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Dive into the research topics where Monique Guis is active.

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Featured researches published by Monique Guis.


Plant Cell Reports | 1998

Expression of an antisense 1-aminocyclopropane-1-carboxylate oxidase gene stimulates shoot regeneration in Cucumis melo

Mohamed Ben Amor; Monique Guis; Alain Latché; Mondher Bouzayen; Jean-Claude Pech; Jean-Paul Roustan

Abstract The role of ethylene in shoot regeneration was investigated using transgenic Cucumis melo plants expressing an antisense 1-aminocyclopropane-1-carboxylate (ACC) oxidase gene. ACC oxidase catalyses the last step of ethylene biosynthesis. Leaf and cotyledon explants from the transgenic plants exhibited low ACC oxidase activity and ethylene production, whereas the regeneration capacity of the tissues was greatly enhanced (3.5- and 2.8-fold, respectively) compared to untransformed control tissues. Addition of ethylene released by 50 or 100 µm 2-chloroethylphosphonic acid dramatically reduced the shoot regeneration rate of the transgenic tissues. The results clearly demonstrate that ethylene plays an important role in C. melo morphogenesis in vitro.


Scientia Horticulturae | 1997

An efficient method for production of diploid Cantaloupe Charentais Melon (Cucumis melo L. var. cantalupensis) by somatic embryogenesis

Monique Guis; Alain Latché; Jean-Claude Pech; Jean-Paul Roustan

Abstract This paper describes a system of regeneration that allows somatic embryo formation at high frequency from mature cotyledon explants of Cucumis melo L. var. cantalupensis (cv. Vedrantais). Several different growth factors, environmental conditions and carbohydrate sources were analysed in order to improve somatic embryogenesis in this cultivar. Best conditions lead to the definition of a two step protocol including a 2 week period of embryogenesis induction in Murashige and Skoogs medium supplemented with 30 g l −1 glucose, 10 μM 2,4-dichlorophenoxyacetic acid and 0.5 μM 6-benzylaminopurine (IM medium) in the darkness, followed by a period of embryo development on the same medium without hormone (DM medium), under a 16/8 h light/dark photoperiod. After 4 weeks of culture, somatic embryos were converted into plantlets on the DM medium in a Magenta vessel. Using this optimized protocol, 42% of the explants were able to generate embryos with an average of 7.8 embryos per explant. More than 60% of the plants generated from these embryos were diploid, exhibited the phenotype expected and gave well-developed fruit.


Archive | 1999

Control of melon ripening by genetic engineering

Monique Guis; M. Ben Amor; R. Botondi; Ricardo Antonio Ayub; Alain Latche; Mondher Bouzayen; Jean-Claude Pech

The melon, Cucumis melo L. is an ancient plant, likely originating from the tropical Africa/Middle-East regions. It then spread out to the Mediterranean, India and Asia (Withaker & Davis, 1962) from where a large diversity of fruit types have now emerged (Kirkbride, 1993). Within the Cucumis melo species, a wide range of ripening behaviour exists. For example, some varieties tend to have a sharp climacteric respiration associated with a fast fruit ripening and abscission rate (Lyons et al., 1962). In contrast, other varieties do not abscise at maturity, and the climacteric may be absent (Nukaya et al., 1986) or extended over several days (Pratt et al., 1977).


Nature Biotechnology | 1996

Expression of ACC oxidase antisense gene inhibits ripening of cantaloupe melon fruits

Ricardo Antonio Ayub; Monique Guis; Mohamed Ben Amor; Laurent Gillot; Jean-Paul Roustan; Alain Latché; Mondher Bouzayen; Jean-Claude Pech


Journal of Experimental Botany | 2007

Ethylene regulation of fruit softening and cell wall disassembly in Charentais melon.

Kiyomi Nishiyama; Monique Guis; Jocelyn K. C. Rose; Yasutaka Kubo; Kristen A. Bennett; Lu Wangjin; Kenji Kato; Koichiro Ushijima; Ryohei Nakano; Akitsugu Inaba; Mondher Bouzayen; Alain Latché; Jean-Claude Pech; Alan B. Bennett


Journal of The American Society for Horticultural Science | 1997

Ripening-associated Biochemical Traits of Cantaloupe Charentais Melons Expressing an Antisense ACC Oxidase Transgene

Monique Guis; Rinaldo Botondi; Mohamed Ben-Amor; Ricardo Antonio Ayub; Mondher Bouzayen; Jean-Claude Pech; Alain Latché


Plant Physiology | 2000

Characterization of ripening-regulated cDNAs and their expression in ethylene-suppressed Charentais melon fruit.

Kristen A. Hadfield; Tam Dang; Monique Guis; Jean-Claude Pech; Mondher Bouzayen; Alan B. Bennett


Scientia Horticulturae | 2000

A reliable system for the transformation of cantaloupe charentais melon (Cucumis melo L. var. cantalupensis) leading to a majority of diploid regenerants.

Monique Guis; Mohamed Ben Amor; Alain Latché; Jean-Claude Pech; Jean-Paul Roustan


Plant Physiology | 1999

Purification and Characterization of a NADPH-Dependent Aldehyde Reductase from Mung Bean That Detoxifies Eutypine, a Toxin from Eutypa lata

Ségolène Colrat; Alain Latché; Monique Guis; Jean-Claude Pech; Mondher Bouzayen; Jean Fallot; Jean-Paul Roustan


Plant Journal | 1998

A novel NADPH-dependent aldehyde reductase gene from Vigna radiata confers resistance to the grapevine fungal toxin eutypine

Pedro Guillen; Monique Guis; Gracia Martinez-Reina; Ségolène Colrat; Sylvie Dalmayrac; Corine Deswarte; Mondher Bouzayen; Jean-Paul Roustan; Jean Fallot; Jean-Claude Pech; Alain Latché

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Ricardo Antonio Ayub

Institut national de la recherche agronomique

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Jean Fallot

École Normale Supérieure

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Ségolène Colrat

École Normale Supérieure

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Corine Deswarte

École Normale Supérieure

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