变态期

甲状腺激素T4对变态期牙鲆TRαA基因转录可能有下降调节作用。

Thyroid hormone T_4 may down-regulate TR α A gene mRNA expression during metamorphosis in Paralichthys olivaceus .

北方狭口蛙Kaloulaborealis（Barbour）蝌蚪尾在变态期退化过程中的组织学观察

Histological investigations of the tadpole tail of Kaloula Borealis ( barbour ) in the process of degeneration during metamorphosis

变态期精子Ca￣（2＋）则分布于精子顶体内膜与核膜之间。

On elongate spermidCa ￣( 2 + ) only located in space between inner acrosomal membrane and nuclear membrane .

以DDVP缓释剂药丸在实验室及野外对不同变态期的长尾黄鼠寄生蚤进行了杀灭试验。

Laboratory and field tests were conducted for the control of fleas on Citellus undulatus in their various metamorphotic stages with DDVP slow-releasing pellets .

利用形态学观察方法、分子生物学检测方法以及20-羟基蜕皮酮（20-hydroxyecdysone）和放线菌酮（cycloheximide）体外培养方法，研究了家蚕Bombyxmori蛹变态期丝腺组织的退化与细胞凋亡特征。

The characteristics of degeneration and apoptosis of silk glands , during the larval_pupal metamorphosis in the silkworm , Bombyx mori were studied by the general morphological observation , the molecular methods , and in vitro cultivation with 20_hydroxyecdysone and cycloheximide .

不同温度条件下牙鲆变态期生长发育变化的研究

Growth and development of Paralichthys olivaceus in metamorphosis period at different temperatures

柞蚕变态期雌体生殖系统发育的组织结构观察

Histology of Female Reproductive System in Tussah Metaphysis

中室与鼻泪管同样出现于变态期。

The cavum medium and nasolacrimal duct appear at the metamorphic stage , too .

该蜱在不同变态期中，以幼蜱阶段对灭蜱药物最为敏感。

Larva is the most sensitive to the medicine in the different periods of metamorphosis .

染色体三倍化对雄鱼的影响主要发生在精子发生的晚期（精子变态期）。

The impact of chromosome triplication on male triploid mainly happened in the advanced stage ( stage of metamorphosis ) of spermatogenesis . 7 .

上述结果表明，20-羟基蜕皮酮能够诱导家蚕丝腺组织在蛹变态期发生程序性细胞死亡。

From these results , it was concluded that molting hormone 20_hydroxyecdysone could turn on programmed cell death of the silk gland during larval_pupal metamorphosis .

将变态期划分为3个亚期共5个阶段，并依据实验结果得出：牙鲆变态期的生长规律呈加速→减速→再加速的变化过程；

Metamorphosis period is divided into 3 sub-periods , 5 singes totally . The results showed that the : larvae experienced accelerated → decelerated → accelerated growth process in metamorphosis period ;

通过整蚕（蛹）石蜡切片甲基绿-派罗宁和孚尔根染色的方法对变态期家蚕中肠、丝腺的形态结构进行显微观察。

Using the methods of paraffine-mounted sectioning and staining by methyl green-pyronine and feulgen , the morphology and structure of midgut and silk-gland of silkworm , Bombyx mori , were observed by microscopy during metamorphosis .

应用双向电泳、同位素标记、放射自显影及计算机蛋白质电泳图谱分析技术研究了家蚕5龄期和变态期脂肪体合成蛋白质的变化。

Protein synthesis of fat body in the middle of the 5 th instar and metamorphosis period in Bombyx mori was studied by two dimensional electrophoresis , isotope labeling radioautography and computer protein electrophoresis map analysis .

对变态期精子细胞核蛋白转换的影响表现为总碱性核蛋白含量减少47.11%，总组蛋白精核蛋白比值升高82.25%。

The concentration of total alkaline nuclear protein ( TNBP ) was decreased by 47.11 % and the ratio of total tissue protein ( TH ) / spermic nuclear protein ( RP ) was increased by 80.25 % .

同时，对鲻鱼早期发育的生物学特点、疾病、变态危险期和生长差异等进行了讨论，指出鲻鱼与环境和饲育条件之间的生态生理关系，以及这种关系对鲻鱼生长和存活的影响。

The ecological and physiological relationships between development and environment of the larvae and juvenile , as well as their effects on growth and survival , are discussed . I is presented . relation .

（关于具有水生初期阶段的昆虫）经历与成虫不相似的不完全变态的幼虫期的。

( of an insect with aquatic young ) undergoing incomplete metamorphosis in which the young does not resemble the adult .

因此，圆背角无齿蚌的变态发育包括两个明显的阶段：第一阶段为寄生变态期；

Accordingly , metamorphosis development of A. wp includes two identical phases : the first is parasitic metamorphosis phase ;