配子体发育
配子体发育的相关文献在1986年到2022年内共计83篇,主要集中在植物学、园艺、农作物
等领域,其中期刊论文83篇、专利文献532973篇;相关期刊43种,包括上海师范大学学报(自然科学版)、哈尔滨师范大学自然科学学报、热带亚热带植物学报等;
配子体发育的相关文献由194位作者贡献,包括戴锡玲、郭治友、石雷等。
配子体发育—发文量
专利文献>
论文:532973篇
占比:99.98%
总计:533056篇
配子体发育
-研究学者
- 戴锡玲
- 郭治友
- 石雷
- 张开梅
- 曹建国
- 刘保东
- 王任翔
- 李东
- 王全喜
- 张宪春
- 成晓
- John Bennett
- Krishna Jagadish
- 刘光华
- 刘燕
- 刘红梅
- 周维
- 周雷
- 尤瑞麟
- 常缨
- 徐艳
- 易锦言
- 李丽诗
- 李新国
- 李自超
- 楼辰军
- 焦瑜
- 罗顺元
- 赵继新
- 邓晰朝
- 邓洪平
- 郭严冬
- 陈彦安
- 陈水木
- 黄庆阳
- 丁炳扬
- 万劲
- 于鑫鑫
- 代小菲
- 仲晓烨
- 任小平
- 伍莲
- 何田华
- 何进
- 俞筱押
- 冯玉兰
- 刘恩德
- 刘林德
- 刘沨
- 刘灵
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于鑫鑫;
赵碧宁;
吴宇迪;
原千舒;
刘珊;
曹雅明;
刘飞
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摘要:
为探讨伯氏疟原虫(Plasmodium berghei)Pb22蛋白免疫血清的传播阻断能力,应用原核表达系统高效表达Pb22截短蛋白免疫小鼠后获得免疫血清。IFA实验证明Pb22截短蛋白免疫血清均可与疟原虫天然抗原结合。通过传播阻断实验,比较了Pb22截短蛋白和全长蛋白免疫血清的传播阻断效果,证明截短蛋白和全长蛋白对雄配子体出丝均有抑制作用,结果表明全长蛋白免疫小鼠的雄配子体出丝与对照组相比显著下降,截短蛋白免疫小鼠的雄性配子体出丝具有下降趋势但无统计学差异。全长蛋白和截短蛋白免疫小鼠的动合子形成数量较对照组均显著下降。以上结果表明抗Pb22截短蛋白免疫血清具有传播阻断能力,但阻断效果不如全长蛋白免疫血清。
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庆军;
朱利利;
杜红岩
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摘要:
[目的]观察杜仲雌雄花芽在发育过程中其外部形态特征与内部解剖结构的变化和对应关系,研究花芽不同发育时期的激素含量变化,探索不同激素对雌雄花器官发育的调控作用,为生产栽培管理研究提供参考依据.[方法]采用石蜡切片法观察杜仲雌雄花芽分化过程中的解剖结构,结合高效液相色谱-电离串联质谱法(HPLC-ESI-MS/MS)测定不同分化期雌雄花芽的内源激素-脱落酸(ABA)、生长素(IAA)和玉米素核苷(ZR)含量的变化,探讨杜仲雌雄花芽成花过程及其内源激素含量的变化.[结果]1)杜仲雌雄花芽内部结构特征与外部形态变化具有相对稳定的时序性对应关系,雌雄花芽均为混合芽,分化过程基本同步,从4月下旬持续到11月中上旬,分化过程可划分为花序原基分化期、苞片原基分化期、雌/雄蕊原基分化期、雌/雄蕊形态建成期4个时期,此后花芽进入休眠期,雌/雄蕊原基分化期是雌雄花器官内外结构开始差异分化的关键时期.2)杜仲雌雄花芽于第二年2月中旬解除休眠,雌雄配子体逐渐发育成熟,雄花的小孢子进行有丝分裂形成成熟的二核花粉粒,雌花的胚囊最终发育为单核、发育过程属于蓼型,整个发育过程雌雄花芽外部形态与内部结构变化相对应.3)杜仲雌、雄花芽的IAA和ZT含量在花芽不同发育阶段变化趋势一致,且雌花芽的IAA含量始终高于雄花芽,ZR含量始终低于雌花芽;而ABA含量在雌雄花芽间变化趋势发生变化,在雌/雄蕊原基分化期雌花芽ABA含量低于雄花芽,而其他发育时期的含量高于雄花芽.[结论]杜仲雌雄花芽发育过程中外部形态变化能够反应内部结构特征,同时高水平的IAA含量、低水平的ABA和ZR含量促进雌蕊原基的发育,高水平的ABA和IAA含量、低水平的ZR含量促进雄蕊原基的发育.
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杨楠;
聂江力;
辛微;
裴毅;
石福臣
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摘要:
以天津蓟州区发现的野生山樱桃花芽和花蕾为试验材料,采用石蜡切片法对野生山樱桃大小孢子发生、雌雄配子体发育过程和雌雄性细胞发育的对应关系进行了研究.结果表明:野生山樱桃花药为蝶形,有4个药室,花药壁由内而外分别是绒毡层、中层、药室内壁和表皮,四分体为正四面体.大孢子发生过程中,孢原细胞分裂产生造孢细胞,进而分裂形成大孢子母细胞.大孢子母细胞减数分裂成线性排列的四分体,形成4个大孢子,最后只有1个功能大孢子最终发育成胚囊.部分山樱桃子房中形成双胚珠,其中一个可以发育成成熟胚珠,另一个退化消失.山樱桃雄蕊发育早于雌蕊.
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梅红雪;
顾钰峰;
李婧;
王欣;
刘保东
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摘要:
该研究以水龙骨科(Polypodiaceae)槲蕨(Drynaria roosii Nakaike)为研究对象,在人工培养条件下,采用扫描电镜观察其配子体发育的全过程,以期从三维立体角度揭示槲蕨配子体各发育阶段中的一些精细结构,为进一步补充部分经典形态学理论提供依据.结果 显示:(1)槲蕨孢子萌发过程中原叶体母细胞的初生假根存在两条同时生长的现象.(2)槲蕨配子体的假根膨大及分叉现象普遍,且具有2层细胞壁,基部呈圆孔状结构.(3)槲蕨的原叶体腹面及边缘处毛状体非常发达,且乳突状单细胞毛状体和针状单细胞毛状体混生.(4)精子器释放精子时,盖细胞前后呈不同开裂状态.(5)发现精细胞向游动精子转化可能的限制性结构是细胞膜,细胞膜表面附着有碎屑状物质.(6)观察到腹沟细胞的解体过程是从近颈卵器开口处的细胞膜开始逐渐向四周及其后下方扩展.(7)发现了颈壁细胞在排列顺序和数量上都不稳定的畸形颈卵器、体积正常但无法区分雌雄的性器及体积显著增大呈锥形的泡状败育性器.
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朱栗琼;
袁娟;
韦立迪;
韦艳春;
招礼军
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摘要:
用石蜡切片法对不同发育时期的大花紫薇(Lagerstroemia speciosa)花朵进行解剖研究,探讨其大小孢子的发生及雌雄配子体的发育过程,结果发现:大花紫薇花药4室,花药壁由表皮、药室内壁、中层和腺质绒毡层构成,发育类型为双子叶型;小孢子四分体多为四面体型,偶见十字交叉型,胞质分裂为同时型;成熟花粉粒属于2-细胞型,具3孔沟,偶见败育现象;大花紫薇雌蕊具6~7心皮,子房6~7室,每室具多枚倒生胚珠,双珠被,厚珠心,大孢子4分体呈直线排列,近合点端大孢子发育为蓼型胚囊,成熟胚囊为7细胞8核。花粉及胚囊发育多数正常,大花紫薇可以作为优良的杂交母本;同时可以根据开花物候不同阶段花的形态特征,初步判断大花紫薇大、小孢子发生和雌、雄配子体的发育进程。
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陈倩;
段映霞;
戴锡玲
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摘要:
Morphological variation during the gametophyte development process of Dryopteris chinensis ( Bak.) Koidz. was observed. The results show that the development process of D. chinensis can be divided into spore germination, filament formation, plate formation, prothallus formation, sexual organ formation and apogamety. The spores are bilaterally symmetric, monolete, surface with ridge fold ornamentation, elliptical in polar view, and approximately semicircle-shaped in equatorial view. The spore germination type is of Vittaria-type;the filaments with a length of 3-7 cells, not branched or occasionally branched, with single or double row cells; mature prothallus is symmetrically cordate, and the development type of prothallus is of Aspidium-type, with long unicellular clavate trichomes distributed on the surface and in the margin;with antheridium but archegonium is not observed, belongs to apogamety. One prothallium of D. chinensis produces one embryo, and young embryo can be generated within one month after the formation of antheridium; there are a lot of unicellular trichomes and some multicellular trichomes on the young embryo of sporophyte.
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黄飞逸;
豆苏含;
张亚东;
庞晓明;
李颖岳
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摘要:
为完善冬枣生殖生物学和枣树遗传改良理论基础,以不同发育时期的冬枣花蕾为材料,采用压片技术和常规石蜡切片技术,对冬枣大小孢子发生及雌雄配子体发育过程进行观察。结果表明,冬枣具五枚花药,花药四室,花药壁由表皮、药室内壁、1~2层中层和腺质型绒毡层组成,花药壁的发育属于基本型。小孢子母细胞胞质分裂为同时型,四分体的排列多数呈四面体型,成熟花粉具3个萌发孔,3沟,为二细胞型花粉。冬枣为2室子房,倒生胚珠,多胚珠,内外双层珠被,厚珠心;大孢子母细胞经减数分裂形成的四分体沿珠心呈直线排列,靠近合点端的大孢子发育为功能大孢子,经连续三次有丝分裂发育为七细胞八核的成熟胚囊,胚囊发育属于蓼型。冬枣雄蕊发育显著早于雌蕊,小孢子发育过程存在不同步和异常现象,花朵开放时雌、雄蕊发育趋于同步,大小孢子的发育进程与花蕾外部形态具有相关性。本研究揭示了冬枣大小孢子发生和雌雄配子体发育过程中的基本现象和规律,为枣胚胎学的进一步研究以及倍性育种提供了重要参考。
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陈思琦;
简金晶;
张妍;
戴锡玲
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摘要:
银粉背蕨是一种小型观赏蕨类植物,但目前我国对该蕨的研究还不够成熟。本文利用改良Knop’s培养基和腐殖土培养银粉背蕨的孢子,观察其配子体及幼孢子体形态发育特征,并研究了其配子体发育的最适培养基p H值。研究结果显示:(1)银粉背蕨孢子黄褐色,具三裂缝,极面观三角圆形,赤道面观为近半圆形,孢子具网状纹饰;孢子萌发为书带蕨型;原叶体发育为水蕨型;颈卵器和精子器为薄囊蕨型;成熟原叶体为对称的心脏形,不具毛状体;上述特征为银粉背蕨孢子和配子体发育的稳定特征。(2)培养基p H值在7.0~9.0时随着碱性的增强,银粉背蕨孢子萌发和配子体生长发育速度逐渐增加。(3)利用腐殖土培养银粉背蕨孢子,7~8周可发育成幼叶,成苗率达90%,成苗健壮,根系发达,是扩繁银粉背蕨的适宜方式。本文为资源植物银粉背蕨人工繁殖和演化研究提供科学依据。
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邓晰朝
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摘要:
Onychium japonicum falls into the category of Onychium Kaulf. of Sinopteridaceae;however, the alliance of Ony-chiumremains controversial. In this study, the spores of O. japonicum were artificially cultured in the original habitat humus soil and improved Knop′s nutrient solution in a constant temperature of 25°C with 12 h of light and dark respectively per day and 2 500 lx of light intensity. Spore germination and gametophyte development were observed and recorded at every stage under the microscope. The results indicated that mature spores were tawny,tetrahedral,3-colporate,with fan-shaped e-quatorial view,perispore and reticulation on the surface of the exine. The germination procedure was Vittaria-type while the gametophyte development was Ceratopteris-type. The spores cultivated in either of the two substrates began to germinate a-bout 7 d and their germination shared the same Vittaria-type. With multiple transverse fission,the original gametophyte cell gradually turned into 3-9 protonemata with cylindrical shape, thin perispore,lumpy lateral exine and numerous granular chloroplasts. After about 15 d,the spores developed into prothallial plates and most of prothallial plates appeare spatulate.And 25 d later, young prothalliums were formed but they were not symmetrical;meanwhile, the gametophytes developed were Ceratopteris-type. When the prothalliums were developing, branching protonemata were flourishing and gametophytes were becoming fasciculate without any trichome. The rhizoids of O. japonicum, occasionally branching and lacking chloro-plasts, were unicellular and tubular. After about 45 d,antheridium, composed of a cap cell, a ring cell and a basal cell, e-merged from the edge of several irregular prothalliums. When the antheridium became mature, the cap cell split and sperm spilt. The antheridium looked like a circle from the top and an oval or a short column from the side. About 60 d later, a large archegonium was clearly visible. Its base was bigger than the top. It looked like a coin from the top and a chimney from the side. Its neck consisted of four rows of cells. When the archegonium was fully developed, sperm entered and fertilized the egg cell inside. Half a month later, a young embryo could be clearly seen. About 90 d after sowing,the spores developed into juvenile sporophytes which were visible to the naked eye. It could be concluded from the findings that O. japonicum shared similar characteristics with Pteris of Pteridaceae in terms of gametophyte development. Therefore, O. japonicum could be classified into the Pteridaceae family. The study would provide evidence for the phylogenetic study of O. japonicum from the perspective of gametophyte development.%野雉尾金粉蕨为中国蕨科金粉蕨属植物,而金粉蕨属的系统位置一直存在争议。该研究用原生境腐殖土和改良克诺普氏( Knop’ s)营养液对野雉尾金粉蕨的孢子进行培养,培养条件为温度25°C、光照强度2500 lx、光照12 h/d,在光学显微镜下观察记录其孢子萌发和配子体发育过程。结果表明:野雉尾金粉蕨的孢子为黄褐色,四面体型,三裂缝,赤道面观为扇形,具周壁,外壁表面具网状纹饰。孢子培养7d后开始萌发,孢子萌发类型为书带蕨型( Vittaria-type)。孢子萌发后,配子体原始细胞经多次横向分裂形成3~9个细胞的丝状体,丝状体细胞呈圆筒形,壁薄,侧壁向外鼓起,含有颗粒较大且数量较多的叶绿体。15 d左右发育为片状体,片状体多为匙状。25 d左右形成幼原叶体,幼原叶体不对称,配子体发育类型为水蕨型( Ceratopteris-type)。在原叶体发育过程中分枝丝状体非常发达,配子体呈丛状生长,整个发育过程没有毛状体产生。野雉尾金粉蕨的假根为单细胞管状,偶有分支,内无叶绿体。45 d左右精子器开始出现,精子器顶面观近圆形,侧面观为近椭圆形或短柱状。精子器成熟时,盖细胞裂开,精子逸出。60 d左右颈卵器出现,颈卵器比较大,基部略大于顶部,侧面观呈烟囱状,顶面观为铜钱状,颈部由四列细胞构成。90 d左右发育出肉眼可见的幼孢子体。从研究结果看,其配子体发育的特征与凤尾蕨科( Pteridaceae)凤尾蕨属( Pteris L.)相似,支持金粉蕨属归于凤尾蕨科的观点。该研究结果为野雉尾金粉蕨系统学研究提供了配子体发育方面的证据。