蘗*,亦具短的根茎及匍匐茎;叶在芽期是褶生;叶片蓝绿色,长条状,前端成船状;花序爲开放圆锥花序;种子无芒;花期4至6月。

High-resolution transmission electron microscopy of biosilica in silica cells, bulliform cells and long cells of rice epidermal systems revealed that silica bodies are made up of rods about 2. 0-3. 0 μm in length and 0.2-0.5 μm in width.

借助高分辨电镜研究水稻叶外表皮系统中的SiO〓和细胞壁基质作用时发现在硅细胞、泡状细胞和外表皮长细胞腔中SiO〓是以长 2.0-3.0μm宽0.2-0.5μm的微杆状结构团聚而成。

The expression of Bcl-2mRNA and P53mRNA in hippocampus after 16Hz, 130dB infrasound treatment In 1 day group, Bcl-2mRNA and P53mRNA were expressed lightly in CA1-CA3 areas in hippocampus and dentate gyrus. Blood vessels dilated lightly. In 7d group, Bcl-2mRNA and P53mRNA were more expressed in areas mentioned above. Dilation of capillaries and small vessels was more obvious. Bcl-2mRNA and P53mRNA were strong positive in endothelial cells of vessels. In 14d group, Bcl-2mRNA and P53mRNA expression was obviously increased in pyramidal cells of hippocampus and granular cells of dentate gyrus, showing deep blue staining. a The endothelial cells in some vessels were also strong positive for Bcl-2mRNA and P53mRNA. Dilation of capillaries and small vessels was lessened. In 21d group, Bcl-2mRNA and P53mRNA expression was decreased in pyramidal cells. In 28d group, little change about the expression and distribution of Bcl-2mRNA and P53mRNA was observed. Lots of Bcl-2mRNA and P53mRNA were scattered in cortex of temporal lobe around hippocampus and callosal gyrus area. Dilation of capillaries and small vessels was lessened obviously. The expression of Bcl-2mRNA and P53mRNA in hippocampus after 16Hz, 90dB infrasound treatment.

次声作用后Bcl-2mRNA和P53mRNA在海马的表达,16Hz、130dB次声作用1d组:两者在海马〓区和齿状回轻度表达,海马内血管轻度扩张;7d组:两者表达在上述区域较1d增多,微血管和小血管扩张较显,血管内皮细胞内可见呈强阳性表达的Bcl-2mRNA和P53mRNA;14d组:海马锥体细胞和齿状回颗粒细胞内Bcl-2mRNA和P53mRNA阳性表达明显增多,呈深兰色,在部分血管内皮细胞内两者强阳性表达,微小血管扩张状态较7d减轻;21d组:锥体细胞胞浆内Bcl-2mRNA和P53mRNA表达减弱;28d组:上述表达及分布与21d组相比无明显改变,海马周围颞叶皮层和扣带回区域亦可见大量散在分布的Bcl-2mRNA和P53mRNA表达,血管扩张状态已明显减轻。90dB次声作用1d-7d后,较对照组无明显变化,14d-21d后轻度表达,28d后,Bcl-2mRNA和P53mRNA表达较强。

According to the shape of head, the glandular hairs were divided into capitate and pehate glandular hairs.

根据腺毛头部形状可把腺毛分为盾状腺毛和头状腺毛,二者均发生得很早,它们的原始细胞都来源于原表皮,一般在茎尖第1和第2片叶原基的原表皮细胞以及茎的1~2节间原表皮细胞中开始发生。

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