title: Phenotypic plasticity of Neonotonia wightii and Pueraria phaseoloides grown under different light intensities.
abstract: Plants have the ability to undergo morphophysiological changes based on availability of light. The present study evaluated biomass accumulation, leaf morphoanatomy and physiology of Neonotonia wightii and Pueraria phaseoloides grown in full sunlight, as well as in 30% and 50% shade. Two assays were performed, one for each species, using a randomized block design with 10 replicates. A higher accumulation of fresh mass in the shoot of the plants was observed for both species under cultivation in 50% shade, while no differences were detected between the full sunlight and 30% shade. N. wightii and P. phaseoloides showed increase in area and reduction in thickness leaf when cultivated in 50% shade. There were no changes in photosynthetic rate, stomatal conductance, water use efficiency and evapotranspiration of P. phaseoloides plants because growth environment. However, the shade treatments caused alterations in physiological parameters of N. wightii. In both species, structural changes in the mesophyll occurred depending on the availability of light; however, the amount of leaf blade tissue remained unaltered. Despite the influence of light intensity variation on the morphophysiological plasticity of N. wightii and P. phaseoloides, no effects on biomass accumulation were observed in response to light.
authors.affiliation: Departamento de Biologia e Manejo de Plantas Daninhas, Universidade Federal de Minas Gerais, Montes Claros, MG, Brasil.
authors.forename: Leonardo D T
authors.initials: LD
authors.lastname: Santos
authors.affiliation: Departamento de Biologia e Manejo de Plantas Daninhas, Universidade Federal de Minas Gerais, Montes Claros, MG, Brasil.
authors.forename: Leandro R
authors.initials: LR
authors.lastname: Da Cruz
authors.affiliation: Departamento de Biologia e Manejo de Plantas Daninhas, Universidade Federal de Minas Gerais, Montes Claros, MG, Brasil.
authors.forename: Samuel A
authors.initials: SA
authors.lastname: Dos Santos
authors.affiliation: Departamento de Biologia e Manejo de Plantas Daninhas, Universidade Federal de Minas Gerais, Montes Claros, MG, Brasil.
authors.forename: Bruno F
authors.initials: BF
authors.lastname: Sant'anna-Santos
authors.affiliation: Departamento de Biologia e Manejo de Plantas Daninhas, Universidade Federal de Minas Gerais, Montes Claros, MG, Brasil.
authors.forename: Izabela T
authors.initials: IT
authors.lastname: Dos Santos
authors.affiliation: Departamento de Biologia e Manejo de Plantas Daninhas, Universidade Federal de Minas Gerais, Montes Claros, MG, Brasil.
authors.forename: Ariane M
authors.initials: AM
authors.lastname: De Oliveira
authors.affiliation: Departamento de Biologia e Manejo de Plantas Daninhas, Universidade Federal de Minas Gerais, Montes Claros, MG, Brasil.
authors.forename: Rodrigo E
authors.initials: RE
authors.lastname: Barros
authors.affiliation: Departamento de Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brasil.
authors.forename: Márcia V
authors.initials: MV
authors.lastname: Santos
authors.affiliation: Departamento de Biologia e Manejo de Plantas Daninhas, Universidade Federal de Minas Gerais, Montes Claros, MG, Brasil.
authors.forename: Rodrigo M
authors.initials: RM
authors.lastname: Faria
mesh_terms: D000222:Adaptation, Physiological; D018533:Biomass; D007887:Fabaceae / Q000145:classification / Q000254:growth & development / Q000502:physiology; D010641:Phenotype; D010788:Photosynthesis / Q000502:physiology; D029908:Pueraria / Q000254:growth & development* / Q000502:physiology; D013472:Sunlight