Results 1 to 10 of about 1,432 (112)

Cryoimmobilized anther analysis reveals new ultrastructural insights into Rhynchospora (Cyperaceae) asymmetrical microsporogenesis [PDF]

open access: yesFrontiers in Plant Science
IntroductionThe Cyperaceae family is distinguished by holocentric chromosomes and a distinctive microsporogenesis process, which includes inverted meiosis, asymmetric tetrad formation, selective cell death, and the formation of pseudomonad pollen ...
Danilo M. Rocha   +5 more
doaj   +2 more sources

Evaluation of the course of microsporogenesis in some selected peach (Prunus persica L./Batsch) cultivars [PDF]

open access: yesActa Agriculturae Serbica, 2014
The evaluation of the microsporogenesis process was performed from January to April within the period of 2011-2013. The experiment involved 15 peach cultivars and the control cultivar Redhaven. The course of microsporogenesis was evaluated on the base of
Horsáková Jana, Krška Boris
doaj   +1 more source

Evaluation of mitotic activity in tapetal cells of grapevine (Vitis L.)

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2021
The knowledge with reference to the grapevine tapetum has been centered on its anatomy/morphology and hardly anything at all is known about its mitotic activity throughout the microsporogenesis. The aim of this study was to ascertain the mitotic activity
Neiva Izabel PIEROZZI   +1 more
doaj   +1 more source

Flower bud development of almond cultivars based on three different methods

open access: yesFolia Horticulturae, 2023
Flower bud development of fruit trees plays a key role in their climatic adaptation. It is closely related to dormancy release that determines winter frost susceptibility. Detailed characterisation of flower bud development of 25 almond (Prunus amygdalus
Keleta Belay Teweldemedhin   +3 more
doaj   +1 more source

Microsporogenesis, microgametogenesis, and pollen grain morphology of Fouquieria fasciculata (Fouquieriaceae, Ericales)

open access: yesBotan‪ical Sciences, 2023
Background: Embryology of the male reproductive structures in Fouquieriaceae has been poorly studied. The ontogeny of the anther wall, microsporogenesis, microgametogenesis, and pollen morphology were described in detail for Fouquieria fasciculata ...
Fabiola Soto-Trejo   +2 more
doaj   +1 more source

High Temperature Has Negative Impact on Pollen Development in Chili Pepper (Capsicum annuum L.) cv. Tanjung-2

open access: yesJurnal Ilmu Pertanian Indonesia, 2020
The development of male reproductive organ in plants is seriously affected by the adverse abiotic stresses. In this study, we investigated pollen development, particularly at microsporogenesis and micro gametogenesis stages of chili pepper (Capsicum ...
Iriawati, Isqim Oktaviani, Ahmad Faizal
doaj   +1 more source

The relation of meiotic behaviour to hybridity, polyploidy and apomixis in the Ranunculus auricomus complex (Ranunculaceae)

open access: yesBMC Plant Biology, 2020
Background Hybridization and polyploidization are powerful evolutionary factors that are associated with manifold developmental changes in plants such as irregular progression of meiosis and sporogenesis.
Birthe H. Barke   +3 more
doaj   +1 more source

Assessment of the effect of aerotechnogenic pollution on male reproductive organs Convolvulus arvensis L. [PDF]

open access: yesE3S Web of Conferences, 2021
The article presents the results of assessing the impact of airtechnogenic pollution on the male generative organs of Convolvulus arvensis L. The unfavorable effect of toxic emissions from the landfill of municipal solid waste and vehicles on the ...
Ibragimova Evelina, Manankova Olga
doaj   +1 more source

The development rhythm of the flower-bud in some Papilionaceae species. Part II. Microsporogenesis, macrosporogenesis and early gametogenesis in Pisum sp. forms against the background of bud development

open access: yesActa Societatis Botanicorum Poloniae, 2015
The process of microsporogenesis and development of pollen grains was found to occur in an identical rhythm in 14 examined forms of Pisum sp. as compared with the development of the perianth. In the 3 forms studied in detail: Pisum sativum L.
W. Wojciechowska
doaj   +1 more source

Microsporogenesis of peach (Prunus persica L. Batsch) varieties

open access: yesInternational Journal of Horticultural Science, 2002
Bud dormancy during winter is a critical factor in peach production in Hungary. The yield is determined basically by the survival rate of flower buds during winter frosts and by their ability to develop normal floral organs.
L. Szalay, B. Timon, Z. Szabó, J. Papp
doaj   +1 more source

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