锯缘青蟹营养成分分析

分析锯缘青蟹可食组分－－肌肉,生殖腺和肝脏的含量及其营养成分,其结果是雄蟹可食部分约占体重64％左右,而各组分占可食部分比率,肝脏为10．75％,雌雄生殖腺分别为16．52％和1．83％,肌肉为59．30％（雌蟹）和70．84％（雄蟹）,雌性生殖腺含水分最低（54．69％）,含蛋白质最高（30．59％）,氨基酸评分最高（93．58）,脂肪含量肝脏和雌性生殖腺较高（15．68％和14．50％）,肌肉最低（0．82％）,但肌肉中不饱和脂肪酸（UFA）,多不饱和脂肪酸（PUFA）,EPA,DHA的含量最高,分别为74．58％,47．83％,18．04％,13．52％,肝脏灰分和Ca 含量最高,每100g分别含2．72g和580mg.4组分均为高K低Na,每100g各组分中的Se含量均大于等于110ug,每100克雌生殖腺中胆固醇含量为766．16mg。     

南方鲇的皮肤腺和味蕾结构研究

用扫描电镜和组织学方法研究了南方鲇（Ｓｉｌｕｒｕｓｍｅｒｉｄｉｏｎａｌｉｓ）的皮肤腺和味蕾．结果表明,皮肤腺分为单细胞腺和群细胞腺．单细胞腺有杯状细胞、棒状细胞、颗粒细胞、浆液细胞等,棒状细胞尤为丰富．胸鳍基部的毒腺为群细胞腺．群细胞腺的发育经过增殖期、生长期和分泌期３个阶段,细胞属全分泌型．味蕾主要分布于皮肤、唇瓣、口咽腔壁和颌须上,有３种类型４种形态,Ⅳ型味蕾尤为特殊,未发现Ⅲ型味蕾．味蕾由生发层细胞特化后形成,其衰老更替现象终生存在     

沙棘的核型分析

本文分析了两种和两亚种沙棘的核型,其中:中亚沙棘(Hippophae rhamnoides L. subsp. turkestanica Rousi)的核型为首次报道。并观察到沙棘的雄、雌株性染色体有别,且属XY型。     

Case Report： Adrenal myelolipoma within myxoid cortical adenoma associated with Conn＇s syndrome

The coexistence of myelolipoma within adrenal cortical adenoma is extremely rare, for both tumors present usually as separate entities. There are only 16 such cases reported worldwide. To the best of our knowledge, the case we reported here is the first one of myxoid adrenal cortical adenoma associated with myelolipoma reported. A 32-year-old Chinese woman with 4-year history of hypertension was presented in our study. Computed tomography （CT） of the abdomen showed a large heterogeneously-enhancing mass （4.5 cm in diameter） in the left suprarenal region. Clinical history and laboratory results suggest a metabolic disorder as Conn＇s syndrome. The patient underwent a left adrenalectomy, and a histopathological study confirmed the mass to be a myxoid adrenal cortical adenoma containing myelolipoma. The patient was postoperatively well and discharged uneventfully. In the present case report, we also discuss the etiology of simultaneous myelolipoma and adrenal adenoma associated with Conn＇s syndrome, and the methods of the diagnosis and differential diagnosis.     

栉鼠耳蝠染色体组型的初步研究

经研究表明,栉鼠耳蝠染色体数为４４（２Ｎ＝４４）,常染色体中５对中部着丝点染色体,１６对端部着丝点染色体,性染色体中,Ｘ为中等大小近中部着丝点染色体,Ｙ亦为近中部着丝点染色体．     

Inheritance of the delayed gland morphogenesis trait in Australian wild species ofGossypium

Five Australian wild cotton species with the delayed gland morphogenesis trait, as well as G. arboreum, G. davidsonii and four different gland genotypes of G. hirsutum, Gl₂Gl₂Gl₃Gl₃, Gl₂Gl₂gl₃gl₃, gl₂gl₂Gl₃Gl₃, and gl₂gl₂gl₃gl₃, were used in this experiment and 10 interspecific hybrids were obtained by the crossing among them. According to the gland expression on the seeds and plants of the interspecific hybrids, the inheritance of the delayed gland morphogenesis trait of Australian wild cotton species was opened out as follows: (ⅰ) the inheritance of the delayed gland morphogenesis trait was almost the same among the 5 Australian wild cotton species, and the gene or genes which controlled this trait may be located in the same loci. (ⅱ) The glandless seed trait of the Australian wild cotton species was dominant over the glanded seed trait of G. arboreum, a genome A species, and the seeds of interspecific hybrid F₁ between them were glandless. However, it was recessive over the glanded character of genome D species, G.davidsonii, and their F₁ was a typical glanded one. (ⅲ) The glandless seed trait of the Australian wild cotton species was recessive or incomplete dominant over the glanded cotton but dominant over the glandless cotton of G. hirsutum, and the glandless genes (gl₂gl₂gl₃gl₃) of upland cotton had great weakening effect on the glanded plant trait of the Australian wild cotton species on the other hand. For the two main glanded genes of upland cotton, the delayed gland morphogenesis trait of the Australian wild cotton species was dominant epistatic over glandless genes, gl₂gl₂gl₃gl₃, and one of the glanded genes, Gl₂Gl₂, but was recessive epistatic over the other glanded gene, Gl₃Gl₃. Therefore, it is much convenient to use Gl₂Gl₂gl₃gl₃ as the upland cotton parent in the interspecific hybridization and backcrossing afterward, in order to produce the upland cotton germplasm with glandless seeds and glanded plant trait.     

唾液腺提取物对小鼠免疫功能及SOD活性的影响

以400mg/kg剂量的唾液腺提取物饲喂小鼠45d,研究唾液腺提取物对小鼠免疫调节作用及SOD活性的影响,结果表明：唾液腺提取物能显著提高小鼠细胞免疫功能和巨噬细胞吞噬功能,并能显著提高红细胞SOD活性和降低血清LPO含量。     

喜树染色体制作与核型分析

本文采用喜树顶芽及新生愈伤组织为试验材料,进行染色体制作方法的研究 并就喜树染色体核型进行了分析,其结果显示:喜树体细胞染色体为2n=44,其中正中部着丝点染色体(M)为1对,中部着丝点染色体(m)为16对,近中部着丝点染色体(sm)为1对,端部着丝点(T)为4对,其核型公式为K(2n)=44=2M+32m+2sm+8T,核型属于"2B"型     

火腿许水蚤染色体组型的初步研究

采用秋水仙素溶液浸泡，空气干燥，Ｇｉｅｍｓａ染色等方法，对采自九龙江口的火腿许水蚤染色体进行分析研究，结果表明：这种桡足类二倍染色体为数目为２ｎ＝２４，其核型公式为１４Ｍ＋６ＳＭ＋２ＳＴ＋２Ｔ，其中有一对随体染色体。     

蓝萼香茶菜和益母草的染色体核型研究

对产自中国黑龙江扎兰屯地区的蓝萼香茶菜[Isodon japonica (Burm．f．)Hara var．glaucocalyx (Maxim．) Hara]和齐齐哈尔地区的益母草(Leonurus japonicus Houtt．)进行染色体观察和核型分析。蓝萼香茶菜染色体数目为2n=24,益母草染色体数目为2n=20。问期核,蓝萼香茶菜和益母草均为复杂染色体中心型。染色体核型公式分别为K (2n)=2x=24=2M 18m 4sm 和K (2n)=2x=20=6m 14sm,核型均为“2A”型。染色体相对长度组成分别为2n=24=210 8M2 14M1和2n=20=10M2 10M1。