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Kohleria eriantha has rhizomes which are underground stems with buds enclosed by modified leaves, that store starch. The buds of this rhizome can develop in two morphological patterns: an aerial shoot (similar to the mother plant) or a rhizome, depending on the water level present in the substrate. Development of the shoot was inhibited by low water availability (1 mL) in the substrate. It was verified that ethylene and ABA were involved in controlling the development of the rhizome pattern under low water availability. Treatments with ethrel, PEG and ABA induced shoot development whereas treatments with AgNO3 or AVG inhibited shoot development. Increased ethylene and ABA were observed under conditions that inhibited shoot development. Moreover, it is suggested that ABA may induce the production of ethylene in the sections of the rhizome under low water availability. Kohleria eriantha possui rizomas subterrâneos, caule com gemas envoltas por folhas modificadas que armazenam amido. As gemas desse rizoma podem-se desenvolver em dois padrões morfológicos: o padrão parte aérea (semelhante à planta mãe) ou um rizoma dependendo do nível de água do substrato. O desenvolvimento do padrão parte aérea foi inibido pela baixa disponibilidade de água do substrato (1 mL). Verificou-se que o etileno e o ABA estavam envolvidos com o controle do desenvolvimento do padrão rizoma na ausência ou baixa disponibilidade hídrica. Tratamentos com ethrel, PEG e ABA induziram o desenvolvimento do padrão parte aérea, enquanto os tratamentos com AVG e AgNO3 inibiram o desenvolvimento do padrão parte aérea. Observaram-se aumento de etileno e ABA sob condições que inibiram o desenvolvimento da parte aérea. Sugere-se, também, que ABA pode induzir a produção de etileno em seções do rizoma na ausência ou em baixa disponibilidade hídrica.

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2014-02-26T17:17:28Z No. of bitstreams: 1 WOS000187662200011.pdf: 2164488 bytes, checksum: c21964002df4b962e8fa000bd7f9a700 (MD5) Made available in DSpace on 2014-02-26T17:17:28Z (GMT). No. of bitstreams: 1 WOS000187662200011.pdf: 2164488 bytes, checksum: c21964002df4b962e8fa000bd7f9a700 (MD5) Previous issue date: 2003-11-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:24:15Z No. of bitstreams: 1 WOS000187662200011.pdf: 2164488 bytes, checksum: c21964002df4b962e8fa000bd7f9a700 (MD5) Made available in DSpace on 2014-05-20T15:24:15Z (GMT). No. of bitstreams: 1 WOS000187662200011.pdf: 2164488 bytes, checksum: c21964002df4b962e8fa000bd7f9a700 (MD5) Previous issue date: 2003-11-01 After thirty two years in Brazil and retired from Universidade Estadual de Campinas the author wishes to present this account, a summary of a large part of the research in synthetic methodology developed by the research groups of Albert J. Kascheres and the author at Universidade Estadual de Campinas Chemistry Institute. Contributions have been made to the area of enaminones, diazocarbonyls, cyclopropenones and azirines. Univ Estadual Campinas, Inst Quim, BR-13083970 Campinas, SP, Brazil Univ Estadual Paulista, Inst Ciências Saude, BR-13008705 Sorocaba, SP, Brazil Univ Estadual Paulista, Inst Ciências Saude, BR-13008705 Sorocaba, SP, Brazil