查询词典 gonadial

In both Pacific oyster and Zhikong scallop, gonad of triploid animal was observed to development in the developing seasons. While during the gonadial developmental stage since 3 to 6 year-old, gonads of all triploid Pacific abalones fail to develop. Whether there is relation between a-TSP and gonadial development is to be studied.

皱纹盘鲍的三倍体个体性腺基本不发育，而长牡蛎和栉孔扇贝的三倍体虽然性腺发育不良，但可产生成熟的配子并可育，因此a-TSP与鲍的性腺发育抑制可能有关，但尚有待证实。

The results indicated that (1) the 147Pm, 141Ce and 147Nd had strong adsorptivity in soil, so they were hard to transfer and easily accumulated in soil or sediment;(2) all the organisms (5 aquaties and 4 eatable plants) tested showed apparent 147Pm concentrating capabilities;(3)the residues of 147Pm, 141Ce and 147Nd were unevenly distributed in the animal's viscera and tissues, higher residues were found in bone, marrow, eye, brain, heart, adipose and testis, showing selective accumulation;(4) with intraperitioneal dosing of Nd or Ce 200mg ·kg -1 apparent inhibition to gonadial hormone secretion in mice was found and with 200 and 800mg·-1 of Ce added in feed, the malformation rate of spematozoon showed higher.

综合研究结果表明： 14 7Pm、14 1Ce和14 7Nd在土壤中具有强的吸附性，而且难以迁移，易于在土壤和底泥中积累；( 2 )供试的 5种水生生物、4种陆生食用植物对14 7Pm均具有明显的富集性；( 3) 14 7Pm、14 1Ce、14 7Nd在动物体内脏器和组织间呈不均匀分布，在骨骼、骨髓、眼、大脑、心脏、脂肪和睾丸中残留量较高，表现了明显的选择性蓄积；( 4 )一次性腹腔注射2 0 0mg·kg-1的Ce和Nd对小鼠性腺激素的分泌有明显的抑制作用，以 2 0 0和80 0mg·-1的Ce随饲料摄入对雄性小鼠精子畸形率明显升高。

Onchidium struma Cuvier; Reproductive system; Gonadial development; Reproductive cycle

中文关键字：瘤背石磺；生殖系统；性腺发育；生殖周期

Furthermore,MH shortenmolting period and accelerating the gonadial development.This is the major causegiving rise to precocious mature in the cultured chinese mitten crab.Keywords:Eriocheirsinensis Precocious crab Culture Ultrastructure Cell

体内高浓度的胆固醇通过抑制眼柄神经分泌细胞抑制性神经肽激素的合成和释放，促进Y-器官合成和释放MH，缩短养殖河蟹的蜕皮周期，加速了河蟹的性腺发育，造成养殖河蟹性早熟。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。