Results 21 to 30 of about 192 (151)

EMS induced intercellular chromatin transmigration in Papaver somniferum L.

open access: yesCzech Journal of Genetics and Plant Breeding, 2013
The phenomenon of chromatin migration was observed during microsporogenesis in an ethyl methane sulphonate (EMS) treated population of poppy, which is an important medicinal plant.
Girjesh KUMAR, Sana NASEEM
doaj   +1 more source

Cytomixis in Lamiaceae.

open access: yesCYTOLOGIA, 1988
Cytomixis has been observed in the pollen mother cells of Leucas aspera, two species of Mentha and two populations of Leonurus sibiricus. In Mentha piperita L. (2n=120), it has been noted to be of common occurrence as it occurs in almost all the stages of meiotic division.
Kundu, Anadi Kumar, Sharma, A. K.
openaire   +2 more sources

The role of cell selection for pollen grain fertility after treatment of barley sprouts (Hordeum distichum L.) with UV-B irradiation

open access: yesActa Biologica Slovenica, 2011
UV-B irradiation of barley sprouts within the range of 0.5-4.3 kJ/m2 induced an increase in the number of chromosome aberrations in the root meristem and pathologies in the reproductive system.
Elena Kravets
doaj   +1 more source

Влияние цитомиксиса на ход микроспорогенеза и образование нередуцированных пыльцевых зерен у однодольных

open access: yesФактори експериментальної еволюції організмів, 2017
Aim. Despite significant progress in the investigation of cytomixis its functional role and effect on the course of meiosis as well as mechanisms of 2n pollen grains formation is still not completely clear.
E. A. Kravets   +4 more
doaj   +1 more source

Cytomixis and associated meiotic abnormalities affecting pollen fertility in Clematis orientalis

open access: yesBiologia Plantarum, 2010
Present cytological investigations from the cold desert regions of Lahaul-Spiti and Kinnaur (India) record the first ever tetraploid (2n=32) chromosome count and cytomixis in Clematis orientalis L. var. acutifolia Hook. f. et Thoms.
P. Kumar   +3 more
doaj   +1 more source

[Retracted] Leaf Rolling and Stem Fasciation in Grass Pea (Lathyrus sativus L.) Mutant Are Mediated through Glutathione‐Dependent Cellular and Metabolic Changes and Associated with a Metabolic Diversion through Cysteine during Phenotypic Reversal

open access: yesBioMed Research International, Volume 2014, Issue 1, 2014., 2014
A Lathyrus sativus L. mutant isolated in ethylmethane sulfonate‐treated M2 progeny of mother variety BioL‐212 and designated as rlfL-1 was characterized by inwardly rolled‐leaf and stem and bud fasciations. The mutant exhibited karyomorphological peculiarities in both mitosis and meiosis with origin of aneuploidy.
Dibyendu Talukdar   +2 more
wiley   +1 more source

Cytogenetic study and pollen viability of four populations of Trigonella [PDF]

open access: yesJournal of Cell and Molecular Research, 2011
In the present paper, the cytogenetic study including meiotic chromosome number and behavior along with pollen viability were performed in 4 populations of Trigonella spruneriana Boiss. This is the first cytogenetic report of the taxon.
Masood Ranjbar   +2 more
doaj   +1 more source

Meiotic irregularities associated to cytomixis in Buddleja iresinoides (Griseb.) Hosseus. (Buddlejaceae) and Castilleja arvensis Schltdl. & Cham. (Orobanchaceae)

open access: yesCaryologia, 2019
The current paper analyzes the male meiotic behavior in wild populations of Buddleja iresinoides and Castilleja arvensis from Piedmont areas of the Northwest Region of Argentina. Castilleja arvensis showed tetraploid number of chromosome of 2n = 24.
Aldo Ruben Andrada   +3 more
doaj   +1 more source

Ethnobotany and Ethnomedicinal Uses, Chromosomal Status and Natural Propagation of Some Plants of Lahaul‐Spiti and Adjoining Hills

open access: yesJournal of Botany, Volume 2013, Issue 1, 2013., 2013
The present study documented the ethnobotanical and medicinal uses of plants from an ecologically fragile cold desert area of Lahaul‐Spiti (Himachal Pradesh, India). Local people use plants for curing the stomach troubles, pain reliever, cough, gastric disorders, and aphrodisiac and other household purposes.
Puneet Kumar   +2 more
wiley   +1 more source

Erratic Male Meiosis Resulting in 2n Pollen Grain Formation in a 4x Cytotype (2n = 28) of Ranunculus laetus Wall. ex Royle

open access: yesThe Scientific World Journal, Volume 2012, Issue 1, 2012., 2012
Two accessions were studied for male meiosis in Ranunculus laetus from the cold regions of Northwest Himalayas. One accession showed the presence of 14 bivalents at diakinesis and regular segregation of bivalents at anaphase I which lead to normal tetrad formation with four n microspores and consequently n pollen grains and 100% pollen fertility ...
Puneet Kumar   +3 more
wiley   +1 more source

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