نتایج جستجو برای: microspore viability

تعداد نتایج: 66375  

Journal: :Brazilian Archives of Biology and Technology 2004

2012
Alison M.R. Ferrie

Doubled haploidy methodology is commonly used in many agronomically important crops to speed the development of new cultivars. There are a number of advantages in using haploidy technology in both practical application (varietal development, mutagenesis, transformation) and basic research (genomics, biochemical, and physiological studies). Haploid plants are commonly produced using one of four ...

Journal: :Molecular plant 2008
Yixing Wang Hong Wu Ming Yang

The Arabidopsis sporophytic tapetum undergoes a programmed degeneration process to secrete lipid and other materials to support pollen development. However, the molecular mechanism regulating the degeneration process is unknown. To gain insight into this molecular mechanism, we first determined that the most critical period for tapetal secretion to support pollen development is from the vacuola...

2010
Mohammed Inamuddin Mohammad Saquib

The present investigation deals with morphological and embryological studies of Rhynchelytrum repens (Willd) C.E. Hubbard. The development of anther walls are found to be Monocotyledonous type. The tapetal cells are substantially large, glandular and uninucleate. The middle layer is ephemeral and their cells are small in size. It is sandwiched between endothecial and tapetal layer. The endothec...

Journal: :Plant physiology 2001
D M Paxson-Sowders C H Dodrill H A Owen C A Makaroff

To identify factors that are required for proper pollen wall formation, we have characterized the T-DNA-tagged, dex1 mutation of Arabidopsis, which results in defective pollen wall pattern formation. This study reports the isolation and molecular characterization of DEX1 and morphological and ultrastructural analyses of dex1 plants. DEX1 encodes a novel plant protein that is predicted to be mem...

Journal: :Plant Cell, Tissue and Organ Culture (PCTOC) 2014

Journal: :Vavilov Journal of Genetics and Breeding 2019

Journal: :Selcuk Journal of Agricultural and Food Sciences 2020

Journal: :International Journal of Current Microbiology and Applied Sciences 2018

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