小卵

The spore germination and gametophyte development of 21 ferns are studied. It indicates that :① the development period of prothallium and young sporophyte of the same species is different due to seeding time of spores;② the optimal temperatures of spores germination and gametophyte development of 21 ferns are about 15 -24 ℃;③ the rate of spore germination of rare ferns is much lower than the ferns which occur large populations in nature;④ the treatment with GA 3 can accelerate the germination of the spores;⑤ the prothallium changes from large to small, green to yellow when young sporophyte comes out. The prothalliums of all 21 ferns die away after the appear of the 3rd leaf of sporophytes;⑥ shapes of the 1st and 2nd leaves of the young sporophyte are different from those emerged later;⑦ spores cultured in dark can not germinate;⑧ a prothallium can develop only one young sporophyte though it has many archegoniums, and the spore propagation with leaf mould substrate is an economical method.

摘 要：以腐叶土为培养基质，对 21 种蕨类植物进行了孢子萌发和原叶体发育的研究，结果表明：①不同时期播种的同种蕨类的孢子，发育出原叶体和幼孢子体所历经的时间长短不同；②孢子萌发和配子体生长发育的适宜温度约为 15 ～ 24 ℃；③稀有蕨类的孢子萌发率低，而在野外能形成较大种群的蕨类的孢子萌发率高；④用 GA 3 处理孢子可以促进萌发；⑤当原叶体上长出幼孢子体时，原叶体由大变小，由绿变黄， 21 种蕨类的原叶体都在幼孢子体上长出第 3 片叶时消失；⑥幼孢子体上长出的第 1 、 2 片叶在形态上与以后长出的叶不同；⑦孢子萌发需要光；⑧ 1 片原叶体尽管有多个颈卵器，但仅发育出 1 株幼孢子体；⑨利用腐叶土进行蕨类孢子繁殖是一种经济实用的繁殖方法。

Seeds numerous, ovoid to oblong, minute; seed coat smooth or reticulate.

种子多数，卵球形的到长圆形，小；种皮平滑的或网状。

This low molecular weight ribonuclease with selective cytotoxicity for tumor cells isolated from oocytes of the Chinese northeast frog will join the candidate proteins of drug molecular for the treatment of cancer.

这种从中国林蛙卵中分离纯化出的具有选择性细胞毒性的小分子量核糖核酸酶，为肿瘤的治疗提供了新的候选蛋白分子。

Abdomen is rear add bag of white waxiness egg, there is line of backbone state upheaval on bursa 14 ～ 16, without the wing, antenna is black Brown, 11, every have black bristle; Mouthparts is small, rostellum 2, extreme has a lot of short-haired pelt, buccal shot is not long.

腹部后方附白色蜡质卵囊，囊上有脊状隆起线14～16条，无翅，触角黑褐色，11节，每节都有黑色刚毛；口器小，喙2节，末端有许多小毛，口针不长。

Results 1 Hypergravity influenced early development of zebrafish from zygote to early larva, and otolith size significantly larger in the early stage (P.01) but decreased subsequently. 2 Examined with EDAX, the contents of sulfur and Sr increased while Ca and Na contents decreased. 3 It was observed that sagitta and lapilli otoliths were fused into one otolith.

结果 1斑马鱼从鱼卵向早期仔鱼发育过程中超重环境影响仔鱼发育，耳石形态在初期显著变大(P.01)，其后耳石变小；2EDAX检测表明，耳石中S和Sr含量升高，Na和Ca的含量减少；3出现矢耳石与微耳石融合的现象。

As the plain sand gravel layer porosity and large, so rich in underground water, the total reserves of more than 14 billion cubic meters, in order to bury shallow, varying from small, water stable, easy extraction, mining Degree is low, characterized by good water quality.

由于平原地区砂卵砾石层孔隙度大，故地下水丰富，总储量超过140亿立方米，以埋藏浅、变幅小、水量稳定、开采方便、矿化度低、水质好为特点。

Inflorescences paniculate or corymbose cymes, coetaneous or serotinous; bracts along branches minute, linear or branched; fruit globose or ovoid, rarely ellipsoid, white, blue, or black.

花序圆锥状或伞房状聚伞花序，花叶同放或；沿着分枝小，线形的或分枝的苞片；果球状或卵球形，很少椭圆形，白色，蓝色，或黑色。

Leaf blade ovate to lanceolate with margin dentate to doubly denticulate or doubly serrulate.

叶片卵形到披针形具边缘具牙齿到具重小齿或重细锯齿。

Leaf blade ovate or suborbicular, margin serrulate, crenulate, or denticulate.

叶片卵形或近圆形，边缘有细锯齿，具细圆齿，或具小齿。

Nowadays people even eat small fry and fish eggs.

现在人甚至吃小鱼苗和鱼的卵。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新