Results 41 to 50 of about 192 (151)

Meiotic behavior and pollen viability in Jatropha curcas L.

open access: yesSemina: Ciências Agrárias, 2015
The Jatropha curcas, known as physic nut, belonging to the Euphorbiaceae family, figure today as one of the greatest potential of oilseeds for biodiesel production in Brazil. The present study aimed to evaluate meiosis and pollen viability in J.
Isabela Pereira Diegues   +4 more
doaj   +1 more source

Effect of heavy metals on meiosis cell division in Stachys inflata Benth. [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2019
Stachys inflata Benth. belonging to Lamiaceae, grows in the vicinity of zinc and lead mine around Zehabad village, Qazvin Province, Iran. The aim of this study is to determine how S. inflata is affected by a long-term exposure to zinc and lead pollutants.
F. Hajmoradi, A. Taleb Beydokhti
doaj   +1 more source

Floral architecture, breeding system, seed biology and chromosomal studies in endangered Himalayan Angelica glauca Edgew. (Apiaceae)

open access: yesCaryologia, 2019
Endangered Angelica glauca an important medicinal plant of temperate Himalaya is valued for its roots which are used to treat several diseases besides food flavouring.
Kamini Gautam, Ravinder Raina
doaj   +1 more source

Cytomixis as a primary form of sexual process

open access: yesAdvances in Cytology & Pathology, 2018
Background In this review presents a new concept of the functional role of cytomixis Another is a self organizing system where microsporocytes demonstrate certain traits of individuality and social behaviour in particular altruism competition and collective self organization Cytomixis function in microsporogenesis is comparable with evolutionarily
openaire   +1 more source

Cytomixis in the Microsporogenesis of Vicia faba L. (Fabaceae)

open access: yesCYTOLOGIA, 2004
Cytomixis has been observed in pollen mother cells of Vicia faba. Of all eight sites plant materials were collected and investigated, cytomixis has been noted in six. Four of these sites recorded high percentage of cytomixis, where the two other sites show low concentration of this phenomenon.Cytomixis was observed to occur in forms of cytoplasmic ...
Haroun, Soliman A.   +2 more
openaire   +2 more sources

Meiotic irregularities in Capsicum L. species

open access: yesCrop Breeding and Applied Biotechnology, 2012
Cytogenetic and pollen viability (PV) studies were performed in pepper accessions, Capsicum chinense and Capsicum baccatum. Irregularities such as laggard and univalent chromosomes, bridges, problems in the spindle fibers and cytomixis were observed ...
Margarete Magalhães Souza   +3 more
doaj  

Cytogenics, morphology and viability of Borreria spinosa (Rubiaceae) pollen grains

open access: yesCuadernos de investigación UNED
Introduction: Borreria spinosa is a herbaceous plant considered a weed in agricultural crops, although it also has potential in apiculture. Despite its agronomic importance, its cytogenetic and palynological traits are poorly known. Objective: To do the
Paola Belen Pereyra   +4 more
doaj   +1 more source

Apogamous Isoetes coromandelina L.f. (Isoetaceae) with asynaptic meiosis

open access: yesCaryologia
This cytological study on Isoetes coromandelina L.f (Isoetaceae) from Tirunelveli District, Tamil Nadu, South India shows the presence of twenty two individual chromosomes along with a fragment (n=2n=22+1) during meiosis in megaspore mother cells without
V. Irudayaraj   +2 more
doaj   +1 more source

First record of nucleus migration in premeiotic antherial cells of Saccharum spontaneum L. (Poaceae)

open access: yesCaryologia, 2022
                        The occurrence of nucleus migration is reported for the first time in a clone (2n = 64) of ‘Thatch’ grass (Saccharum spontaneum L.) of the family Poaceae.
MANISH KAPOOR   +2 more
doaj  

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