Seven bacterial isolates, recovered from native Nicotiana glauca plants of the Tunisian Centre-East, and successfully colonizing internal stem tissues tomato cv. Rio Grande were screened for their ability to suppress Fusarium wilt, caused by Fusaium oxysporum f. sp. lycopersici, enhance plant growth. S18 S42 isolates found be most effective in decreasing yellowing wilt symptoms 94 88% vascular browning extent 95–97.5%, respectively, as compared FOL-inoculated untreated control. A significant...

ABSTRACT Olive oil‐extracting industry generates huge quantities of wastes commonly known as olive mill wastewater (OMWW) and solid waste (OMSW) that create a major environmental problem in olive‐producing countries. Agricultural reuse residues through soil application has been proposed valorisation strategy these wastes. The aim this study was to assess the efficiency improving properties promoting pomegranate growth. experiment included three treatments: fresh‐OMSW (F‐OMSW), exhausted‐OMSW...

Four nonpathogenic and putative endophytic bacterial isolates, recovered from Withania somnifera fruits (S7, S8 S9) stems (S15), were evaluated for their in vivo vitro antifungal activity against Fusarium oxysporum f. sp. lycopersici (FOL), plant-growth promoting ability. Tomato plants challenged and/or not with FOL treated using these isolates exhibited a significant increment growth parameters (plant height, aerial part fresh weight, maximum root length, weight). The strong suppressive...

Abstract Seven culturable bacterial isolates, obtained from the internal stem tissues of Solanum elaeagnifolium and successfully colonizing tomato cv. Rio Grande, were screened for their in vivo antifungal activity against Fusarium oxysporum f.sp. lycopersici ( FOL ) growth‐promoting potential on plants. SV 101 104 assessed pathogen‐challenged plants led to a significant decrease (77–83%) wilt severity vascular browning extent (76%), as compared inoculated untreated control. Isolates...

The aim of this study was to evaluate the in vitro antifungal activity aqueous and organic extracts from native Withania somnifera L. leaves, stems, fruits against Fusarium oxysporum f. sp. radicis-lycopersici (FORL), causal agent Crown Root Rot disease tomato. Aqueous (used at 1, 2, 3 4%) were added molten Potato Dextrose Agar (PDA) medium. After pathogen challenge, cultures incubated 25°C for 5 days. All tested, whatever concentrations used, showed a strong toward targeted pathogen. FORL...

Nine isolates of Aspergillus spp., isolated from soil and compost were tested in vitro vivo for their antifungal activity against Fusarium sambucinum Phytophthora erythroseptica, the causal agents dry rot pink potato tubers. Tested using dual culture method, pathogen growth F. P. erythroseptica was inhibited by 27 to 68% 16 25% all species, respectively. The highest inhibitory both pathogens induced isolate CH12 A. niger. A significant reduction mycelial inverse double method involves...

Ten nonpathogenic bacterial isolates, recovered from Datura stramonium organs, and successfully colonizing the internal stem tissues of tomato cv. Rio Grande were screened for their ability to suppress Fusarium wilt, caused by Fusaium oxysporum f. sp. lycopersici (FOL), enhance growth. S37 S40 isolates found be most effective in decreasing leaf yellowing 94-88% vascular browning extent 96-95%, respectively, as compared FOL-inoculated untreated control. A significant enhancement growth...

Potassium sorbate (PS), potassium bicarbonate (PB) and dipotassium hydrogenphosphate (DPHP) were assessed for their antifungal activity against Fusarium oxysporum f. sp. lycopersici (FOL), F. radicis-lycopersici (FORL), solani, Verticillium dahliae (VD), Rhizoctonia Colletotrichum coccodes, Pythium aphanidermatum, Sclerotinia sclerotiorum, Botrytis cinerea Alternaria solani. They screened ability to suppress wilts, Crown Root Rot (FCRR), effects on tomato growth, potential control of...

Sclerotium rolfsii is a serious soilborne phytopathogenic fungus causing yield loss in crops of high economic importance.In this study, the effects temperatures and culture media were evaluated on S. mycelial growth, sclerotial production germination.The three isolates tested grew over range from 10°C to 35°C but not at 5°C 40°C.Radial growth dry mycelium highest 30°C.Sclerotial initiation started 3 rd day after incubation 30°C 35°C, mature sclerotia observed 15 6 days incubation,...

Ten nonpathogenic Aspergillus spp.and Penicillium spp.isolates, naturally occurring within healthy potato plants and previously selected based on their ability to suppress Fusarium dry rot disease, were evaluated for in vitro antifungal potential against sambucinum, F. oxysporum graminearum effects wilt severity plant growth production.Tested through the dual culture technique PDA medium, all isolates tested had significantly decreased spp.growth relative untreated control.Growth inhibition,...

Tomato is a demanding crop in fertilizers, fungicides, and pesticides. Therefore, producing food with limit use of chemical farm inputs became essential to reduce the harmful effects these chemicals agro-ecosystems. Green manures have great potential dependency on preserve soil fertility. Two fodder radish cultivars, used as green manure, were tested, during three consecutive cropping years, for their properties fertility, tomato growth production, soilborne diseases' severity, rhizosphere...

The study examined the plant growth-promoting potential of 38 endophytic bacterial isolates recovered from healthy tomato plants. Eight were selected as most efficient in improving height by 30.5-35.9%, aerial part fresh weight 47.4 -56.9%, maximum root length 17.3- 28.3%, and 44.7- 58.8% compared to control. They morphologically biochemically characterized identified using 16S rDNA sequencing genes Stenotrophomonas maltophilia CT12, S. CT13, CT16, Pseudomonas geniculata CT19, B....

Six isolates of culturable bacteria, isolated from stems wild Solanaceae species (Datura metel, Solanum nigrum, S. elaeagnifolium, and Nicotiana glauca), were assessed for their antifungal activity against F. oxysporum f. sp.lycopersici (FOL), the causal agent tomato Fusarium wilt.Blast analysis 16S rDNA sequencing genes homology showed that belonged to genus Bacillus (Bacillus cereus str.S42, B. tequilensis str.SV39, subtilis str.SV41, methylotrophicus str.SV44, amyloliquefaciens...

Leaf, stem and fruit extracts of a wild medicinal plant, Lycium arabicum, were assessed for their ability to promote tomato growth suppress Fusarium Crown Root Rot (FCRR), damaging soilborne disease in Tunisia, caused by oxysporum f. sp. radicis-lycopersici (FORL). Aqueous organic (at 1, 2, 3 4% (v/v)) screened vitro antifungal activity. Disease severity was decreased significantly 60 days after inoculation. Leaf (LC2) (FC2) aqueous used at 30% (w/v) the most effective inducing 84.6 61.5%...

Twenty isolates of potato-associated fungi belonging to genera Aspergillus, Penicillium, Colletotrichum, and Trichoderma recovered from healthy potato organs (stems, roots, tubers) were screened for their antifungal potential toward Fusarium sambucinum F. solani the major agents dry rot disease in Tunisia. Tested using dual culture method, all had significantly lowered pathogen growth, noted after 7 days incubation at 25°C as compared untreated control, but with a variable range depending on...

In Tunisia, olive growing and oil production represent a key element of the agricultural economic sectors. Furthermore, producing areas are mostly located in semi-arid arid regions with low water availability. On other hand, industry generates high liquid effluent volumes (olive mill wastewater (OMW)) that major environmental concern, therefore must be appropriately managed. Accordingly, spreading OMW on lands scare may help to sustain dry productivity. this study, we investigated long-term...

A putative endophytic Bacillus cereus str. S42 (KP993206), recovered from surface-sterilised stems of Nicotiana glauca was assessed in vitro and vivo for its antifungal potential towards Fusarium oxysporum f. sp. lycopersici (FOL). Pathogen sporulation significantly inhibited by B. S42. FOL mycelial growth reduced using whole-cell suspensions, cell-free culture supernatant chloroform extract. Its extracellular metabolites remained effective after heating at 50–100 °C with a decline their...

The disease caused by Coniella granati (Saccardo) (syn.Pilidiella granati, Saccardo) is an expanding threat to pomegranate (Punica granatum L.) cultivation and industry rapidly emerging in almost all pomegranateproducing regions of the world.The current study presents first attempt characterize C. associated with dieback, shoot blight fruit rot Tunisia.Pathogenic isolates were identified based on their cultural morphological characteristics molecular data.Collected shown able grow between...