Biocontrol of Agroathelia rolfsii associated with stem rot disease in tomato (Solanum lycopersicum L.) and growth promotion using compost-associated actinobacteria.

Stem rot disease (Agroathelia rolfsii) biocontrol is an environmentally safe alternative that could potentially decrease disease severity and limit plant and yield losses. In the present investigation, 11 actinomycetes isolates, recovered from disease-suppressive composts, were tested as whole cell suspensions and cell-free culture filtrates for their ability to suppress tomato stem rot and to stimulate plant growth. Five isolates (namely A5-3, A2-4, A3-4, A4-4 and A5-4), applied as cell suspensions, were found to be the most effective in suppressing disease severity by 37.

Biocontrol potential of endophytic Bacillus spp. associated to wild solanaceous species and their secondary metabolites against various potato (Solanum tuberosum L.) storage diseases.

Fusarium dry rot, Pythium leak and Southern blight diseases caused by various Fusarium species, Pythium aphanidermatum, and Agroathelia rolfsii, respectively, are responsible for important losses of tuber at the post-harvest stage in Tunisia. In the present study, six Bacillus strains, isolated from wild solanaceous plants, were screened for their abilities to inhibit potato pathogens in vitro and on potato tubers. Based on the dual culture assays, the whole cell suspensions of B.

Development and Investigation of a Nanoemulgel Formulated from Tunisian L. Seed Oil for Enhanced Wound Healing Activity.

The aim of this study is to develop a nanoemulgel encapsulating a Tunisian Prickly Pear ( L.) seed oil (PPSO) to assess, for the first time, the in vivo efficacy of this nanoformulation on wound healing. Phytocompounds of this oil have been reported in the literature as having powerful pharmacological activities.

Does hydration of 'Deglet Nour' date palm fruits improve their quality and help to reduce waste?

This work investigates the quality change of date palm fruits after hydration treatment which is commonly applied to enhance the hard textured 'Deglet Nour' fruits that are unacceptable for consumption. Date palm fruits were treated at 60-62 °C with saturated steam for 4 h in three different processing units (DPU). Mid Infrared Spectroscopy (MIR) giving a global spectral evaluation discriminates samples from the three DPUs and highlights date palm fruits of the first DPU regarding hydration treatment.

Unraveling the effect of phenolic extract derived from olive mill solid wastes on agro-physiological and biochemical traits of pomegranate and its associated rhizospheric soil properties.

Agricultural waste management poses a significant challenge in circular economy strategies. Olive mill wastes (OMW) contain valuable biomolecules, especially phenolic compounds, with significant agricultural potential. Our study evaluate the effects of phenolic extract (PE) derived from olive mill solid wastes (OMSW) on pomegranate agro-physiological and biochemical responses, as well as soil-related attributes.

Genetic Diversity Assessment of Spanish and Some Endangered Tunisian Pea (Pisum sativum L.) Accessions Based on Microsatellite Markers (SSRs).

In the current investigation, 28 accessions of Spanish and Tunisian peas were characterized by eight SSR polymorphic markers to assess their genetic diversity. Many methods have been applied to evaluate these relationships including diversity indices, analysis of molecular variance, cluster analysis, and population structure. The means of diversity indices, the polymorphism information content (PIC), the allelic richness, and the Shannon information index were 0.

In vitro mycorrhization of pear (Pyrus communis).

The Mycelium Donor Plant system (MDP) was adapted to study the time course of the colonization of Pyrus communis by Rhizophagus irregularis under in vitro conditions. Isolated germinated spores did not colonize pear roots. Inoculum composed of R.

Phytochemical content, Fatty acids composition and antioxidant potential of different pomegranate parts: Comparison between edible and non edible varieties grown in Tunisia.

Few comparative studies were interested between edible and non-edible pomegranate varieties. In the present study, flowers, leaves, juice and peel of two pomegranate varieties, ornamental variety "Nana" (NV) and sweet variety "Tounsi" (TV) were compared for their phenolic contents and antioxidant activity. Seeds oils were compared also for their fatty acids (FA) composition.

Efficacy of Tissue Culture in Virus Elimination from Caprifig and Female Fig Varieties ( L.).

Fig mosaic disease (FMD) is a viral disease that spreads in all Tunisian fig ( L.) orchards. RT-PCR technique was applied to leaf samples of 29 fig accessions of 15 fig varieties from the fig germplasm collection of High Agronomic Institute (I.

Characterization and quantification of fruit phenolic compounds of European and Tunisian pear cultivars.

The flesh and peel of 19 pear cultivars (8 Tunisian dessert cultivars, 8 European dessert cultivars and 3 French perry pear cultivars) were studied for their phenolic composition. Phenolic compounds were identified by HPLC/ESI-MS and individually quantified by HPLC-DAD. Five classes of polyphenols were present: flavan-3-ols, phenolic acids, flavonols, anthocyanins and simple phenolics (hydroquinones).

Combination of morphological and molecular markers for the characterization of ancient native olive accessions in Central-Eastern Tunisia.

Increasing olive germplasm erosion in the coastline of Tunisia has required an imperious conservation of the traditional genotypes before an ultimate disappearance. This region has been relatively neglected in the literature sources of olive identification. In this context, a prospection effort and a preliminary selection of olive accessions belonging to Central-Eastern Tunisia was carried out.

Relationship between pollination and cell wall properties in common fig fruit.

Most botanical types in fig Ficus carica require pollination to fulfil their development and ensure quality onset of the fruit. Cell wall behaviour and composition was followed in fig fruit in response to pollination during maturity. Figs, when ripe, soften drastically and lose of their firmness and cell wall cohesion.