Results 31 to 40 of about 1,471 (114)

Estudios cromosómicos en Acmella bellidioides (Sm.) R.K.Jansen (Asteraceae) del nordeste de Argentina Chromosomal studies in Acmella bellidioides (Sm.) R.K.Jansen (Asteraceae) from northeast Argentina

open access: yesGayana: Botanica, 2011
Acmella bellidioides es una hierba perenne pequeña, que crece naturalmente en las provincias del nordeste de Argentina, en Brasil, Paraguay y Uruguay.
Patricia M Aguilera   +2 more
doaj  

Spikelet sterility in rice genotypes affected by temperature at microsporogenesis

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
This study evaluated the effect of temperatures during the phase of microsporogenesis on spikelet sterility of paddy rice and identified genotypes tolerant to low temperatures at this growth stage.
Natalia M. de Souza   +3 more
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

The carnivorous rainbow plant Byblis filifolia Planch. secretes digestive enzymes in response to prey capture independently of jasmonates

open access: yesPlant Biology, Volume 27, Issue 4, Page 549-557, June 2025.
Secretion of digestive enzymes in response to prey capture in carnivorous plants with sticky traps is regulated by jasmonates in Drosera capensis but differently by unknown factor in Byblis filifolia. Abstract Carnivorous plants from the order Caryophyllales co‐opted plant phytohormones from a group of jasmonates to regulate digestive enzyme activity ...
A. Pavlovič   +5 more
wiley   +1 more source

CARACTERIZACION MORFOLOGICA Y CROMOSOMICA DE COMMELINA BENGHALENSIS L. (COMMELINACEAE) DE ARGENTINA MORPHOLOGICAL AND CHROMOSOMAL CHARACTERIZATION OF COMMELINA BENGHALENSIS L. (COMMELINACEAE) FROM ARGENTINA

open access: yesGayana: Botanica, 2009
Commelina benghalensis es una hierba pequeña, nativa de Africa y Asia tropical, aunque en la actualidad crece en casi todo el mundo. En América se la reporta creciendo en campo abierto, borde de bosques y áreas cultivadas (sur de USA, México, Antillas ...
Mauro Grabiele   +4 more
doaj  

Irregularities in the development of male and female gametophytes in the greenhouse carnation (Dianthus caryophpllus L. cv. William Sim.)

open access: yesActa Agrobotanica, 2015
It was found that numerous teratological transformations of the pistils and stamens account for the complete or partial female and male sterility in D. caryaphyllus L. cv. William Sim.
M. A. Zenkteler   +2 more
doaj   +1 more source

Genome‐wide association study identifies QTL and candidate genes for grain size and weight in a Triticum turgidum collection

open access: yesThe Plant Genome, Volume 18, Issue 1, March 2025.
Abstract Wheat breeders are constantly looking for genes and alleles that increase grain yield. One key strategy is finding new genetic resources in the wild and domesticated gene pools of related species with genes affecting grain size. This study explored a natural population of Triticum turgidum (L.) phenotyped for grain weight and size‐related ...
G. Mangini   +4 more
wiley   +1 more source

Chemical mutagenesis in head cabbage (Brassica oleracea var.capitata L.): III effect of ethyl methane sulphonate on mycosporogenesis and pollen fertility [PDF]

open access: yesSelekcija i Semenarstvo, 2006
The aim of present investigation was to study the effect of different ethyl methane sulfonate (EMS) concentrations (0.5, 0.6 and 0.7%) on microsporogenesis and on the expression of pollen fertility in M1 plants, obtained from treated cabbage seeds ...
Nikolova Vesselina   +3 more
doaj  

Patterns and Drivers of Pollen Temperature Tolerance

open access: yesPlant, Cell &Environment, Volume 48, Issue 2, Page 1366-1379, February 2025.
ABSTRACT Pollen, a pivotal stage in the plant reproductive cycle, is highly sensitive to temperature fluctuations, impacting seed quality and quantity. While the importance of understanding pollen temperature limits (Tmin, Topt, Tmax – collectively PTLs) is recognized, a comprehensive synthesis of underlying drivers is lacking.
Donam Tushabe, Sergey Rosbakh
wiley   +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

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