TITLE

Pollen of Bauhinia L. and Phanera Lour. (Leguminosae-Caesalpinioideae) from the Brazilian Caatinga

AUTHOR(S)
Dos Santos, Francisco de Assis Ribeiro; de Matos Novaes, Danovan; de Queiroz, Luciano Paganucci
PUB. DATE
July 2012
SOURCE
American Journal of Plant Sciences;Jul2012, Vol. 3 Issue 7, p909
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A study of pollen morphology, in species of the genera Bauhinia and Phanera (Leguminosae-Caesalpinioideae) which occur in the Brazilian caatinga, is presented. The pollen was examined using light and scanning electron microscopy. Samples were prepared by the KOH method; non-treated pollen grains were examined by scanning electron microscopy. Pollen grains in Bauhinia species (11) are colpate, but porate in B. cheilantha and B. subclavata. All four species of Phanera present colporate pollen grains; P. outimouta is the only to have syncolporate pollen grains. Species of both genera present heteromorphism in the number of apertures. Excepting P. outimouta whose pollen grains are psilate, all species in the two genera present supratectal processes (gemmae/clavae), however the exine in the two genera are different- semitectate, reticulate in Bauhinia species, and tectate, rugulate (or psilate) in Phanera ones. Pollen characters support the segregation of Phanera from Bauhinia.
ACCESSION #
80417811

 

Related Articles

  • tripping mechanism:. Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects;2003, p420 

    A definition of the term "tripping mechanism" is presented. It refers to a pollen dispersal mechanism of legumes whereby the staminal column is sprung free of the keel and exposed. The mechanism can be initiated by hand to imitate insect activity an

  • Pollen types in Southern New World Convolvulaceae and their taxonomic significance. Tellería, M.C.; Daners, G. // Plant Systematics & Evolution;Nov2003, Vol. 243 Issue 1/2, p99 

    Pollen morphology from 143 collections representing 11 genera and 75 species of native South American Convolvulaceae was analyzed with LM and SEM. Exine structure and sculpture allow to distinguish three main types, in two of these types some subtypes were recognized. 1) Tectate,...

  • MORFOLOGÍA DEL POLEN DE MIMOSA SERIE QUADRIVALVES (LEGUMINOSAE, MIMOSOIDEAE). Flores-Cruz, María; Santana-Lira, Hugo D.; Martínez-Bernal, Angélica; Fraile, Ma. Eugenia // Acta Botanica Mexicana;2006, Issue 77, p1 

    The morphology of acetolized pollen grains of 16 taxa and two variants of the genus Mimosa, section Batocaulon, series Quadrivalves, is described by means of light and scanning electron microscopy. All members of the Quadrivalves series have pollen grains grouped in crossed, slightly compressed,...

  • Causes of Low Fruit and Seed Set in Bird-Pollinated Anagyris foetida (Leguminosae): Pollen Limitation and Other Extrinsic Factors. Valtue�a, Francisco; Ortega-Olivencia, Ana; Rodr�guez-Ria�o, Tom�s; L�pez, Josefa // Folia Geobotanica;Mar2010, Vol. 45 Issue 1, p77 

    We studied the extrinsic factors behind the low number of offspring in two populations of Anagyris foetida, a bird-pollinated leguminous shrub of the Mediterranean region. Fruit initiation was pollen limited, but fruit maturation was not. This limiting effect varied between flowering seasons and...

  • Breeding System in a Population of Trigonella balansae (Leguminosae). NAIR, RAMAKRISHNAN M.; DUNDAS, IAN S.; WALLWORK, MEREDITH; VERLIN, DAWN C.; WATERHOUSE, LYN; DOWLING, KATE // Annals of Botany;Dec2004, Vol. 94 Issue 6, p883 

    • Background and Aims Although some taxonomic studies in the genus Trigonella have been conducted, there has been no concerted effort to study the breeding system. This paper examines the floral structure and pollination system in a population of T. balansae, an annual pasture...

  • Cytochemical and ultrastructural observations of anthers and pollen grains in Lathyrus undulatus Boiss. Vardar, Fılız; Ünal, Meral // Acta Botanica Croatica;Jan2011, Vol. 70 Issue 1, p53 

    In Lathyrus undulatus Boiss. (Fabaceae), the young microspore stage of anther development was characterized by the enlarged secretory tapetal cells, which presented an intense reaction with regard to protein, insoluble polysaccharides and lipids. At bicellular pollen stage, the middle layer and...

  • A comparative study of the reproductive character and genetic diversity of an autogamous Tylophora matsumurae and its progenitor Tylophora tanakae (Apocynaceae-Asclepiadoideae). Yamashiro, T.; Maki, M. // Plant Systematics & Evolution;Nov2005, Vol. 256 Issue 1-4, p55 

    Reproductive character and genetic diversity were investigated for an autogamous species of Tylophora matsumurae endemic to the Ryukyu Islands and its progenitor species T. tanakae. Approximately one-fourth of bagged flowers set fruits in T. matsumurae, although no fruits were obtained from...

  • Comparative pollen morphology of annual Trigonella L. (Fabaceae) in Turkey. Pinar, N.; Akan, Hasan; Ceter, Talip; Aytac, Zeki; Ekici, Murat; Acar, Aydan; Akdogan, Selin // Plant Systematics & Evolution;Apr2014, Vol. 300 Issue 4, p689 

    Pollen morphology of 38 Trigonella species was investigated with light microscopies and scanning electron microscopies. Pollen slides were prepared using Wodehouse technique. The pollen grains of Trigonella members are radially symmetrical and isopolar, their outlines are oblong in equatorial...

  • pollen sterility:. Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects;2003, p327 

    A definition of the term "pollen sterility" is presented, which refers to pollen that is not able to fertilize an egg cell.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics