1999
DOI: 10.1590/s0100-84041999000300004
|View full text |Cite
|
Sign up to set email alerts
|

Estrutura do tegumento seminal de quatro espécies de Leguminosae (Caesalpinioideae), ocorrentes numa área de caatinga (PE ­ Brasil)

Abstract: -(Structure of the seed coat in four species of the Leguminosae (Caesalpinioideae), occuring in the caatinga (PEBrazil)). According to this paper, the seminal coats of Caesalpinia ferrea, C. pyramidalis, Senna martiana and S. spectabilis var. excelsa were composed of one layer of macrosclereids, coated by a cuticle and a subcuticle layer, followed by a layer of osteosclereids, sclerified parenchyma and another inner layer of osteosclereids. The impermeability of these seed seminal coats is probably restricted … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

1
10
0
2

Year Published

2007
2007
2023
2023

Publication Types

Select...
8

Relationship

0
8

Authors

Journals

citations
Cited by 9 publications
(13 citation statements)
references
References 4 publications
1
10
0
2
Order By: Relevance
“…Subsequently, these seeds were longitudinally sectioned and examined with a stereoscopic microscope to determine the limit penetration of the dye which has molecular weight close to that of water (Melo-Pinna et al, 1999).…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Subsequently, these seeds were longitudinally sectioned and examined with a stereoscopic microscope to determine the limit penetration of the dye which has molecular weight close to that of water (Melo-Pinna et al, 1999).…”
Section: Methodsmentioning
confidence: 99%
“…The characterization of Fabaceae's morphological http://dx.doi.org/10.1590/2317-1545v37n4151436 and anatomical structures of fruits, seeds and seedlings is the goal of several studies aiming to solve taxonomic problems, subsidize species identification, and understand ecological and physiological strategies, among others (Melo-Pinna et al, 1999;Barroso et al, 2007;Silva and Môro, 2008). Seeds internal and external morphology, combined with seedlings observations, allow the identification of structures, offering, in the laboratory, subsidies for the correct interpretation of germination, identification and certification tests of physiological quality.…”
Section: Introductionmentioning
confidence: 99%
“…This light line was lost after sulfuric acid treatment, allowing water to penetrate the seed, which indicates a dormancy break followed by germination after 24 h. This has been observed in other species of Leguminosae (Caesalpinioideae). 28 A well-developed endosperm, consisting largely of the storage carbohydrate (galactomannan), lies between the seed coat and the cotyledons in mesquite seeds (Fig. 1B), and the cells located in this region are PAS-positive.…”
Section: Resultsmentioning
confidence: 99%
“…A dormência tegumentar descrita por Cantliffe et al (1980) e Carpanezzi & Fowler (1997 para as sementes de espécies de Indigofera deve-se provavelmente à presença de camadas de macroesclereídes e osteoesclereídes na testa, principalmente na região hilar, que atuariam como barreira à entrada de água e oxigênio para a germinação das sementes (Melo-Pinna et al 1999, Ferreira & Borghetti 2004. Tal dormência pode ser quebrada após a imersão das sementes em água quente (Carpanezzi & Fowler 1997), o que, no cerrado, ambiente de ocorrência natural destas espécies, deve ocorrer após a elevação de temperatura ocasionada por queimadas periódicas típicas desta formação vegetacional.…”
Section: Discussionunclassified