海綿骨針
骨針（英語：spicules）是多數海綿（多孔動物門）經生物礦化產生的構造，提供結構支持與防禦的功能[1]。四大類群的海綿中有三者（尋常海綿綱、六放海綿綱與同骨海綿綱）的骨針成分為非晶質的矽[2]，鈣質海綿綱的骨針成分則為碳酸鈣[3]。骨針的大小與形狀因海綿種類不同而異，常作為分類依據[4]。
形成 编辑
（A）海綿骨針於中質層合成： AI：造骨細胞內軸絲（AF）形成；AII：骨針成長；AIII：兩細胞生成的骨針相互連接；AIV：成熟骨針在海綿中轉移位置
（B）海綿死亡、組織分解
（C）脫落的海綿組織
（D）脫落的骨針
骨針是由海綿中質層的造骨細胞合成[5][6]，受基因調控[7]。此類細胞中可生成蛋白質組成的軸絲[8]，為骨針的軸心結構，隨後於其上生成矽或碳酸鈣等礦物，軸絲的大小與形狀將決定骨針的形狀[9]。
參考文獻 编辑
- ^ Jones, Adam C.; Blum, James E.; Pawlik, Joseph R. Testing for defensive synergy in Caribbean sponges: Bad taste or glass spicules?. Journal of Experimental Marine Biology and Ecology. 2005-08-08, 322 (1): 67–81. ISSN 0022-0981. S2CID 85614908. doi:10.1016/j.jembe.2005.02.009.
- ^ Hooper, John N. A.; Van Soest, Rob W. M. Systema Porifera. A Guide to the Classification of Sponges. Systema Porifera. 2002: 1–7. ISBN 978-0-306-47260-2. doi:10.1007/978-1-4615-0747-5_1.
- ^ Rossi, Andre L.; Campos, Andrea P.C.; Barroso, Madalena M.S.; Klautau, Michelle; Archanjo, Bráulio S.; Borojevic, Radovan; Farina, Marcos; Werckmann, Jacques. Long-range crystalline order in spicules from the calcareous sponge Paraleucilla magna (Porifera, Calcarea). Acta Biomaterialia. 2014, 10 (9): 3875–3884. PMID 24487057. doi:10.1016/j.actbio.2014.01.023.
- ^ 4.0 4.1 Łukowiak, Magdalena. Utilizing sponge spicules in taxonomic, ecological and environmental reconstructions: A review. PeerJ. 2020, 8: e10601. PMC 7751429
. PMID 33384908. doi:10.7717/peerj.10601.
- ^ Custódio, Márcio; Hajdu, Eduardo; Muricy, Guilherme. In vivo study of microsclere formation in sponges of the genus Mycale (Demospongiae, Poecilosclerida). Zoomorphology. 2002, 121 (4): 203–211. S2CID 39893025. doi:10.1007/s00435-002-0057-9.
- ^ Müller, Werner E. G.; Rothenberger, Matthias; Boreiko, Alexandra; Tremel, Wolfgang; Reiber, Andreas; Schröder, Heinz C. Formation of siliceous spicules in the marine demosponge Suberites domuncula. Cell and Tissue Research. 2005, 321 (2): 285–297. PMID 15947968. S2CID 12720013. doi:10.1007/s00441-005-1141-5.
- ^ Krasko, Anatoli; Lorenz, Bernd; Batel, Renato; Schröder, Heinz C.; Müller, Isabel M.; Müller, Werner E. G. Expression of silicatein and collagen genes in the marine sponge Suberites domuncula is controlled by silicate and myotrophin. European Journal of Biochemistry. 2000, 267 (15): 4878–4887. PMID 10903523. doi:10.1046/j.1432-1327.2000.01547.x.
- ^ Shimizu, K.; Cha, J.; Stucky, G. D.; Morse, D. E. Silicatein : Cathepsin L-like protein in sponge biosilica. Proceedings of the National Academy of Sciences. 1998, 95 (11): 6234–6238. PMC 27641 . PMID 9600948. doi:10.1073/pnas.95.11.6234 .
- ^ Pisera, Andrzej. Some aspects of silica deposition in lithistid demosponge desmas. Microscopy Research and Technique. 2003, 62 (4): 312–326. PMID 14534905. S2CID 26495972. doi:10.1002/jemt.10398.
