Effects of<i>Penicillium</i>extracts on germination vigour in subsequent seedling growth of tomato (<i>Solanum lycopersicum</i>L.)

Mushtaq, Sobia; Nasim, Ghazala; Khokhar, Ibatsam; Mukhtar, Irum

doi:10.1080/03235408.2011.603965

Cited by 8 publications

(6 citation statements)

References 16 publications

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“…In our study, only two species of Penicillium were isolated from either healthy and/or BLD roots of date palm trees, including P. bilaiae and P. citrinum . These two species are ubiquitous saprobes that promote seedling and plant growth ( Mushtaq et al, 2012 ). However, G. candidum is known as pathogenic fungus of citrus, tomato, cucumber, grapefruit, and carrot causing sour rot disease ( Suprapta et al, 1995 ).…”

Section: Discussionmentioning

confidence: 99%

Fungal Root Microbiome from Healthy and Brittle Leaf Diseased Date Palm Trees (Phoenix dactylifera L.) Reveals a Hidden Untapped Arsenal of Antibacterial and Broad Spectrum Antifungal Secondary Metabolites

et al. 2017

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In this study, we aimed to explore and compare the composition, metabolic diversity and antimicrobial potential of endophytic fungi colonizing internal tissues of healthy and brittle leaf diseased (BLD) date palm trees (Phoenix dactylifera L.) widely cultivated in arid zones of Tunisia. A total of 52 endophytic fungi were isolated from healthy and BLD roots of date palm trees, identified based on internal transcribed spacer-rDNA sequence analysis and shown to represent 13 species belonging to five genera. About 36.8% of isolates were shared between healthy and diseased root fungal microbiomes, whereas 18.4 and 44.7% of isolates were specific to healthy and BLD root fungal microbiomes, respectively. All isolates were able to produce at least two of the screened enzymes including amylase, cellulase, chitinase, pectinase, protease, laccase and lipase. A preliminary screening of the isolates using disk diffusion method for antibacterial activity against four Gram-positive and three Gram-negative bacteria and antifungal activities against three phytopathogenic fungi indicated that healthy and BLD root fungal microbiomes displayed interesting bioactivities against examined bacteria and broad spectrum bioactivity against fungal pathogens. Some of these endophytic fungi (17 isolates) were fermented and their extracts were evaluated for antimicrobial potential against bacterial and fungal isolates. Results revealed that fungal extracts exhibited antibacterial activities and were responsible for approximately half of antifungal activities against living fungi. These results suggest a strong link between fungal bioactivities and their secondary metabolite arsenal. EtOAc extracts of Geotrichum candidum and Thielaviopsis punctulata originating from BLD microbiome gave best results against Micrococcus luteus and Bacillus subtilis with minimum inhibitory concentration (MIC, 0.78 mg/mL) and minimum bactericidal concentration (6.25 mg/mL). G. candidum gave the best result against Rhizoctonia solani with MIC 0.78 mg/mL and minimum fungicidal concentration (MFC, 6.25 mg/mL). In conclusion, using plant microbiomes subjected to biotic stresses offers new endophytes with different bioactivities than those of healthy plants. Therefore, date palm endophytic fungi represent a hidden untapped arsenal of antibacterial and broad spectrum antifungal secondary metabolites and could be considered promising source of bioactive compounds with industrial and pharmaceutical applications.

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Section: Discussionmentioning

confidence: 99%

Fungal Root Microbiome from Healthy and Brittle Leaf Diseased Date Palm Trees (Phoenix dactylifera L.) Reveals a Hidden Untapped Arsenal of Antibacterial and Broad Spectrum Antifungal Secondary Metabolites

et al. 2017

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“…Early seedling emergence and enhanced vigor were observed in bacterial wilt susceptible tomato cultivar treated with T. harzianum, Phoma multirostrata, and Penicillium chrysogenum compared to untreated controls [34]. The culture filtrate of Penicillium was as effective as the living inocula in improving seed germination of tomato [70]. Significantly, higher germination and vigor index were observed in Indian spinach, when seeds were sown in sterilized field soil amended with wheat grain inoculum of Fusarium spp.…”

Section: Impact Of Pgpf On Seed Germination and Seedling Vigormentioning

confidence: 94%

Application and Mechanisms of Plant Growth Promoting Fungi (PGPF) for Phytostimulation

Hossain¹,

Sultana²

2020

Organic Agriculture

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Plant growth-promoting fungi (PGPF) constitute diverse genera of nonpathogenic fungi that provide a variety of benefits to their host plants. PGPF show an effective role in sustainable agriculture. Meeting increasing demand for crop production without damage to the environment is the biggest challenge nowadays. The use of PGPF has been recognized as an environmentally friendly way of increasing crop production. These fungi have proven to increase crop yields by improving germination, seedling vigor, plant growth, root morphogenesis, photosynthesis, and flowering through either a direct or indirect mechanism. The mechanisms of PGPF involve solubilizing and mineralizing nutrients for easy uptake by plants, regulating hormonal balance, producing volatile organic compounds and microbial enzyme, suppressing plant pathogens and ameliorating abiotic stresses. Successful colonization is an intrinsic factor for most PGPF to exert their beneficial effects on plants. A certain level of specificity exists in the interactions between plant species and PGPF for root colonization and growth promoting effects. There is a gap between the number of reported efficacious PGPF and the number of PGPF as biofertilizer. Efforts should be strengthened to improve the efficacy and commercialization of PGPF. Hence, this chapter summarizes valuable information regarding the application and mechanisms of PGPF in sustainable agriculture.

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“…PGPF treatments on plants have been well registered to enhance plant growth under greenhouse and field conditions [ 29 , 30 , 31 , 32 , 33 , 34 ]. Seed treatment with a conidial suspension of Aspergillus niger , T. harzianum and Penicillium citrinum has been reported to improve chickpea’s growth [ 17 ].…”

Section: Beneficial Aspects Of Rhizosphere-resident Pgpfmentioning

confidence: 99%

“…Apart from the above, the rate of photosynthetic activity increased in various crop plants upon PGPF treatments ( T. longipile , T. tomentosum , Aspergillus sp., Fusarium sp., and Penicillium sp.) with increase in the total chlorophyll content, which is directly co-related to enhanced plant growth [ 30 , 35 , 36 , 37 ].…”

Section: Beneficial Aspects Of Rhizosphere-resident Pgpfmentioning

confidence: 99%

“…treatment prominently increased plant height, leaf and fruit number in cucumber when tested under greenhouse conditions [ 28 ]. Besides this, Rhizoctonia sp., Phoma sp., T. longibrachiatum , R. delemar and non-sporulating fungus increased the yield of different crop plants [ 9 , 30 , 46 , 47 , 48 , 49 ].…”

Section: Beneficial Aspects Of Rhizosphere-resident Pgpfmentioning

confidence: 99%

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Bioprospecting of Rhizosphere-Resident Fungi: Their Role and Importance in Sustainable Agriculture

Murali

Naziya

Ansari

et al. 2021

JoF

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Rhizosphere-resident fungi that are helpful to plants are generally termed as ‘plant growth promoting fungi’ (PGPF). These fungi are one of the chief sources of the biotic inducers known to give their host plants numerous advantages, and they play a vital role in sustainable agriculture. Today’s biggest challenge is to satisfy the rising demand for crop protection and crop yield without harming the natural ecosystem. Nowadays, PGPF has become an eco-friendly way to improve crop yield by enhancing seed germination, shoot and root growth, chlorophyll production, and fruit yield, etc., either directly or indirectly. The mode of action of these PGPF includes the solubilization and mineralization of the essential micro- and macronutrients needed by plants to regulate the balance for various plant processes. PGPF produce defense-related enzymes, defensive/volatile compounds, and phytohormones that control pathogenic microbes’ growth, thereby assisting the plants in facing various biotic and abiotic stresses. Therefore, this review presents a holistic view of PGPF as efficient natural biofertilizers to improve crop plants’ growth and resistance.

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Effects ofPenicilliumextracts on germination vigour in subsequent seedling growth of tomato (Solanum lycopersicumL.)

Cited by 8 publications

References 16 publications

Fungal Root Microbiome from Healthy and Brittle Leaf Diseased Date Palm Trees (Phoenix dactylifera L.) Reveals a Hidden Untapped Arsenal of Antibacterial and Broad Spectrum Antifungal Secondary Metabolites

Fungal Root Microbiome from Healthy and Brittle Leaf Diseased Date Palm Trees (Phoenix dactylifera L.) Reveals a Hidden Untapped Arsenal of Antibacterial and Broad Spectrum Antifungal Secondary Metabolites

Application and Mechanisms of Plant Growth Promoting Fungi (PGPF) for Phytostimulation

Bioprospecting of Rhizosphere-Resident Fungi: Their Role and Importance in Sustainable Agriculture

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