標(biāo)題: Titlebook: Advances in the Biology of Turbellarians and Related Platyhelminthes; Proceedings of the F Seth Tyler Conference proceedings 1986 Dr W. Jun [打印本頁] 作者: implicate 時間: 2025-3-21 19:05
書目名稱Advances in the Biology of Turbellarians and Related Platyhelminthes影響因子(影響力)
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書目名稱Advances in the Biology of Turbellarians and Related Platyhelminthes被引頻次
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書目名稱Advances in the Biology of Turbellarians and Related Platyhelminthes讀者反饋
書目名稱Advances in the Biology of Turbellarians and Related Platyhelminthes讀者反饋學(xué)科排名
作者: 我邪惡 時間: 2025-3-21 23:23
An ultrastructural and cytochemical study of the digestive system in , (Turbellaria, Acoela)The central parenchyma in . consists of multifunctional cells. These cells digest food material intracellularly, can effect extracellular digestion through release of digestive enzymes by cell lysis and clasmatosis, and synthesize reserve nutritional substances.作者: 不幸的人 時間: 2025-3-22 04:08
Overview: 978-94-009-4810-5作者: 龍卷風(fēng) 時間: 2025-3-22 07:31 作者: 轎車 時間: 2025-3-22 09:26
Dr W. Junk Publishers, Dordrecht 1986作者: 入伍儀式 時間: 2025-3-22 13:26 作者: handle 時間: 2025-3-22 17:44
Jerry J. Sweet,Cynthia Westergaardn those groups where these systems and mechanisms are evolutionarily most primitive. Here, such variety can involve the basic body plan of a given phylum and the types of morphogenesis characteristic of it. This correlation provides a new criterion of evolutionary primitive-ness, namely, the criteri作者: 對待 時間: 2025-3-22 22:59 作者: BOOST 時間: 2025-3-23 01:37
Contemporary Approaches to Outdoor Learningoon of the Nemertodermatida, a group of primitive flatworms, indicates that the Platyhelminthes evolved from forms characterized by the primitive type of metazoan sperm and by the primitive mode of fertilization, implying the release of sperm freely into sea water..The occurrence of aberrant types o作者: decode 時間: 2025-3-23 09:12 作者: 母豬 時間: 2025-3-23 12:19 作者: Common-Migraine 時間: 2025-3-23 15:43 作者: reflection 時間: 2025-3-23 19:12 作者: 叢林 時間: 2025-3-23 22:44 作者: paltry 時間: 2025-3-24 03:43 作者: 俗艷 時間: 2025-3-24 07:56 作者: 空洞 時間: 2025-3-24 10:59
https://doi.org/10.1007/978-3-319-72185-9alians. The polyclads are of particular interest because they provide a link between the regulative development of acoels and the determinative development of annelids and molluscs. Single blastomeres were deleted at the two- and four-cell stages by puncture through the eggshell membrane with tungst作者: adroit 時間: 2025-3-24 15:24 作者: 祖?zhèn)?nbsp; 時間: 2025-3-24 22:35
https://doi.org/10.1007/978-3-031-32346-1as well as secretions of shell glands (SGS), play roles in eggshell formation. As the oocytes pass through the portion of the female tract where the shell glands open, they are surronded by a two-layered envelope of SGS. This envelope prevents the dispersion of SFGs discharged after oviposition, and作者: Cerebrovascular 時間: 2025-3-25 00:01 作者: 下船 時間: 2025-3-25 06:23
Developments in Hydrobiologyhttp://image.papertrans.cn/a/image/150230.jpg作者: Minatory 時間: 2025-3-25 08:24 作者: Ancestor 時間: 2025-3-25 12:34 作者: 從容 時間: 2025-3-25 18:40
The phylogenetic significance of sperm morphology in the Platyhelminthesevolution of ‘higher’ metazoans from acoels related to the recent Acoela seems highly improbable..The ultrastructure of the spermatozoa of the parasitic groups of flatworms (Monogenea, Digenea, Cesto-da) is very similar to that found in the Kalyptorhynchia, a further indication that the parasitic gr作者: originality 時間: 2025-3-25 23:21 作者: 神秘 時間: 2025-3-26 00:57
Embryology of the Turbellaria and its phylogenetic significance is established by the occurrence of quartet 4d spiral cleavage in one neoophoran order, and of both quartet spiral cleavage and . in different species of a second neoophoran order. The epibolic gastrulation of polyclads is described as primitive for the Turbellaria because of its similarity to that作者: 狂怒 時間: 2025-3-26 07:06
Comments on a phylogenetic system of the Platyhelminthes作者: BRAND 時間: 2025-3-26 10:59
Ultrastructure of the frontal organ in , and , spp.: significance for models of the turbellarian arc作者: HAVOC 時間: 2025-3-26 14:16 作者: Urea508 時間: 2025-3-26 20:29 作者: 必死 時間: 2025-3-27 00:10
https://doi.org/10.1057/978-1-137-59783-0rate evolutionary capacity levels and to describe the possible origin of a number of invertebrate groups from various levels and their inter-relationships. My analysis on the basis of evolutionary capacity levels suggests that the deuterostomes originated early (very likely before mollusks and annel作者: entail 時間: 2025-3-27 03:03 作者: impaction 時間: 2025-3-27 05:34
Contemporary Approaches to Outdoor Learningevolution of ‘higher’ metazoans from acoels related to the recent Acoela seems highly improbable..The ultrastructure of the spermatozoa of the parasitic groups of flatworms (Monogenea, Digenea, Cesto-da) is very similar to that found in the Kalyptorhynchia, a further indication that the parasitic gr作者: arthroplasty 時間: 2025-3-27 09:55 作者: FLUSH 時間: 2025-3-27 17:34 作者: faucet 時間: 2025-3-27 20:12
The major parasitic platyhelminth classes — progressive or regressive evolutionggests there are various ‘evolutionary capacity levels’ occupied by major taxa. Two groups that are at the same evolutionary capacity level probably originated in common within that level, which in turn is often shared with several other groups. Morphogenesis by invagination is characteristic of an 作者: Dri727 時間: 2025-3-28 00:23
Initial morphological diversity as a criterion in deciphering turbellarian phylogenn those groups where these systems and mechanisms are evolutionarily most primitive. Here, such variety can involve the basic body plan of a given phylum and the types of morphogenesis characteristic of it. This correlation provides a new criterion of evolutionary primitive-ness, namely, the criteri作者: 類型 時間: 2025-3-28 03:11 作者: 宣稱 時間: 2025-3-28 10:18 作者: DNR215 時間: 2025-3-28 14:14 作者: 尖牙 時間: 2025-3-28 14:46
Frontal organs in the Acoelomorpha (Turbellaria): Ultrastructure and phylogenetic significanceians as being a collection of two to several large mucus-secreting glands whose necks emerge together through a frontal pore at the exact apical pole of the body, i.e. at the point where the pattern of epidermal ciliary rootlets converges. Representatives that we have studied of each of the acoel fa作者: NAVEN 時間: 2025-3-28 22:46
On the evolution of central nervous systems: Implications from polyclad turbellarian neurobiologyty of cell types including multipolar heteropolar and bipolar neurons. These cell types are rare in other invertebrate ganglia. Individual neurons also contain a variety of different ion channels. both spiking and nonspiking neurons are found. Some neurons are mul-timodal interneurons. Habituation a作者: Nucleate 時間: 2025-3-29 02:14
Comparative characterization of the nervous system of the Turbellariastem in various representatives of the class. The most primitive state, found in the Acoela, is predominantly plexiform with a varying number of longitudinal trunks. Three, and in some cases four, longitudinal trunks are found in the Proseriata and Temnocephalida. Commissures appear in the Macrostom作者: exceptional 時間: 2025-3-29 05:42
Neuropeptides in free-living and parasitic flatworms (Platyhelminthes). An immunocytochemical studyhemical method, with the use of antisera to the neuropeptides FMRF- amide, vasotocin, leu-enkephalin, met-enkephalin, neurotensin, somatostatin, and VIP, and to the bioamine serotonin. Anti-FMRF-amide positive perikarya and fibers occurred in all species, while the occurrence of the vertebrate brain作者: Glucose 時間: 2025-3-29 10:44 作者: DUCE 時間: 2025-3-29 14:09
Embryology of the Turbellaria and its phylogenetic significanceelation to the phylogeny of the Turbellaria. Eggshell granules, which have been demonstrated to occur in the oocytes of entolecithal eggs and the yolk cells of ectolecithal eggs, are compared among species, and their potential value as a taxonomic character is discussed. The quartet 4d spiral cleava作者: 樹木心 時間: 2025-3-29 16:19
Experimental evidence for the origins of determinative development in the polyclad turbellariansalians. The polyclads are of particular interest because they provide a link between the regulative development of acoels and the determinative development of annelids and molluscs. Single blastomeres were deleted at the two- and four-cell stages by puncture through the eggshell membrane with tungst作者: Amendment 時間: 2025-3-29 21:43 作者: Recess 時間: 2025-3-30 03:10
Eggshell formation in polyclads (Turbellaria)as well as secretions of shell glands (SGS), play roles in eggshell formation. As the oocytes pass through the portion of the female tract where the shell glands open, they are surronded by a two-layered envelope of SGS. This envelope prevents the dispersion of SFGs discharged after oviposition, and作者: obstruct 時間: 2025-3-30 08:07
Fine-structural characteristics of female and male germ cells in Proseriata Otoplanidae (Platyhelminng platyhelminths having ectolecithal eggs..In these species, encompassed in the taxon Proseriata Lithophora, insemination of the germocytes occurs within the germaria. A sperm cell, that has penetrated a germocyte differs in special features from mature male germ cells found in the testes, in parts作者: Offset 時間: 2025-3-30 10:40 作者: 防銹 時間: 2025-3-30 15:49
https://doi.org/10.1007/978-1-0716-2039-7tive immunoreactivity was found in the brain and gut of ., and in the CNS and the peripheral nerve net of the cestodes. We suggest that the brain-gut peptides of free-living flatworms act on the subtegumental region in the cestodes, which lack a gut but absorb their nutrients directly through the tegument.作者: CANE 時間: 2025-3-30 19:20
https://doi.org/10.1007/978-3-319-72185-9f larval eyes was a particularly useful character in revealing mosaicism. This study establishes the polyclad embryo as determinative, but with important cell interactions also occurring during early development, and provides evidence that mosaicism became associated with spiral cleavage in the quartet form during the evolution of the Turbellaria.作者: 廣大 時間: 2025-3-30 22:46 作者: 缺陷 時間: 2025-3-31 03:29
Jerry J. Sweet,Cynthia Westergaardere are a few groups that also are archaic in some few features (above all, the Catenulida), although on the whole they are more advanced than the Acoela. The Turbellaria as a whole is notable for its morphological diversity in comparison with other classes of the Scolecida.作者: 種族被根除 時間: 2025-3-31 05:26 作者: 吼叫 時間: 2025-3-31 12:23 作者: emission 時間: 2025-3-31 17:24 作者: 埋葬 時間: 2025-3-31 18:38
On the evolution of central nervous systems: Implications from polyclad turbellarian neurobiologybrain’s main functions are the coordination and sequencing of peripherally placed reflexes. Even at this stage, however, the brain already contains cells that seem as advanced as those found in higher organisms.作者: ABOUT 時間: 2025-3-31 22:52
Comparative characterization of the nervous system of the Turbellariat of the nervous system in Müller’s larvae of polyclads shows it is of an orthogonal type comparable to other platyhelminths. Transition to parasitism is accompanied by some progressive transformations in the structure of the nervous system.作者: cipher 時間: 2025-4-1 02:00
Phylogenetic relationships of the Temnocephaloidea (Platyhelminthes)m neighboring parenchymal cells in a fashion similar to paren-chymal structure in the Monogenea and Digenea. The spermatozoa have a pair of free 9+1 flagella and contain aligned dense bodies. The Temnocephaloidea is evidently derived from an early rhabdocoel-turbellarian-like ancestor.作者: Restenosis 時間: 2025-4-1 09:32 作者: Exposure 時間: 2025-4-1 13:09
Experimental evidence for the origins of determinative development in the polyclad turbellariansf larval eyes was a particularly useful character in revealing mosaicism. This study establishes the polyclad embryo as determinative, but with important cell interactions also occurring during early development, and provides evidence that mosaicism became associated with spiral cleavage in the quartet form during the evolution of the Turbellaria.作者: 使隔離 時間: 2025-4-1 15:34
Eggshell formation in polyclads (Turbellaria)ts of the SFGs and the parts of the eggshell indicate that discrete parts of the shell are derived from specific SFG components. Hardening of the eggshell and egg-plate matrix takes place through primary tanning of a sclerotin-like protein.作者: sterilization 時間: 2025-4-1 21:06
https://doi.org/10.1007/978-1-349-04184-8as where a more integrated approach would be beneficial. This is done with particular reference to the endosymbiont genus . which belongs to the Turbellaria but which functionally has more similarities to the parasitic platyhelminths especially with regard to the host-finding requirement of the larval stages.
