| 释义 |
siphono-, a.|ˈsaɪfənəʊ|
Gr. σιϕωνο-, combining form of σίϕων siphon, used in various terms of Zool. and Bot., as ˌsiphonoˈbranchiate n. and a.; siˈphonogam; ˌsiphonoˈgamic a.; siphoˈnogamous a.; siphoˈnogamy; siˈphonoglyph |-glɪf|; ˌsiphonoˈglyphe |-ˈglaɪfiː|; siphoˈnophoran n. and a.; ˈsiphonophore |-fɔə(r)| n. and a.; siphoˈnophorous a.; siˈphonopod; siphoˈnopodous a.; ˈsiphonostele Bot., a stele consisting of a core of pith surrounded by concentric layers of xylem and phloem; so ˌsiphonoˈstelic a.; also (rare) ˈsiphonostely, the state of being or having such a stele; ˌsiphonoˈstomatous a.; ˈsiphonostome; siphoˈnostomous a.; ˌsiphonoˈxanthin (also siphona-), a xanthophyll pigment, C40H56O4, present in certain green algæ; ˌsiphonoˈzooid: (see quots.).
Various other combs. of doubtful currency, such as siphono-cladaceous, -clamydate, -gnathoid, etc., are given in recent Dictionaries.
1842Brande Dict. Sci., etc. 1120 *Siphonobranchiates,..an order of Gastropods, including those in which the branchial cavity terminates in a tube or siphon more or less prolonged, by which the respiratory current of water is received and expelled.
1849Craig, Siphonobranchiate a.
1898tr. Strasburger's Text-Bk. Bot. 431 The pollen-tubes..conduct the two generative cells to the egg-cell. The Phanerogams have accordingly been termed by Engler, *Siphonogams.
1900B. D. Jackson Gloss. Bot. Terms 242/1 *Siphonogamic.
1891Nature 17 Sept. 484 From another point of view karyogamy is..*Siphonogamous: karyogamy is effected by a tubular outgrowth from one or both of the gametes.
1900B. D. Jackson Gloss. Bot. Terms 242/1 *Siphonogamy.
1894Jrnl. Marine Zool. I. 78 The single *siphonoglyph giving attachment to the ventral pair of directive mesenteries.
1883Phil. Trans. CLXXIV. 693 On the Ciliated Groove (*Siphonoglyphe) in the Stomodæum of the Alcyonarians. Ibid. 694, I propose to call this groove ‘the siphonoglyphe’. 1888Rolleston & Jackson Anim. Life 725 [One end of the mouth] leading into well marked grooves strongly ciliated known as gonidial grooves or siphonoglyphes.
Ibid. 775 A *Siphonophoran has been variously regarded (1) as an assemblage of organs, or (2) as a colony of polymorphic zooids. Ibid. 775 note, The Siphonophoran tentacle..is sometimes attached directly to the coenosarc.
1842Brande Dict. Sci., etc. 1120 *Siphonophores,..a name given by Escholtz to an order of Acalephes, to which he refers those species which have no central digestive cavity, but simply isolated tubes. 1883Century Mag. Sept. 733/2 The vapory, translucent siphonophores..lived contentedly in their glass prison.
1884Riverside Nat. Hist. I. 106 The Siphonophore fauna of the Mediterranean Sea.
a1843Encycl. Metrop. VII. 267/1 The *Siphonophorous Order are..distinguished by the absence of any stomach. 1881Encycl. Brit. XII. 555/1 The variously modified units of the siphonophorous colony.
Ibid. XVI. 684/1 In embryo *Siphonopods..the sucker-bearing lobes of the fore-foot are truly podial structures.
Ibid. 669/1 *Siphonopodous Cephalopods in which the inflected lateral margins of the mid-foot are fused so as to form a complete tubular siphon.
1902*Siphonostele [see mesarch 1]. 1969F. E. Round Introd. Lower Plants x. 123 The central tissue in the siphonosteles is often sclerified.
1899E. C. Jeffrey in Mem. Boston Soc. Nat. Hist. V. 160 The two primitive types of stele described above may..be appropriately designated, protostelic and *siphonostelic respectively. 1969F. E. Round Introd. Lower Plants x. 123 A simple stele is formed. This consists either of a stellate mass of xylem surrounded by a few rows of simple phloem cells or, in the aerial parts of Psilotum and Tmesipteris, becoming siphonostelic. 1899E. C. Jeffrey in Mem. Boston Soc. Nat. Hist. V. 160 The primary vascular axes of living Lycopodiales rarely present the phenomena of *siphonostely.
1872H. A. Nicholson Palaeont. 244 In a second group the aperture of the shell is notched in front; and the shell is said to be ‘*siphonostomatous’.
1837Penny Cycl. IX. 460/1 Latreille..admitted into the class Crustacea 12 orders,..the Ostrapods, the Xyphosures, and the *Siphonostomes. 1842Brande Dict. Sci., etc. 1120 Siphonostomes,..a family of Crustaceans, comprehending those which have a siphon-shaped mouth for suction. Ibid., Siphonostomes... By M. de Blainville the term is applied to those gastropods which have the opening of the shell prolonged into a siphon.
a1843Encycl. Metrop. VII. 278/1 All the pieces of the mouth can be accounted for in the *Siphonostomous Order. 1855Ogilvie Suppl., Siphonostomous, a designation of animals with a siphon-shaped mouth for suction.
1949H. H. Strain in Franck & Loomis Photosynthesis in Plants vi. 162 *Siphonaxanthin. Green algae of the order Siphonales yield significant quantities of this ketonic pigment that closely resembles fucoxanthin with respect to spectral absorption properties. 1964Oceanogr. & Marine Biol. II. 217 Within the Chlorophyta, the Siphonales differ from the other members in possessing siphonein and siphonoxanthin. 1973V. J. & D. J. Chapman Algae (ed. 2) vi. 137 The discoid chloroplasts..lack siphonaxanthin so characteristic of the siphonaceous Chlorophyceae.
1881H. N. Moseley Corals in Rep. Sci. Results Voy. Challenger 1873–76 II. 118, I propose to term in the case of Alcyonarians, in which there are two kinds of zooids,..the aborted polyps (zooids of Kölliker) ‘*siphonozooids’. Ibid. 119 The siphonozooid cavities are only about one-fifth the length of the autozooid cavities. 1896tr. Boas' Text Bk. Zool. 114 The constant presence, in various Alcyonarians, of arrested individuals (siphonozooids). |