Results 61 to 70 of about 5,131 (204)
Brazilian Journal of BiologyReproductive studies were carried out on Brazilian accessions of ipecac, Cephaelis ipecacuanha. Meiotic behavior was studied using the squashing technique.
M. M. Souza +3 more
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Effects of endogamy on microsporogenesis in popcorn (Zea mays L.) [PDF]
Crop Breeding and Applied Biotechnology, 2007 Inbred lines are necessary for the development of popcorn hybrids. Genes for several traits, among them thoserelated to the meiotic process, approach homozygosis during inbreeding. The purpose of this paper was to evaluate themeiotic stability of popcorn
Maria Fernanda Piffer Tomasi Baldez da Silva +3 more
doaj
Цитомиксис, его природа, значение и цитологические последствия [PDF]
, 2012 Цитомиксис является широко распространенным естественным процессом межклеточного взаимодействия, который свойствен вегетативным и генеративным тканям как в норме, так и при патологии.
Кравец, Е.А.
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Biotropica, Volume 56, Issue 5, September 2024.Temperatures in the Brazilian Cerrado—an important, complex, and biodiverse savannah ecosystem–are increasing, potentially impacting many aspects of plant development and function, including sexual reproduction, which is thought to be particularly sensitive to temperature stress.
Georgina A. Werkmeister +11 more
wiley +1 more source
New Phytologist, Volume 243, Issue 5, Page 1840-1854, September 2024.Summary The B chromosomes exhibit diverse behaviour compared with conventional genetic models. The capacity of the B chromosome either to accumulate or to be eliminated in a tissue‐specific manner is dependent on biological processes related to aberrant cell division(s), but here yet remains compatible with normal development.
Miroslava Karafiátová +9 more
wiley +1 more source
Biologia Plantarum, 2013 The formation of cytomictic channels (CCs) during the tobacco microsporogenesis has been analyzed by microscopy and cytochemical methods. Starting from the pachytene stage, CCs were formed between microsporocytes with involvement of specific organelles ...
S. Mursalimov, Y. Sidorchuk, E. Deineko
doaj +1 more source
OsALKBH9‐mediated m6A demethylation regulates tapetal PCD and pollen exine accumulation in rice
Plant Biotechnology Journal, Volume 22, Issue 9, Page 2410-2423, September 2024.Summary The N6‐methyladenosine (m6A) mRNA modification is crucial for plant development and stress responses. In rice, the male sterility resulting from the deficiency of OsFIP37, a core component of m6A methyltransferase complex, emphasizes the significant role of m6A in male fertility. m6A is reversible and can be removed by m6A demethylases. However,
Jun Tang +10 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]
Selekcija 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
Introgression in interspecific hybrids of lily [PDF]
, 2002 In order to introduce new desirable characters into the cultivar assortment of lily a range of interspecific crossing barriers has to be overcome. By using various pollination and embryo rescue techniques pre- and postfertilization barriers were overcome
Lim, K.B. +2 more
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International Biological Flora: Ceratonia siliqua
Journal of Ecology, Volume 112, Issue 8, Page 1885-1922, August 2024.The carob tree (Ceratonia siliqua) has a long traditional history in Mediterranean cultures providing food for humans and domestic animals. Its remarkable tolerance of drought, salt and fire, with an ability to thrive in poor, dry soils, makes it ideal for a warming Mediterranean climate.
Peter A. Thomas +3 more
wiley +1 more source