Results 41 to 50 of about 750 (185)

Quantitative assessment of DNA replication to monitor microgametogenesis in Plasmodium berghei

Molecular and Biochemical Parasitology, 2009
Targeting the crucial step of Plasmodium transition from vertebrate host to mosquito vector is a promising approach to eliminate malaria. Uptake by the mosquito activates gametocytes within seconds, and in the case of male (micro) gametocytes leads to rapid DNA replication and the release of eight flagellated gametes.
Raabe, Andreas, Billker, Oliver, Vial, Henri, Wengelnik, Kai   +3 more
openaire   +3 more sources

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

Brazilian 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, Telma Nair Santana Pereira, Margarete Magalhães de Souza, Pedro Correa Damasceno Junior, Fabiane Rabelo da Costa, Beatriz Ferreira Ribeiro, Noil Gomes de Freitas, Messias Gonzaga Pereira   +7 more
doaj   +1 more source

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

Agronomy, 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

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

Botanical 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, B. G. GALATI, A. M. ANTON   +2 more
openaire   +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)

Acta 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, Merielem Saldanha Martins, Mariane Paludette Dorneles, Cesar Carvalho de Freitas   +3 more
doaj   +1 more source

Scanning and transmission electron microscopy ofEimeria maximamicrogametogenesis

Parasitology, 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, R M, Pittilo, L P, Joyner, C C, Norton   +3 more
openaire   +2 more sources

Sex ratios in the rodent malaria parasite, Plasmodium chabaudi [PDF]

, 2003
The sex ratios of malaria and related Apicomplexan parasites play a major role in transmission success. Here, we address 2 fundamental issues in the sex ratios of the rodent malaria parasite, Plasmodium chabaudi.
West, SA, West, S A, Read, A F, REECE, S. E., West, S. A., Read, A. F., Duncan, A B, West, Stuart A, Reece, S E, Duncan, A., Reece, SE, Duncan, AB, Read, AF, Duncan, Alison B, Read, Andrew F   +14 more
core   +1 more source

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

PLoS 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, Kun Cao, Feng Liu, Yingxin Li, Pengxiang Li, Caiji Gao, Yu Ding, Zhiyi Lan, Zhixuan Shi, Qingchen Rui, Yihong Feng, Yulong Liu, Yanxue Zhao, Chengyun Wu, Qian Zhang, Yan Li, Liwen Jiang, Yiqun Bao   +17 more
doaj   +1 more source

Histological and cytological analysis of microsporogenesis and microgametogenesis of the invasive species Galinsoga quadriradiata Ruiz & Pav. (Asteraceae) [PDF]

, 2015
Galinsoga quadriradiataRuiz & Pav. is an annual weedy plant that can be found all over the world. It belongsto the Asteraceae family and is recognised as one of the invasive foreign plants in Poland, which are native toCentral and South America.
Kolczyk, Jolanta, Tuleja, Monika, Plachno, B.J., Tuleja, M., Płachno, Bartosz, Kolczyk, J.   +5 more
core   +1 more source

Identifying the modes and mechanisms of action of transmission-blocking antimalarials against Plasmodium falciparum [PDF]

, 2022
Phenotypic drug screening has transformed the antimalarial development pipeline, facilitating the discovery of compounds targeting unexplored parasite proteins at a drastically accelerated rate. Breaking the cycle of malaria transmission is crucial to
Yahiya, Sabrina
core   +1 more source