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Dissertation
Etude des facteurs susceptibles d'accroître le taux d'obtention d'haploides de froment par culture d'anthères.
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Year: 1990

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Keywords

Wheats --- haploidy --- Anther culture


Dissertation
Etude de l'obtention de suspensions d'embryons androgéniques de blé.
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Year: 1994

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Dissertation
Contribution to the study of regeneration of wheat plantlets (Triticum aestivum L. em. Thell) from embryo and anther cultures.
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Year: 1988 Publisher: Gembloux : Faculté des Sciences Agronomiques, Laboratoire de Pathologie Végétale,

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Dissertation
Mise au point d'un protocole pour la culture in vitro d'anthères de Lagenaria siceraria (Molina) Standley
Authors: ---
Year: 2013 Publisher: [S.l. : chez l'auteur],

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Dissertation
Développement d'une méthodologie de culture in vitro d'anthères chez les espèces Phaseolus vulgaris L. et P. coccineus L.
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Year: 1996

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Grain legumes, particularly those belonging to the genus Phaseolus, are considered to be recalcitrant to tissue culture. The objective of this thesis was to develop a protocol of anther in vitro culture of several Phaseolus species, by considering in priority factors which improve androgenesis induction. The effect of the following parameters was studied : genetic origin of the donor plants, conditions of culture, development stage of the microspores, composition of the culture media, concentration and density of the anthers in the medium and cold pre-treatment of the flower buds or of the anthers. The available protocols can be applied either to cultivated or to wild genotypes of Phaseolus vulgaris and Phaseolus coccineus and the donor plants must be cultivated in controlled conditions. The best results were obtained with anthers containing microspores at the uninucleated stage. The anther response was influenced by the composition of the medium and was the highest with media containing the salts of Murashige and Skoog, kinetin (2 mg. l-1), 2, 4-D (2 mg. l-1), a sugar (either sucrose or maltose at a concentration ranging from 1.25 to 2.5 %), the vitamins of the N6 medium, casein hydrolysate and agarose. The best conditions were obtained by growing 40 anthers in Petri dishes with a diameter of 55 mm containing 10 ml of medium, in the dark and at 26°C, with a cold pre-treatment of the flower buds for 1 or 2 days. Preliminary trials enabled the identification of factors which could improve plant regeneration : the choice of genotype and composition of the medium. Globular structures were observed on calli developed on a medium containing Murashige and Skoog's salts, abscissic acid (1-2 mg. l-1), sucrose (3 %), vitamins of the N6 medium, glutamine (100 mg. l-1), casein hydrolysate (2 g. l-1) and agarose (5 g. l-1). Finally, the ploidy level of the calli was determined by n-microfluorometry and showed a high frequency of haploid cells.

Biotechnology in agriculture and forestry.
Author:
ISBN: 3540627286 Year: 1998 Publisher: Berlin : Springer,


Book
Pollen et spores d'Europe et d'Afrique du Nord
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ISBN: 2950717500 Year: 1992 Publisher: Marseille Laboratoire de botanique historique et palynologie

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Book
Pollen Allergy in a Changing World : A Guide to Scientific Understanding and Clinical Practice
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ISBN: 9811054991 9811054983 Year: 2018 Publisher: Singapore : Springer Singapore : Imprint: Springer,

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This book presents the latest scientific knowledge on the role of pollens in triggering respiratory allergies and offers up-to-date guidance on the diagnosis, treatment, and prevention of pollen allergy. Detailed information is supplied on allergenic plants and on the complex associations between pollen allergy and local weather conditions, air pollution, and climate change. Readers will learn how climate change in particular is impacting on pollen concentrations, pollen allergenicity, the pollen season, and plant and pollen distribution. A further important feature is the presentation of a forecasting system for allergenic pollens that takes into account a variety of meteorological factors and is designed to be of benefit to allergy patients. This up-to-date scientific knowledge is complemented by clear guidance on all aspects of the management of pollen allergy. The closing chapters address global trends in allergy research and future prospects for pollen allergy. The book will appeal both to researchers seeking state of the art information on the topic and to clinicians wishing to optimize patient care.


Dissertation
Contribution à la sélection in vitro de plantes androgéniques de blé pour leur tolérance au NaCl.
Author:
Year: 1991 Publisher: Gembloux : Faculté des Sciences Agronomiques, Département de Biologie Protection des Végétaux,

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Book
Horticultural biotechnology : Proceedings of the Horticultural Biotechnology Symposium, held at the University of California, Davis, California. August 21-23, 1989.
Authors: ---
ISBN: 0471568066 Year: 1990 Volume: vol 11 Publisher: New York : Wiley-Liss,

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