6 documents found, page 1 of 1
The role of carbohydrates in seed germination and seedling establishment of Him...
Ferreira, Cristiane Silva; Piedade, Maria Teresa Fernandez; Tiné, Marco Aurélio Silva; Rodrigo Rossatto, Davi; Parolin, Pia; Silveira Buckeridge, MarcosBackground and Aims In the Amazonian floodplains plants withstand annual periods of flooding which can last 7 months. Under these conditions seedlings remain submerged in the dark for long periods since light penetration in the water is limited. Himatanthus sucuuba is a tree species found in the 'várzea' (VZ) floodplains and adjacent non-flooded 'terra-firme' (TF) forests. Biochemical traits which enhance flood...
Seed germination and seedling development in response to submergence in tree sp...
Melo, Risolandia Bezerra de; Franco, Augusto C.; Silva, Clovis Oliveira; Piedade, Maria Teresa Fernandez; Ferreira, Cristiane SilvaSuccessful germination and seedling establishment are crucial steps for maintenance and expansion of plant populations and recovery from perturbations. Every year the Amazon River and its tributaries overflow and flood the adjacent forest, exerting a strong selective pressure on traits related to seedling recruitment.We examined seed characteristics, stored reserves, germination, seedling development and surviv...
Flood tolerance in two tree species that inhabit both the Amazonian floodplain ...
Pires, Hérica Ribeiro Almeida; Franco, Augusto C.; Piedade, Maria Teresa Fernandez; Scudeller, Veridiana Vizoni; Kruijt, Bart J.Comparing plants of the same species thriving in flooded and non-flooded ecosystems helps to clarify the interplay between natural selection, phenotypic plasticity and stress adaptation. We focussed on responses of seeds and seedlings of Genipa americana and Guazuma ulmifolia to substrate waterlogging or total submergence. Both species are commonly found in floodplain forests of Central Amazonia and in seasonal...
Anatomical and morphological modifications in response to flooding by six Cerra...
Oliveira, Adilson Serafim de; Ferreira, Cristiane Silva; Ribeiro, Dalva Graciano; Franco, Augusto CésarWetlands are common in the Cerrado (Brazilian savannas) biome, however flooding of these wetlands impairs growth and development of most plants. We evaluated flood tolerance of typical Cerrado trees. Seedlings of Aspidosperma macrocarpon (Apocynaceae), Tabebuia rosea (Bignoniaceae), Handroanthus chrysotrichus (Bignoniaceae), Myracrodruon urundeuva (Anacardiaceae), Kielmeyera coriacea (Calophyllaceae) and Copaif...
Anatomia da lâmina foliar de onze espécies lenhosas dominantes nas savanas de R...
Ferreira, Cristiane Silva; Carmo, William Silva do; Ribeiro, Dalva Graciano; Oliveira, Jane Maria Franco de; Melo, Risolandia Bezerra deO conhecimento da anatomia da folha é crucial para o entendimento da adaptação das plantas ao ambiente. O objetivo deste estudo foi descrever a anatomia da lâmina foliar de 11 espécies lenhosas, frequentes nas savanas do extremo norte da Amazônia, com ênfase na identificação de atributos adaptativos a ecossistemas abertos, sujeitos a forte insolação e déficit hídrico sazonal. Amostras de folhas foram coletadas ...
Seed germination and seedling development in response to submergence in tree sp...
Melo, Risolandia Bezerra de; Franco, Augusto César; Silva, Clovis Oliveira; Piedade, Maria Teresa Fernandez; Ferreira, Cristiane SilvaSuccessful germination and seedling establishment are crucial steps for maintenance and expansion of plant populations and recovery from perturbations. Every year the Amazon River and its tributaries overflow and flood the adjacent forest, exerting a strong selective pressure on traits related to seedling recruitment. We examined seed characteristics, stored reserves, germination, seedling development and survi...