Results 31 to 40 of about 554 (149)

Microsporogenesis, microgametogenesis and pollen morphology of Passiflora spp. (Passifloraceae) [PDF]

open access: yesBotanical Journal of the Linnean Society, 2002
Microsporogenesis, microgametogenesis and pollen morphology of six species of genus Passiflora L. belonging to three subgenera (Passiflora, Dysosmia, Decaloba) were studied with light and scanning microscopy; P. caerulea was also examined with transmission microscopy.
M. T. AMELA GARCÍA   +2 more
openaire   +1 more source

Optical and ultrastructural study of the pollen grain development in hermaphrodite papaya tree (Carica papaya L.)

open access: yesBrazilian Archives of Biology and Technology, 2008
The objective of this study was to describe the pollen grain development in hermaphrodite papaya tree. The flower buds were collected at different stages of the development and the anthers were treated chemically for observation under optical and ...
Lídia Márcia Silva Santos   +7 more
doaj   +1 more source

Cyto-Embryological Analysis of Wild Kentucky Bluegrass Germplasm in Gansu Province, China

open access: yesAgronomy, 2023
Reproduction studies, particularly embryology, represent basic information of any plant. However, the current embryological information is fragmentary for Kentucky bluegrass (Poa pratensis L.).
Jinqing Zhang, Huiling Ma
doaj   +1 more source

Starch distribution in anthers, microspores and pollen grains in Aechmea recurvata (Klotzsch.) L.B.Sm., Dyckia racinae L.B.Sm. and Tillandsia aeranthos (Loisel.) L.B.Sm. (Bromeliaceae)

open access: yesActa Botânica Brasílica, 2015
This paper presents a comparative description of the starch distribution in the anthers, microspores and pollen grains of Aechmea recurvata, Dyckia racinae and Tillandsia aeranthos.
João Marcelo Santos de Oliveira   +3 more
doaj   +1 more source

Scanning and transmission electron microscopy ofEimeria maximamicrogametogenesis

open access: yesParasitology, 1981
SUMMARYThe structure and development of microgametocytes ofEimeria maximafrom chicks killed during the 6th day of infection were examined using transmission and scanning electron microscopy. Initially, nucleoli disappear and the surface of the microgametocyte invaginates.
S J, Ball   +3 more
openaire   +2 more sources

Arabidopsis COG Complex Subunits COG3 and COG8 Modulate Golgi Morphology, Vesicle Trafficking Homeostasis and Are Essential for Pollen Tube Growth. [PDF]

open access: yesPLoS Genetics, 2016
Spatially and temporally regulated membrane trafficking events incorporate membrane and cell wall materials into the pollen tube apex and are believed to underlie the rapid pollen tube growth.
Xiaoyun Tan   +17 more
doaj   +1 more source

Phenological phases of flowering in hop (Humulus lupulus L.) and their correspondence with microsporogenesis and microgametogenesis [PDF]

open access: yesScientia Horticulturae, 2019
[EN] Hop (Humulus Lupulus L.) suffered, as many other crops, a shrinkage of its intraspecific agrobiodiversity. Biotechnological methods of breeding would offer new opportunities to produce improved varieties with interesting phytochemical profiles and adaptable to the challenging conditions of climate change. Doubled haploid (DH) technology could be a
Liberatore   +4 more
openaire   +3 more sources

Systematic analysis of Plasmodium myosins reveals differential expression, localisation, and function in invasive and proliferative parasite stages

open access: yesCellular Microbiology, Volume 21, Issue 10, October 2019., 2019
Very little was known about the family of six myosins in malaria‐causing parasites, except for a role of one in motility. We show here that myosins have a diverse pattern of expression and subcellular location through the parasite life cycle in both the mammalian host and mosquito vector.
Richard J. Wall   +9 more
wiley   +1 more source

The androecium of Adenium obesum (Apocynaceae): anther and pollen grains development

open access: yesOrnamental Horticulture
In this study, we describe anther development in Adenium obesum, providing information on microsporogenesis, microgametogenesis, and the structure of mature pollen grains.
Deborah Cristina Dias Campos   +4 more
doaj   +1 more source

Pollen Development and Stainability in Vicia faba L. and Lupinus angustifolius L.

open access: yesAgriculture, 2023
Commercially, leguminous crops (Fabaceae) are the second most important group of cultivated plants, just after grasses (Poaceae). This study focuses on the analysis of pollen development and stainability in two species belonging to the Fabaceae family ...
Wiktor Skrzypkowski   +3 more
doaj   +1 more source

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