Results 91 to 100 of about 750 (185)

Development of Male Reproductive Organs in Walnut (Juglans regia L.)

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca
This study examined the morphogenesis of male inflorescences (catkins), staminate flowers, and pollen development in five walnut cultivars over two years.
Slađana J. Janković   +4 more
doaj   +1 more source

Azadirachtin Disrupts Formation of Organised Microtubule Arrays during Microgametogenesis of Plasmodium berghei

open access: yesJournal of Eukaryotic Microbiology, 2002
ABSTRACT. Transmission of malaria parasites from vertebrate blood to the mosquito vector depends critically on the differentiation of the gametocytes into gametes. This occurs in response to environmental stimuli encountered by the parasite in the mosquito bloodmeal.
Billker, O   +5 more
openaire   +3 more sources

Pollen development in relation to phenological stages of inflorescence expansion in Amelanchier alnifolia (saskatoon), with a comparison with buds forced out of dormancy

open access: yes, 1999
A relationship was developed between phenological stages of inflorescence expansion and the internal development of pollen within the anther of Amelanchier alnifolia Nutt. flowers.
Michael J Sumner   +2 more
core   +1 more source

Anther wall and pollen development in Ophrys mammosa L. (Orchidaceae)

open access: yes, 2012
The objective of this study was to investigate anther wall and pollen development in Ophrys mammosa. Primary sporogen tissue resembles longitudinal cells with divided archeosporal cells.
Aybeke, Mehmet
core   +1 more source

BcMF30a and BcMF30c, Two Novel Non-Tandem CCCH Zinc-Finger Proteins, Function in Pollen Development and Pollen Germination in Brassica campestris ssp. chinensis

open access: yes, 2020
Chinese cabbage (Brassica campestris) is an economically important leaf vegetable crop worldwide. Mounting studies have shown that cysteine-cysteine-cysteine-histidine (CCCH) zinc-finger protein genes are involved in various plant growth and development ...
Tingting Liu   +5 more
core   +1 more source

Morfo-anatomía floral, esporogénesis y gametogénesis en Ligaria cuneifolia (Loranthaceae)

open access: yesLilloa
Loranthaceae comprende plantas hemiparásitas, cosmopolitas. A fin de proporcionar información que contribuya a una mejor comprensión de la diversidad en la tribu Psittacantheae y sus relaciones filogenéticas, se analizó la morfo-anatomía floral ...
Stella Maris Solís   +1 more
doaj   +1 more source

Exflagellation responses of cultured Plasmodium falciparum (Haemosporida: Plasmodiidae) gametocytes to human sera and midguts of anopheline mosquitoes (Diptera: Culicidae)

open access: yes, 1994
The process of exflagellation was quantified for cultured Plasmodium falciparum gametocytes exposed to human sera and midgut homogenates from six vector species of Anopheles mosquitoes. Neither serum factors related to malaria exposure nor factors in the
Noden, B H, Beier, J C, Mendis, C
core   +1 more source

Ultrastructural aspects of pollen ontogeny in an endangered plant species, Pancratium maritimum L. (Amaryllidaceae)

open access: yes, 2017
Pollen ontogeny in Pancratium maritimum L. was studied from the sporogenous cell to mature pollen grain stages using transmission electron, scanning electron, and light microscopy to determine whether the pollen development in P.
Konyar, Sevil Tutuncu
core   +1 more source

Evidence of accelerated and altered pollen development after Imazapyr treatment in resistant sunflower

open access: yes, 2020
Imazapyr (IM) treatment applied at early reproductive developmental stages have been associated with induced male sterility in sunflower (Helianthus annuus L.).
Graciela María Nestares (8590986)   +3 more
core   +1 more source

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