First report of Fusarium solani causing stem rot of Dracaena in Iran

Alizadeh, Mostafa; Zafari, Doustmorad; Sadeghi, Jamal

doi:10.1515/jppr-2016-0013

Cited by 6 publications

(6 citation statements)

References 6 publications

(9 reference statements)

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“…the only fungus recovered from stems, had the lowest occurrence (0.00 and 1.52 %). These findings were in harmony with reports from Egypt and other parts of the world on lucky bamboo (Mohanan, 1997, Komaki et al, 2012, Musavi and Balakrishnan, 2013, Sharma et al, 2014, Abedi-Tizaki et al, 2016& Morsy and Elshahawy, 2016.…”

Section: Fungi Associated With Stem and Leaf Spots Of Bamboosupporting

confidence: 89%

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Occurrence of Stem and Leaf Spots on Lucky Bamboo (Dracaena sanderiana hort. ex. mast.) Plants in Vase and its Cure with Safe Means

Abdel-Rahman

El-Morsy

Halawa

2020

Journal of Plant Protection and Pathology

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Lucky bamboo (Dracaena sanderiana) plants showing stem and leaf spots symptoms of each observed season were monitored during a survey that was conducted in four periods from 2018 to 2019. There were significant differences between the four periods, as well as the mean percentages of infection and disease severity were high (45.92, 44.41 % and 46.15, 55.67%, respectively) During the first (March-May) and third (August-October) study periods in 2018. The same disease symptoms occurred at the same time of observation during 2019 in the several surveyed nurseries, and the percentage of infection and disease severity recorded were in the same trend. There were twelve different fungal pathogens identified as Absidia spinosa, A. Cylindrospora, Alternaria alternata, Aspergillus flavus, A. niger, A. terreus, Aspergillus sp., Colletotrichum gloeosporioides, Fusarium avenaceum, F. oxysporum, F. solani, and Trichoderma harzianum where Colletotrichum gloeosporioides was the most common (26.93 and 26.34 for leaves and stems, respectively). The pathogenicity tests were carried out, where C. gloeosporioides were the most aggressive. The systemic fungicide Kemazed ® and biocontrol agents were demonstrated to be effective in controlling three of the most common aggressive fungi. i.e., C. gloesporioides, F. Oxysporum and A. alternata, In vitro colony growth of fungal isolates was significantly reduced as compared to the untreated control. The bioagents tested had significant antagonistic activity against C. gloesporioides growth on bamboo in a vase, according to the results, with Kemazed ® showing the most consistent highest inhibition effect, followed by Rhizo-N ® and Plant Guard ® , respectively, when compared to the untreated control.

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Section: Fungi Associated With Stem and Leaf Spots Of Bamboosupporting

confidence: 89%

“…2 showed a similar trend on the inoculated leafy segments. The obtained data were in harmony with that acquired by Komaki et al (2012), Abedi-Tizaki et al (2016, Wang et al (2016) and Adnan (2019).…”

Section: -Pathogenicity Testssupporting

confidence: 88%

Occurrence of Stem and Leaf Spots on Lucky Bamboo (Dracaena sanderiana hort. ex. mast.) Plants in Vase and its Cure with Safe Means

Abdel-Rahman

El-Morsy

Halawa

2020

Journal of Plant Protection and Pathology

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“…However, several reports indicated that lucky bamboo plants are seriously affected by root rot, basal stem rot and wilt disease complex 3 , 8 , 57 , 58 . Furthermore, several works indicated the presence of latent diseases in imported bamboo plants 5 , 6 , 58 .…”

Section: Discussionmentioning

confidence: 99%

“…Initial symptoms included a few yellowing rotted areas on the roots, a visible brown discoloration, and rotted areas on the base of the stems as the cortical tissues showed a distinct brown discoloration of water-soaked spots. These lesions became longer up and down and had-dark brown centers with a brown margin, and eventually severe wilting resulted in a significant loss of lucky bamboo plants 5 , 6 .…”

Section: Introductionmentioning

confidence: 99%

Characterization and control of Rhizoctonia solani affecting lucky bamboo (Dracaena sanderiana hort. ex. Mast.) using some bioagents

Abdel-Rahman

Abdel-Megeed

Salem

2023

Sci Rep

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In a survey conducted during the period of March–May 2019 in nurseries, warehouses, and shops at three governorates (Alexandria, El-Behera, and Giza governorates, Egypt), symptoms of root rot, basal stem rot, and wilt disease complex were observed in the lucky bamboo (Dracaena sanderiana hort. ex. Mast.). The highest disease infection percentage was found in lucky bamboo collected from Alexandria City (47.67%), while the highest disease severity was in lucky bamboo collected from El-Behera Governorate (35.19%). Rhizoctonia solani, Fusarium oxysporum, F. solani, Aspergillus niger, and Alternaria alternate were isolated and identified in the infected lucky bamboo samples. R. solani isolates were the most dominant among the recovered fungal species with a percentage of 80.89% of the total isolates (246). Pathogenicity tests showed that R. solani was the most pathogen with 100% disease infection and 76.67% disease severity. Molecular identification characterized R. solani isolate as R. solani AUMC 15120, MZ723906. Meanwhile, four biological control agents (bioagents) were isolated from the healthy lucky bamboo samples and identified based on cultural, morphological, microscopic characteristics, and the molecular phylogenetic analysis as Clonostachys rosea AUMC 15121, OL461708; Bacillus circulans TAG1, MW441316; B. siamensis TAP1, MW441318 and Ochrobactrum anthropi TAM1, MW441317. The four bioagents showed potential inhibition of R. solani in vitro as well as in vivo on lucky bamboo plants in vase treatments compared to the untreated inoculated control as well as certain fungicides and biocides used (Moncut, Rizolex-T, Topsin-M, Bio-Zeid, and Bio-Arc). The bioagent O. anthropi showed the highest inhibition growth (85.11%) of the in vitro R. solani colony, which was not significantly different from the biocide Bio-Arc (83.78%). However, C. rosea, B. siamensis and B. circulans showed inhibition values of 65.33, 64.44, and 60.44%, respectively. On the other hand, the biocide Bio-Zeid showed less inhibitory effect (43.11%), while the lowest growth inhibition was recorded by Rizolex-T (34.22%) and Topsin-M (28.67%). Furthermore, the in vivo experiment supported the in vitro results for the most effective treatments, where all the treatments significantly decreased the percentage of infection and disease severity compared to the inoculated untreated control. Additionally, the bioagent O. anthropi showed the highest effect, i.e., the lowest disease incidence and disease severity being 13.33% and 10%, compared to 100% and 75%, respectively, in the untreated inoculated control. This was not significantly different from the fungicide Moncut (13.33% and 21%) and from the bioagent C. rosea (20% and 15%) treatments for both parameters, respectively. In conclusion, the bioagents O. anthropi MW441317 at 1 × 108 CFU/ml as well as C. rosea AUMC15121 at 1 × 107/ml proved to be efficient to control R. solani causing root rot, and basal stem rot on lucky bamboo, compared to fungicide Moncut and can be used for disease management without the negative impact of the chemical control. Furthermore, this is the first report of the isolation and identification of Rhizoctonia solani, a pathogenic fungus, and four biocontrol agents (Bacillus circulans, B. siamensis, Ochrobactrum anthropi and Clonostachys rosea) associated with the healthy lucky bamboo plants.

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“…Until now, there is no report stating that fungal inoculation to agarwood-producing plants causes damage to the environment. Nonetheless, F. solani was reported as pathogenic to various plants (Rita et al 2013;Abedi-Tizaki et al 2016;Ganesh and Dwivedi 2019;Lestari et 2021;Poss et al 2022). Therefore, specific care needs to be taken before releasing introduced fungi to North Aceh.…”

Section: Molecular Characterizationmentioning

confidence: 99%

Isolation and molecular identification of agarwood-inducing fungi and their virulence test using Aquilaria sp. seedlings

Lukman

Dinarti²,

Siregar³

et al. 2023

Biodiversitas

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Abstract. Lukman, Dinarti D, Siregar UJ, Turjaman M, Sudarsono. 2023. Isolation and molecular identification of agarwood-inducing fungi and their virulence test using Aquilaria sp. seedlings. Biodiversitas 24: 140-148. Agarwood is a lump of fragrant resin with a dark color and distinctive aroma from secondary metabolite products that accumulate in wood fibers produced from the genus Aquilaria and Gyrinops, a plant defense mechanism against damage caused by wounds and infection of specific fungal pathogens. The three main factors in producing agarwood sapwood are the presence of plants that have the potential to produce agarwood (family Thymelaceae) as a host, a supportive environment, and the presence of specific fungal pathogens. The isolation, identification, and virulence testing of local isolates must be made to get the correct agarwood-inducing pathogens without posing potential environmental problems. A total of five explants of Aquilaria sp. branches producing agarwood from the study site were used. This study aims to isolate local strains of fungi associated with agarwood formation from North Aceh regency, Aceh province, Indonesia, figure out their virulence against and ability to induce agarwood from seedlings of target trees, and determine their species identity. The experiments comprised isolation, macroscopic and microscopic identification, virulence tests, and species identification based on ITS sequences. The study resulted in five local Aceh isolates (LAI-1- LAI-5). Four isolates (LAI-1 - LAI-4) can induce agarwood formation, and oneisolate (LAI-5) is a white rot fungus. The ITS sequence analysis showed that LAI-1 - LAI-4 were Fusarium solani, while two colonies taken from LAI-5 isolate were identified as Ceriporia lacerataor Irpex laceratus (LAI-5 colony#1), and Daldinia eschscholtzii (LAI-5 colony #3). Based on these findings, the LA-5 isolate was probably a mixture of the two white rot fungus isolates.

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First report of Fusarium solani causing stem rot of Dracaena in Iran

Cited by 6 publications

References 6 publications

Occurrence of Stem and Leaf Spots on Lucky Bamboo (Dracaena sanderiana hort. ex. mast.) Plants in Vase and its Cure with Safe Means

Occurrence of Stem and Leaf Spots on Lucky Bamboo (Dracaena sanderiana hort. ex. mast.) Plants in Vase and its Cure with Safe Means

Characterization and control of Rhizoctonia solani affecting lucky bamboo (Dracaena sanderiana hort. ex. Mast.) using some bioagents

Isolation and molecular identification of agarwood-inducing fungi and their virulence test using Aquilaria sp. seedlings

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