Two Arabidopsis late pollen transcripts are detected in cytoplasmic granules
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چکیده
منابع مشابه
Kinky Pollen and Poky Pollen Tube Are Two Novel Genes Required for Tip Growth and Duplicated in the Arabidopsis Genome
Screening of male gametophytic mutants from the Versailles collection of T-DNA transformants allowed us to isolate and characterize two novel genes: KINKY POLLEN (KIP) and POKY POLLEN TUBE (POK), which are required for correct tip growth in Arabidopsis thaliana. As KIP and POK are expressed in all plant tissues, though to a higher level in pollen and roots, their roles may not be restricted to ...
متن کاملImmunological Interactive Effects between Pollen Grains and Their Cytoplasmic Granules on Brown Norway Rats
BACKGROUND : Grass pollen is one of the most important aeroallergen vectors in Europe. Under some meteorological factors, pollen grains can release pollen cytoplasmic granules (PCGs). PCGs induce allergic responses. Several studies have shown that during a period of thunderstorms the number of patients with asthma increases because of higher airborne concentrations of PCGs. OBJECTIVE : The ai...
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During the angiosperm (flowering-plant) life cycle, double fertilization represents the hallmark between diploid and haploid generations [1]. The success of double fertilization largely depends on compatible communication between the male gametophyte (pollen tube) and the maternal tissues of the flower, culminating in precise pollen tube guidance to the female gametophyte (embryo sac) and its r...
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Grass pollen is one of the most important vectors of aeroallergens. Under atmospheric conditions, pollen grains can release pollen cytoplasmic granules (PCGs). The allergens associated with these intrinsic subfractions induce, in laboratory animals as well as in asthmatic patients, allergic and inflammatory responses. The objectives of this study were to characterize the PCGs' intrinsic allerge...
متن کاملTwo Arabidopsis AGC kinases are critical for the polarized growth of pollen tubes.
Reproduction of flowering plants requires the growth of pollen tubes to deliver immotile sperm for fertilization. Pollen tube growth resembles that of polarized metazoan cells, in that some molecular mechanisms underlying cell polarization and growth are evolutionarily conserved, including the functions of Rho GTPases and the dynamics of the actin cytoskeleton. However, a role for AGC kinases, ...
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ژورنال
عنوان ژورنال: Plant Direct
سال: 2017
ISSN: 2475-4455
DOI: 10.1002/pld3.12