Reda Meziani

Reda Meziani
Institut National de la Recherche Agronomique | INRA Morocco

PhD Plant Biotechnology

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31
Publications
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346
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Publications

Publications (31)
Article
Full-text available
The inflorescence rot is a very dangerous cryptogamic disease that is prevalent in all phoeniculture regions and causes heavy economic losses. The identification and characterization of the causal agent is a key step to tackling this disease, and such studies are very scanty in Morocco. This work was carried out in Darâa Tafilalet region SouthEast...
Article
Full-text available
The aim of the present study was to estimate the production cost of dates of cv. Majhoul (Phoenix dactylifera L.) as part of the Moroccan strategy to de- velop the date palm sector, and to compare it to that reported in the main exporting regions. Data were collected through surveys of farmers and farm owners carried out in the “Meski Boudnib” exte...
Article
Full-text available
The effects of different medium components on somatic embryogenesis induction, and somatic embryo maturation and conversion were evaluated in date palm cv. Bouskri. Adventitious bud segments were used to induce somatic embryogenesis. The explants were cultured on Murashige and Skoog medium at full strength (MS) or half strength (MS/2), supplemented...
Article
Full-text available
The Bayoud disease, caused by the fungus Fusarium oxysporum f. sp. albedinis, is a very dangerous date palm disease that killed millions of plants during the last century and threatens the best Moroccan cultivars, including cv. Bouskri. In order to fight Bayoud and to preserve the best date palm cultivars, rapid and large-scale propagation through...
Article
Bouskri cv. is one of the most important date palm (Phoenix dactylifera L.) cultivars in Morocco. Unfortunately, cv. Bouskri is highly sensitive to the bayoud disease. In order to preserve this cultivar, developing a rapid and large-scale propagation system is highly desirable. Herein, the effects of different factors on cv. Bouskri organogenesis w...
Article
Full-text available
Argania spinosa (L.) Skeels is an endangered plant species endemic to Morocco. In recent years, attempts to develop in vitro regeneration systems for this species were made. However, rooting and acclimatization of in vitro plants have been a bottleneck for successful propagation. In the present study, the effects of different concentrations of auxi...
Article
Full-text available
Organogenesis is the in vitro regeneration technique used in Morocco for rapid and large-scale propagation of date palm. Unfortunately, this technique is hampered by tissue browning, a physiological disorder that decreases the proliferation capacity of shoot buds and affects the quality of the multiplied plants, and by endophytic bacteria, which ar...
Article
Organogenesis is an in vitro regeneration method used for rapid and large-scale propagation of a number of plant species. During the last decade, organogenesis has been used as a tool to rehabilitate date palm groves in Morocco, and resulted in the production of millions of date palm plantlets. In the present study, the production cost of date palm...
Article
Full-text available
An efficient in vitro propagation system through adventitious organogenesis is reported for argan (Argania spinosa (L.) Skeels). Seed germination of two argan genotypes, ‘Mejji’ and ‘R’zwa’, was evaluated under different treatments. Afterwards, the effects of different factors on adventitious shoot bud induction, shoot multiplication, elongation an...
Article
Full-text available
Date palm (Phoenix dactylifera L.) inflorescence rot caused by Mauginiella scaettae poses a serious threat to date palm in Morocco. The present study aims to determine the antifungal activity of five plant extracts against M. scaettae, including Acacia cyanophylla, Cupressus atlantica, Eucalyptus torquata, Nerium oleander, and Schinus molle and lin...
Article
Full-text available
In Morocco, soils that are naturally suppressive to date palm Bayoud disease have long been discovered. Although suppressiveness was attributed to biological activities of indigenous microbes, our knowledge on the specific mechanisms underpinning this property remains limited. In this study, we investigated nutrient competition between Fusarium oxy...
Article
Full-text available
Inflorescence rot is a serious constraint to date palm cultivation in Morocco. However, studies on the management of this fungal disease are limited. We compared seven fungicides (Thiram, Thiophanate-methyl, Copper oxychloride, Mancozeb, Fosetyl-aluminum, Chlorothalonil and Maneb) based on their antifungal activity against the causal agent, M. scae...
Article
Full-text available
Background “Bayoud” disease caused by Fusarium oxysporum f. sp. albedinis ( Foa ) poses a serious threat to date palm ( Phoenix dactylifera L.) in Morocco. However, research studies performed to discover biological methods to control this disease remain limited. The present study has set objectives to determine antifungal activity of five plants ex...
Article
Date syrup is the most common processed date product in Morocco, produced from surplus date fruit of inferior grades, which are not accepted by the food iandustry and sold at low prices. The present study aims to assess the physicochemical parameters and quality of syrups prepared using different date fruit varieties using traditional methods. In a...
Article
Full-text available
An efficient somatic embryogenesis system is reported for date palm cv. Al-Fayda, a genotype resistant to the bayoud disease. Callus induction was achieved from adventitious bud explants cultured for 6 months on semi-solid Murashige and Skoog (MS) medium containing 4.5 μM 6-(dimethylallylamino) purine (2iP) and various concentrations of 2,4-dichlor...
Article
The effects of various culture conditions on adventitious bud multiplication and plantlet regeneration in date palm cv. Al-Fayda were investigated. Adventitious buds were cultured on semi-solid Murashige and Skoog (MS) medium supplemented with three different plant growth regulator (PGR) combinations. The effects of various strengths and textures o...
Article
Full-text available
We identified two strains of endophytic bacteria associated with date palm explants by 16S rRNA gene amplification and sequencing, and we explored different approaches to control them. Based on their 16S sequences, the two isolates were identified as Microbacterium testaceum and Serratia marcescens. Antibacterial activity of essential oils, methano...
Article
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Maturation and germination of somatic embryos are two crucial steps in the somatic embryogenesis process. Herein, we evaluated the effects of several factors on the maturation and germination of date palm somatic embryos. Globular somatic embryos of cv. ‘Najda’ were cultured on Murashige and Skoog medium at full strength (MS), half strength (1/2MS)...
Article
Full-text available
The effects of various culture conditions on shoot elongation, rooting and plantlet acclimatization were tested. Adventitious shoots obtained through direct organogenesis of date palm (Phoenix dactylifera L.) cv. ‘Mejhoul’ were used as explants. The effects of culture medium texture, plant growth regulators, polyvinylpyrrolidone, adenine, myo-inosi...
Article
An efficient regeneration system via a combined pathway of organogenesis and somatic embryogenesis was developed for date palm (Phoenix dactylifera L.) cv. Mejhoul. Adventitious buds were obtained from shoot-tip explants with a frequency of 53.3% after 9 months of culture: 6 months on half-strength Murashige and Skoog (MS/2) medium containing 14.2...
Chapter
Plant tissue culture is now a widely used technology for many applications. Plant growth regulators (PGRs) play an important role in this technology. Auxins and cytokinins are by far the most commonly used PGR classes in plant tissue culture. N-Phenyl-N′ -1,2,3-thiadiazol-5-ylurea, also known as thidiazuron or TDZ, is a synthetic PGR and a phenylur...
Article
Full-text available
Le «Bayoud», fusariose vasculaire du palmier dattier, est une maladie séculaire sévissant dans les oasis marocaines. L’importance stratégique de la phoeniciculture dans l’agriculture oasienne amorce son intensification par la création de nouveaux projets d’investissement sur des terrains potentiellement indemnes du Bayoud, mais proches de zones con...
Article
An efficient regeneration system through somatic embryogenesis was developed for date palm cv. Najda. Adventitious bud and proximal leaf segments cultured on Murashige and Skoog (MS) medium supplemented with various combinations of auxins and cytokinins induced embryogenesis after at least 6 months of culture. Somatic embryogenesis induction seemed...
Article
Plant impacts on soil microbial communities and plant-microbe feedbacks have become the focus of much research. Recent advances in plant-microbe interactions investigations show that plants are able to shape their rhizosphere microbiome through diverse mechanisms. In this review, we gather findings from across multiple studies on the role of plants...
Article
The effect of some chemical and natural antioxidants on date palm organogenesis was evaluated. Shoot tip explants of Phoenix dactylifera L. cv. Mejhoul were cultured on half-strength Murashige and Skoog (1/2MS) medium supplemented with various concentrations (1.5, 3 or 4.5 g l−1) of activated charcoal (AC), polyvinylpyrrolidone (PVP) or date stone-...
Article
Full-text available
The effects of major mineral salts, l-glutamine, myo-inositol and carbon source on shoot bud proliferation of date palm (Phoenix dactylifera L.) cv. Mejhoul were evaluated. Different concentrations of ammonium nitrate (NH4NO3; 550, 825 or 1650 mg/L), potassium nitrate (KNO3; 633.3, 950 or 1900 mg/L), calcium chloride dehydrate (CaCl2 center dot 2H(...
Article
Full-text available
The present study aimed to determine the best combination of plant growth regulators (PGRs) and light intensity in order to improve organogenesis of date palm (Phoenix dactylifera L.) cultivar Mejhoul. Organogenic cultures obtained from shoot tip explants were cultured on half-strength Murashige and Skoog (MS/2) medium supplemented with various com...
Article
Full-text available
Somatic embryogenesis and organogenesis are the two pathways of choice for rapid and large-scale propagation of date palm. They have been successfully used for the micropropagation of elite genotypes and have proved their effectiveness for the commercial production of many cultivars. Nevertheless, regeneration through somatic embryogenesis or organ...
Article
Full-text available
We developed a novel large-scale micropropagation pathway for date palm (Phoenix dactylifera L.) based on organogenesis. We obtained organogenic stems from shoot tip explants of the Moroccan date palm cultivar Najda, and investigated shoot proliferation from these organogenic stems in vitro on various media; Beauchesne medium (BM) and Murashige and...

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