Banca de DEFESA: JULIANA DE FREITAS ENCINAS DARDENGO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JULIANA DE FREITAS ENCINAS DARDENGO
DATA : 24/02/2024
HORA: 08:00
LOCAL: UNEMAT CAMPUS DE ALTA FLORESTA
TÍTULO:

Genetic diversity, spacial distribuction and leave anatomy of Theobroma L. natural population in the northern of Mato Grosso state

PALAVRAS-CHAVES:

Conservation, Genetic Variability, Amazonia

PÁGINAS: 73
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

The spatial and genetic distribution analysis and the anatomical knowledge of a
species is a very useful tool to understand your ecological behavior because it
provides information that underlie management strategies and influence the
population structure. The present study aimed to study the horizontal structure
of the species Theobroma speciosum (cacauhy) and Theobroma subincanum
(cupui) and also characterize the genetic diversity and anatomy of leaves of T.
speciosum, recording the structural differences observed between sun leaves
and shade leaves. The genetic diversity detected was spatially structured within
the population, and that the closer the trees, more is the probability of being
closely related. In relation to spatial distribution, the T. speciosum individuals
showed aggregated distribution pattern, while T. subincanum presented a
random pattern. The diameter distribution of T. speciosum followed a
distribution in the form of inverted "J", behavior expected for a forest
environment with low anthropic pressure, as T. subincanum not followed the
same pattern, however the species proved to be well established in the area,
with a significant number of individuals in all diameter classes. The constitution
of the sun and shade leaves of T. speciosum mesophyll varied with the
environment. Plants exposed to full sunlight showed longer cells in the palisade
parenchyma, spongy parenchyma also showed many layers of overlapping
cells, whereas shade leaves showed cells with many intercellular spaces. Were
observed significant anatomical changes caused by variations of light intensity
on the leaves, which revealed a large adaptive capacity of T. speciosum. Thus,
the results indicate the importance of conservation areas established in order to
safeguard the natural environment from the pressures of different anthropic
actions, and also the need for studies in the region of the Amazon biome.

MEMBROS DA BANCA:
Presidente - 32143101 - ANA APARECIDA BANDINI ROSSI
Externo à Instituição - MAGALI GONCALVES GARCIA - UFPA
Interno - 70141009 - OSCAR MITSUO YAMASHITA