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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2005
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| Online Access: | https://www.redalyc.org/articulo.oa?id=32777206 |
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Table of Contents:
- Meristematic activity of the Endodermis and the Pericycle in the primary thickening in monocotyledons. Considerations on the "PTM" Rosani C.O. Arruda Nanuza L. de Menezes Delmira C. Silva Gladys F. Melo-De-Pinna Vanessa A. Cardoso Neuza M. Castro Vera L. Scatena Edna Scremin-Dias Multidisciplinaria (Ciencias Naturales y Exactas) Cyperus Zingiber pericycle Echinodorus Lagenocarpus Thispaperproposesanewinterpretationforprimarythickeninginmonocotyledons.Theanatomyofthevegetativeorgansofthefollowingspecieswasexamined:Cephalostemonriedelianus(Rapataceae),Cyperuspapyrus(Cyperaceae),Lagenocarpusrigidus,L.junciformis(Cyperaceae),Echinodoruspaniculatus(Alis-mataceae)andZingiberofficinale(Zingiberaceae).Theendodermiswithmeristematicactivitywasobservedintherootofallthespecies,inthestemofCyperus,CephalostemumandLagenocarpusrigidus,andintheleaftraceofCyperusandleafofEchinodorus.Consideringthecontinuityoftissuesthroughtheroot,stemandleaf,theauthorsconcludethatinthestemthepericycleremainsactivethroughoutthelifeoftheplantasthegeneratorofthevasculartissue.ThePrimaryThickeningMeristemisinfactthepericycleplustheendodermisanditsderivatives(oronlythepericycle).Closetothestemapex,theassemblageofseemstobeauniquemeristem,givingrisetotheinnercortexandvasculartissues. 2005 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32777206 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.77