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Journal articles on the topic 'Sclerotium rolfsii'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Singh, U. P., B. K. Sarma, D. P. Singh, and Amar Bahadur. "Studies on exudate-depleted sclerotial development in Sclerotium rolfsii and the effect of oxalic acid, sclerotial exudate, and culture filtrate on phenolic acid induction in chickpea (Cicer arietinum)." Canadian Journal of Microbiology 48, no. 5 (2002): 443–48. http://dx.doi.org/10.1139/w02-040.

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Exudate depletion from developing sclerotia of Sclerotium rolfsii Sacc. in culture caused reduced size and weight of sclerotia. Germination of exudate-depleted sclerotia was delayed on Cyperus rotundus rhizome meal agar medium when compared with that of control sclerotia. The exudate-depleted sclerotia caused infection in chickpea (Cicer arietinum) plants in a glasshouse. Different temperatures and incubation periods had no effect on the germination ability of the exudate-depleted sclerotia. Oxalic acid, sclerotial exudate, and culture filtrate of S. rolfsii induced the synthesis of phenolic a

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2

Shim, M.-Y., and J. L. Starr. "Effect of Soil pH on Sclerotial Germination and Pathogenicity of Sclerotium rolfsii1." Peanut Science 24, no. 1 (1997): 17–19. http://dx.doi.org/10.3146/i0095-3679-24-1-5.

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Abstract The effect of soil pH on sclerotial germination and pathogenicity of two isolates of Sclerotium rolfsii on peanut was examined. Sclerotial germination for both isolates was greater (P ≤ 0.05) in acidic soil than at alkaline pHs. Similarly, percentage of peanut stems infected by S. rolfsii in greenhouse tests was greater at soil pH 5.6 than at alkaline soil pHs (P ≤ 0.05), but disease did develop at soil pH 8.7 and 9.8. In contrast to a previous in vitro study, these data confirm that sclerotia of S. rolfsii will germinate and initiate disease at soil pH &gt; 7.0.

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3

Insell, James P., N. P. A. Huner, W. Jay Newsted, and R. B. van Huystee. "Light microscopic and polypeptide analyses of sclerotia from mesophilic and psychrophilic pathogenic fungi." Canadian Journal of Botany 63, no. 12 (1985): 2305–10. http://dx.doi.org/10.1139/b85-329.

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The structure and polypeptide composition of sclerotia of three mesophilic pathogenic fungi, Sclerotinia sclerotiorum, Sclerotium rolfsii, and Botrytis cinerea, and one psychrophilic snow mold, Myriosclerotinia borealis, were compared. The sclerotia of S. sclerotiorum and B. cinerea were black, round, hard structures which were composed of three areas: the rind, the cortex, and the medulla. Both the cortical and medullary areas of these sclerotia exhibited intensely stained inclusions. In contrast, sclerotia of M. borealis were not present as discrete entities but coalesced near the central po

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4

Clark, C. A. "Influence of volatiles from healthy and decaying sweet potato storage roots on sclerotial germination and hyphal growth of Sclerotium rolfsii." Canadian Journal of Botany 67, no. 1 (1989): 53–57. http://dx.doi.org/10.1139/b89-008.

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Volatiles released from sweet potato storage root tissue infected by different sweet potato storage root pathogens stimulated eruptive germination of sclerotia of Sclerotium rolfsii but did not influence the direction of hyphal growth on agarose. Volatiles from healthy sweet potato storage root tissue did not affect percent hyphal or eruptive germination of sclerotia of S. rolfsii but stimulated directional growth of hyphae toward the healthy tissue. In laboratory experiments, the frequency of infection of sweet potato stem segments by S. rolfsii on the surface of natural soil was increased wh

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5

Huang, H. C., and S. K. Sun. "Comparative studies on myceliogenic germination of tan sclerotia of Sclerotinia sclerotiorum and Sclerotium rolfsii." Canadian Journal of Botany 67, no. 5 (1989): 1395–401. http://dx.doi.org/10.1139/b89-184.

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Tan-colored sclerotia of Sclerotium rolfsii and of an aberrant strain of Sclerotinia sclerotiorum that were freshly harvested from 5-week-old cultures on potato dextrose agar or stored at room temperature in paper bags for 4 weeks germinated myceliogenically on moist field soil without exogenous nutrients. A comparative study by time-lapse photomicroscopy revealed similarity in the mode of myceliogenic germination of sclerotia of the two species. The germination appeared to be of the hyphal type in both species and was characterized by the emergence of individual hyphae through the rind. There

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6

El-Ashmony, Ranya M. S., Nouf S. S. Zaghloul, Marija Milošević, et al. "The Biogenically Efficient Synthesis of Silver Nanoparticles Using the Fungus Trichoderma harzianum and Their Antifungal Efficacy against Sclerotinia sclerotiorum and Sclerotium rolfsii." Journal of Fungi 8, no. 6 (2022): 597. http://dx.doi.org/10.3390/jof8060597.

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Silver nanoparticles (AgNs) are known as a promising alternative tool to control fungal diseases. AgNs were biologically synthesized using Trichoderma harzianum filtrate as an ecofriendly approach. The presence of AgNs was confirmed by changing the color to brown, followed by UV-Vis spectroscopy, transmission electron microscopy (TEM), and Energy-dispersive spectra (EDS). TEM studies showed that the size of AgNs average was 31.13 nm and the shape was spherical. In vitro assays of AgNs showed a significant inhibitory effect on the growth of Sclerotinia sclerotiorum (S. sclerotiorum) and Sclerot

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7

Kushwaha, Shiva Kant, Sanjeev Kumar, and Balkishan Chaudhary. "Efficacy of Trichoderma against Sclerotium rolfsii causing collar rot disease of lentil under in vitro conditions." Journal of Applied and Natural Science 10, no. 1 (2018): 307–12. http://dx.doi.org/10.31018/jans.v10i1.1622.

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Three biocontrol agents viz., Trichoderma viride, T. virens and T. harzianum were evaluated to test the antagonism against Sclerotium rolfsii under in vitro conditions. All the three antagonists’ viz., T. viride, T. virens and T. harzianum have shown the potential of parasitizing the growth of Sclerotium rolfsii in vitro. The rate of inhibition was fastest in T. harzianum (63.60%) followed by T virens (51.5 %). Least inhibition was recorded in T. viride (50.85% ) after 72 hours of incubation. However, T. viride showed the highest (91.31%) reduction in sclerotia formation followed by T. harzian

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8

Ray, K., K. Sen, P. P. Ghosh, et al. "Dynamics of Sclerotium rolfsii as influenced by different crop rhizosphere and microbial community." Journal of Applied and Natural Science 9, no. 3 (2017): 1544–50. http://dx.doi.org/10.31018/jans.v9i3.1399.

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This study was carried out with the aim of evaluating pathogenicity of Sclerotium rolfsii to different crops influenced by different crop rhizosphere microbes and their population dynamics. Napier was found to be non-preferred host against S. rolfsii pathogen. Among the seven tested crops in micro-plot study, highest level of induction of sclerotial population was observed in groundnut and cow peas (21.81 and 20.06 numbers of sclerotia /100 g of soil, respectively), whereas, reduction in sclerotial number was observed in napier, maize and sorghum plots. S. rolfsii induced damping off was found

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9

Xu, Z., M. L. Gleason, D. S. Mueller, et al. "Overwintering of Sclerotium rolfsii and S. rolfsii var. delphinii in Different Latitudes of the United States." Plant Disease 92, no. 5 (2008): 719–24. http://dx.doi.org/10.1094/pdis-92-5-0719.

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Previously known only from the southern United States, hosta petiole rot recently appeared in the northern United States. Sclerotium rolfsii var. delphinii is believed to be the predominant petiole rot pathogen in the northern United States, whereas S. rolfsii is most prevalent in the southern United States. In order to test the hypothesis that different tolerance to climate extremes affects the geographic distribution of these fungi, the survival of S. rolfsii and S. rolfsii var. delphinii in the northern and southeastern United States was investigated. At each of four locations, nylon screen

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10

Gunaseeli, C., and A. Muthukumar. "Isolation and Morphological Characteristics of Sclerotium rolfsii Inciting Collar Rot in Brinjal." Journal of Advances in Biology & Biotechnology 28, no. 5 (2025): 1057–63. https://doi.org/10.9734/jabb/2025/v28i52365.

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Sclerotium rolfsii, a soil-borne omnipathogenic fungus, is a major threat to crop production due to its wide host range and aggressive pathogenicity. This study aimed to isolate and characterize twenty S. rolfsii isolates from infected brinjal plants using standard tissue segment methods on PDA medium. Cultural and morphological assessments revealed significant variability among isolates in colony morphology, mycelial growth, and sclerotial traits. Radial growth ranged from 59-90 mm at 72 hours, while sclerotial formation varied from 9-34 days. The number of sclerotia per plate ranged between

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11

Wang, Fanfan, Xiaoyue Wang, Tao Tang, et al. "De Novo RNA Sequencing and Transcriptome Analysis of Sclerotium rolfsii Gene Expression during Sclerotium Development." Genes 14, no. 12 (2023): 2170. http://dx.doi.org/10.3390/genes14122170.

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Sclerotium rolfsii is a destructive soil-borne fungal pathogen that causes stem rot in cultivated plants. However, little is known about the genetic basis of sclerotium development. In this study, we conducted de novo sequencing of genes from three different stages of S. rolfsii (mycelia, early sclerotium formation, and late sclerotium formation) using Illumina HiSeqTM 4000. We then determined differentially expressed genes (DEGs) across the three stages and annotated gene functions. STEM and weighted gene-co-expression network analysis were used to cluster DEGs with similar expression pattern

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12

Harvey, Stephanie G., Heather N. Hannahan, and Carl E. Sams. "Indian Mustard and Allyl Isothiocyanate Inhibit Sclerotium rolfsii." Journal of the American Society for Horticultural Science 127, no. 1 (2002): 27–31. http://dx.doi.org/10.21273/jashs.127.1.27.

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Allyl isothiocyanate (AITC) is the predominant isothiocyanate produced by damaged tissues of Indian mustard (Brassica juncea (L) Czerniak). This study investigated Indian mustard and AITC mediated suppression of mycelial growth and sclerotial germination of Sclerotium rolfsii Saccardo, a common soilborne pathogen. Indian mustard (IM) treatments of 0, 0.1, 0.2, 0.6, 1.0, 2.0, 4.1, 5.1, 10.2, 20.4, 40.8, 81.6, and 163.3 g·L-1 (weight of reconstituted mustard per liter of air) were evaluated for suppression of mycelial growth. Treatment effect was evaluated by measuring the radial growth of mycel

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13

Sagar, B. Vidya, S. Ameer Basha, A. Sajeli Begum, et al. "Evaluation of Homoeopathic Drugs against Sclerotium rolfsii Sacc. in Groundnut (Arachis hypogea L.)." International Journal of Bio-resource and Stress Management 15, Aug, 8 (2024): 01–08. http://dx.doi.org/10.23910/1.2024.5474.

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The study was conducted from June to October, 2022 at the Department of Plant Pathology, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, India to screen the thirty homeopathic drugs under in-vitro condition against the groundnut stem rot pathogen Sclerotium rolfsii. Bio-efficacy of homeopathic drugs was tested by agar well diffusion method to identify the potential drug against stem rot pathogen. In this method, notably, Chelidonium (88.88%) and Colchicum (82.21%) emerged as particularly potent, significantly inhibiting Sclerotiu

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14

Csinos, A. S. "Activity of Tolclofos - Methyl (Rizolex) on Sclerotium rolfsii and Rhizoctonia solani in Peanut1." Peanut Science 12, no. 1 (1985): 32–35. http://dx.doi.org/10.3146/pnut.12.1.0008.

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Abstract Tolclofos-methyl was compared to PCNB in vitro to determine its relative activity against four isolates of Sclerotium rolfsii Sacc. and two isolates of Rhizoctonia solani Kuehn. Concentrations of 0.001, 0.01, 0.1, 1.0 and 10 μg/mL of each of the fungicides were used to evaluate their effects on radial growth on both S. rolfsii and R. solani and their effects on sclerotia formation and sclerotial germination of S. rolfsii. Little difference in efficacy between the fungicides occurred for S. rolfsii. However, tolclofos-methyl reduced radial growth of R. solani more than PCNB at concentr

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15

Pratt, R. G., and D. E. Rowe. "Enhanced Resistance to Sclerotium rolfsii in Populations of Alfalfa Selected for Quantitative Resistance to Sclerotinia trifoliorum." Phytopathology® 92, no. 2 (2002): 204–9. http://dx.doi.org/10.1094/phyto.2002.92.2.204.

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Sclerotinia trifoliorum and Sclerotium rolfsii are pathogens for which similar mechanisms of parasitism have been proposed. This suggested that resistance to these pathogens may be related in a common host plant. This study was undertaken to determine whether selection for quantitative resistance to Sclerotinia trifoliorum in alfalfa also increases resistance to Sclerotium rolfsii as expressed in excised leaf tissues and whole plants. Resistance in excised leaf tissues was evaluated according to the rate of necrosis induced by Sclerotium rolfsii following inoculation with mycelium. Resistance

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16

Pethybridge, Sarah J., Sandeep Sharma, Alex Silva, et al. "Southern Sclerotium Root Rot Caused byAthelia rolfsiion Table Beet in New York." Plant Health Progress 20, no. 1 (2019): 4–6. http://dx.doi.org/10.1094/php-07-18-0037-br.

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Southern Sclerotium root rot caused by Athelia rolfsii (syn. Sclerotium rolfsii) is a damaging soilborne disease of field and specialty crops. In 2015, 2016, and 2017, wilted plants, root rot, and decay in six table beet (Beta vulgaris spp. vulgaris) fields across New York were observed. In these outbreaks, losses ranged between 5 and 25%. White mycelial mats and golden brown sclerotia (1 to 2 mm diameter) were observed on diseased plants and decayed roots. The objective of this study was to identify the fungus associated with these symptoms and assess pathogenicity in table beet.

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17

Rahman, Mominur, Faridul Alam, Md. Nazrul Islam, Ahammed Anik Md. Farid, and Mohammad Eyakub Ali. "Biocontrol of Foot and Root Rot Disease of Groundnut (Arachis hypogaea) by Dual Inoculation with Rhizobium and Arbuscular Mycorrhiza." American Journal of Agricultural Science, Engineering, and Technology 7, no. 1 (2023): 67–76. https://doi.org/10.54536/ajaset.v7i1.1296.

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The present study was carried out to investigate the potential of AM (Arbuscular mycorrhiza) fungi alone and in combination with bioinoculants i.e., <em>Rhizobium</em> to find out the best combination on dry biomass, nodulation, colonization, and yield, along with their biocontrol against groundnut foot and root rot caused by <em>Sclerotium rolfsii</em>. The study was carried out under pot culture conditions in the net house of the Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur in 2020 and 2021. The experiment was designed in RCBD with eigh

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18

Santos, Ananda Rosa Beserra, Larisse Raquel Carvalho Dias, Paulo Henrique Soares da Silva, Delson Laranjeira, Candido Athayde Sobrinho, and Luana Maria Alves da Silva. "Seed treatment with essential oils to control Sclerotium rolfsii Sacc." DELOS: Desarrollo Local Sostenible 17, no. 55 (2024): e1451. http://dx.doi.org/10.55905/rdelosv17.n55-015.

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The sclerotia wilt in cowpea caused by the fungus Sclerotium rolfsii has in chemical control an inefficient option. Essential oils have antifungal properties, constituting an alternative to agrochemicals. Here, we evaluated the efficiency of essential oils in the control of S. rolfsii, from seed treatment, as well as their effect on seed germination. Based on the diameter of the colonies of the fungus S. rolfssi submitted to a concentration of 8.0 ml/kg of seed-1, the oils of L. sidoides, L. origanoides and C. zehntneri reduced mycelial growth by 61.5, 67.2 and 40% respectively. The reduction

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19

Papapostolou, Ioannis, and Christos D. Georgiou. "Superoxide radical induces sclerotial differentiation in filamentous phytopathogenic fungi: a superoxide dismutase mimetics study." Microbiology 156, no. 3 (2010): 960–66. http://dx.doi.org/10.1099/mic.0.034579-0.

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This study shows that the superoxide radical (O2 •−), a direct indicator of oxidative stress, is involved in the differentiation of the phytopathogenic filamentous fungi Rhizoctonia solani, Sclerotinia sclerotiorum, Sclerotium rolfsii and Sclerotinia minor, shown by using superoxide dismutase (SOD) mimetics to decrease their sclerotial differentiation. The production rate of O2 •− and SOD levels in these fungi, as expected, were significantly lowered by the SOD mimetics, with concomitant decrease of the indirect indicator of oxidative stress, lipid peroxidation.

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20

Rahman, M., ME Ali, F. Alam, MB Banu, MI Faruk, and MAH Bhuiyan. "Biocontrol of Foot and Root Rot Disease of Grasspea (Lathyrus sativus) by Dual Inoculation with Rhizobium and Arbuscular Mycorrhiza." Bangladesh Journal of Microbiology 34, no. 2 (2019): 109–17. http://dx.doi.org/10.3329/bjm.v34i2.39622.

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The present study was carried out to evaluate the effect of indigenous arbuscular mycorrhizal fungi (AMF) and Rhizobium (R) on plant growth and their biocontrol against grasspea foot and root rot disease caused by Sclerotium rolfsii. The bio-control potential of these bio-agents against foot and root rot pathogen was carried out under pot culture condition using AMF alone or in combination with rhizobial inoculum in the nethouse of Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during 2014-2015 through 2015-2016. The experiment was designed in RCBD with 8

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21

Bastakoti, Srijana, Shiva Belbase, Shrinkhala Manandhar, and Charu Arjyal. "Trichoderma species as Biocontrol Agent against Soil Borne Fungal Pathogens." Nepal Journal of Biotechnology 5, no. 1 (2017): 39–45. http://dx.doi.org/10.3126/njb.v5i1.18492.

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Soil borne pathogenic fungi are of major concern in agriculture which significantly decreases the plant yield. Chemically controlled plant imposes environmental threats potentially dangerous to humans as well as other animals. Thus, application of biological methods in plant disease control is more effective alternative technique. This study was carried out to isolate Trichoderma species from soil sample and to assess its in vitro biocontrol efficacy against fungal pathogens viz. Sclerotium rolfsii, Sclerotionia sclerotiorum, Fusarium solani and Rhizoctonia solani. Biocontrol efficacy testing

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22

Ayed, Fakher, Hayfa Jabnoun-Khiareddine, Rania Aydi-Ben-Abdallah, and Mejda Daami-Remadi. "Effects of pH and Aeration on Sclerotium rolfsii sacc. Mycelial Growth, Sclerotial Production and Germination." International Journal of Phytopathology 7, no. 3 (2018): 123–29. http://dx.doi.org/10.33687/phytopath.007.03.2688.

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Sclerotium rolfsii is one of the devastating soilborne fungus responsible for significant plant losses. The effects of pH and aeration on pathogen mycelial growth, sclerotial production and germination were investigated for three Tunisian isolates. Optimal mycelial growth occurred at pH 6 for Sr2 and Sr3 isolates and at pH 6-7 for Sr1. Dry mycelial growth was optimum at pH values ranging between 4 and 7. Sclerotial initiation started on the 3rd day of incubation at all pH values tested and mature sclerotia were formed after 6 to 12 days. Optimal sclerotial production was noted at pH 5. The dry

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23

Rahman, M., ME Ali, F. Alam, MN Islam, and MAH Bhuiyan. "Combined Effect of Arbuscular Mycorrhiza, Rhizobium and Sclerotium rolfsii on Grass Pea (Lathyrus sativus)." Agriculturists 15, no. 1 (2017): 143–55. http://dx.doi.org/10.3329/agric.v15i1.33438.

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The present study was carried out to evaluate the combined effect of indigenous arbuscular mycorrhizal (AM) fungi, Rhizobium and Sclerotium rolfsii on Grasspea (Lathyrus sativus) in the net house of Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during 2014-2015 through 2015-2016. The experiment was designed in RCBD with 8 treatments and 4 replications. Grasspea variety BARI Khesari-1 was used as a test crop. Peat based rhizobial inoculum (BARI RLs-10) was used in this experiment @ 50 g kg-1 seed. The AM fungi used in this experiment were Glomus fusianum,

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24

Cerrón V., Venancio V., and Gustavo Osorio P. "IDENTIFICACIÓN DE MICROORGANISMOS PATÓGENOS EN EL CULTIVO DE (Stevia Rebaudiana Bertoni)." Prospectiva Universitaria 8, no. 2 (2022): 36–40. http://dx.doi.org/10.26490/uncp.prospectivauniversitaria.2011.8.1268.

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En campos comerciales de Stevia rebaudiana localizados en los centro poblados Las Palmas y Esperanza la se determinó la incidencia y severidad de enfermedades ocasionales por microorganismos patógenos. La investigación se desarrolló en fases de reconocimiento de la sintomatología, identificación de agentes causales y determinación de pruebas de patogenicidad. Se encontraron 8 hongos, como agentes causales de los marchitamientos, necrosis de la raíz, manchas foliares y necróticas. 8 hongos, Fusarium sp., Rhizoctonia sp., Sclerotinia sclerotiorum, Sclerotium rolfsii. Cuyos daños ocasionan en los

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Patil, S. V., and J. Raja. "Antagonism Of Trichoderma Species Against Major Soil Borne Plant Pathogens." Journal of Plant Disease Sciences 17, no. 1 (2022): 39–43. http://dx.doi.org/10.48165/jpds.2022.1708.

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In the current study, ten isolates of Trichoderma harzianum and T. hamatum collected from different agro climatic zones of Maharashtra were tested for antagonism against important soil borne phytopathogenic fungi (Fusarium ciceri, Rhizoctonia bataticola and Sclerotium rolfsii) using dual culture assay. In comparison to the controls, all T. harzianum isolates had a significant antagonistic effect on pathogen mycelial growth in dual cultures. T. harzianum (AkTr2) inhibited radial mycelial growth by 77.78%, 78.52% and 75.93% in Fusarium ciceri, Rhizoctonia bataticola and Sclerotium rolfsii respec

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26

Shrestha, Utsala, Mary E. Dee, Bonnie H. Ownley, and David M. Butler. "Anaerobic Soil Disinfestation Reduces Germination and Affects Colonization of Sclerotium rolfsii Sclerotia." Phytopathology® 108, no. 3 (2018): 342–51. http://dx.doi.org/10.1094/phyto-04-17-0152-r.

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Growth chamber and field studies were conducted with organic amendment mixtures of carbon (C) and nitrogen (N) at C:N ratios 10:1, 20:1, 30:1, and 40:1 and amendment rates of C at 2, 4, 6, and 8 mg/g of soil (C:N ratio 30:1) to evaluate anaerobic soil disinfestation (ASD) effects on germination and colonization of Sclerotium rolfsii. In the growth chamber, sclerotial germination was reduced in all ASD treatments regardless of C:N ratio (0.6 to 8.5% germination) or amendment rate (7.5 to 46%) as compared with nonamended controls (21 to 36% and 61 to 96%, respectively). ASD treatment increased T

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27

Tomazeli, Vanessa Nataline, Idalmir Dos Santos, Rafael Gustavo Ferreira Morales, and Alex Sandro Torre Figueiredo. "SOIL SOLARIZATION IN THE CONTROL OF BEAN DISEASES CAUSED BY Sclerotium rolfsii." BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura 94, no. 1 (2019): 1. http://dx.doi.org/10.37856/bja.v94i1.184.

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This study aimed at assessing the effects of soil solarization on diseases caused by Sclerotium rolfsii in bean plants. Treatments consisted of solarization of a soil previously infested with S. rolfsii and a standard treatment (no solarization). A randomized block experimental design was adopted, with four replications. We assessed disease severity by measuring emergence, final stand, incidence, and severity of the disease. Soil microbial activity and number of viable sclerotia were evaluated after the second crop was grown in the first year of the experiment. Soil solarization reduced the in

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28

Rahman, Mominur, Faridul Alam, Md Nazrul Islam, Md Farid Ahammed Anik, and Mohammad Eyakub Ali. "Biocontrol of Foot and Root Rot Disease of Groundnut (Arachis hypogaea) by Dual Inoculation with Rhizobium and Arbuscular Mycorrhiza." American Journal of Agricultural Science, Engineering, and Technology 7, no. 1 (2023): 67–76. http://dx.doi.org/10.54536/ajaset.v7i1.1296.

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The present study was carried out to investigate the potential of AM (Arbuscular mycorrhiza) fungi alone and in combination with bioinoculants i.e., Rhizobium to find out the best combination on dry biomass, nodulation, colonization, and yield, along with their biocontrol against groundnut foot and root rot caused by Sclerotium rolfsii. The study was carried out under pot culture conditions in the net house of the Soil Science Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur in 2020 and 2021. The experiment was designed in RCBD with eight treatments and four replication

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29

Koulali, Yahya, Ahmed Talouizte, Jean-Louis Fonvieille, and Robert Dargent. "Influence de la monensine sur la croissance et la sécrétion des exopolysaccharides chez le Botrytis cinerea Pers. et le Sclerotium rolfsii Sacc." Canadian Journal of Microbiology 42, no. 9 (1996): 965–72. http://dx.doi.org/10.1139/m96-124.

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The addition of various concentrations of monensin (1, 5, and 10 μg/mL) to the culture medium inhibits the fungal growth and perturbs exopolysaccharides secretion, provoking a decrease of production in Botrytis cinerea and an increase in Sclerotium rolfsii. The ionophore induces also modifications in both polymer composition and structure. New monomers were observed in the two species and a decreased branching rate for Sclerotium rolfsii. These modifications show that monensin affects the enzymes responsible for normal wall synthesis and therefore vesicular traffic.Key words: monensin, growth,

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30

Bhagat, Imdramani. "Factors influencing mycelial growth of Sclerotium rolfsii." Nepalese Journal of Biosciences 1 (January 23, 2013): 26–31. http://dx.doi.org/10.3126/njbs.v1i0.7466.

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Sclerotial blight of tea (Camellia sinensis L.) caused by Sclerotium rolfsii Sacc. is one of the destructive diseases in tea growing areas of the world. In the present investigation, an attempt was made to know the optimum conditions for the mycelial growth of S. rolfsii. Factors influencing mycelial growth of S. rolfsii were studied with special reference to their growth in different media, variable pH and variable sources of carbon (viz., 6 types) as well as organic (viz., 4 types) and inorganic (viz., 4 types) nitrogen sources. Maximum growth of pathogen occurred after 8 days of inoculation

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Uruilal, Costanza, Abraham Talahaturuson, Wihelmina Rumahlewang, and Jogeneis Patty. "ISOLASI Trichoderma spp. DAN DAYA ANTAGONISMENYA TERHADAP SCLEROTIUM ROLFSII SACC. PENYEBAB PENYAKIT LAYU PADA TANAMAN CABAI (Capsicum anuum) SECARA IN-VITRO." JURNAL BUDIDAYA PERTANIAN 13, no. 2 (2017): 64–67. http://dx.doi.org/10.30598/jbdp.2017.13.2.64.

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The objective of this study is to isolation and agonistic test ability of Trichoderma spp. againts Sclerotium rolfsii Sacc. cause of wilting on pepper plants and has been conducted in Pathogenicity Laboratory Faculty of Agriculture Unpatti. The study use 5 treatment of isolate Trichoderma spp. (Tc3, Tc4, Tc5, Tc6 and Tc7) with 3 replications so that there are 15 experimental units. The results showed that the five isolates Trichoderma spp. has an antagonistic power to S. rolfsii with an average percentage of inhibition of S. rolfsii of 26,01%. Percentage of inhibition bolth of isolate ware not

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YOUNG, NICOLA, and ANNE E. ASHFORD. "Apoplastic permeability of sclerotia of Sclerotium rolfsii, Sclerotium cepivorum and Rhizoctonia solani." New Phytologist 131, no. 1 (1995): 33–40. http://dx.doi.org/10.1111/j.1469-8137.1995.tb03052.x.

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Akem, C. N., and H. A. Melouk. "Colonization of sclerotia of Sclerotinia minor by a potential biocontrol agent, Penicillium citrinum1." Peanut Science 14, no. 2 (1987): 66–70. http://dx.doi.org/10.3146/i0095-3679-14-2-4.

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Abstract Sclerotia of Sclerotinia minor were soaked in a conidial suspension (1.3 × 107 conidia/mL) of Penicillium citrinum at 25 ± 2 C for 1 h. This resulted in coating each sclerotium with about 3.7 × 104 conidia. Treated sclerotia were incubated either in the dark on dry or damp Whatman No. 1 filter paper or in pasteurized and nonpasteurized soil at 25 ± 2 C, for up to eight weeks. Colonization by P. citrinum of sclerotia incubated on damp or dry filter paper was 70 and 25%, respectively. Seventy four percent of sclerotia incubated in pasteurized soil were colonized and destroyed by P. citr

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Kousik, Chandrasekar S., Jennifer Ikerd, and Mihir Mandal. "First Report of Fruit Rot of Ridge Gourd (Luffa acutangula) Caused by Sclerotium rolfsii." Plant Health Progress 17, no. 1 (2016): 18–19. http://dx.doi.org/10.1094/php-br-15-0048.

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Ridge gourd is a specialty cucurbit vegetable cultivated in the United States on a small scale for select markets. We report the infection of ridge gourd fruit by Sclerotium rolfsii (teleomorph: Athelia rolfsii). This appears to be the first report of Sclerotium rot of ridge gourd. In fields with history of S. rolfsii, the gourds should be grown on trellis to prevent fruit contact with wet soil. Several fungicides are available to manage S. rolfsii and may have to be applied if and when needed. Accepted for publication 12 January 2016. Published 14 January 2016.

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Nadio, Nafadjara Abouwaliou, Essolakina Magnim Bokobana, Komlan Pikassalé Akantetou, et al. "Activité antifongique des extraits aqueux des graines d’Azadirachta indica A. Juss. sur le développement de Sclerotium rolfsii, agent pathogène des rhizomes de Zingiber officinale." International Journal of Biological and Chemical Sciences 16, no. 2 (2022): 609–17. http://dx.doi.org/10.4314/ijbcs.v16i2.8.

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With the aim of contributing to the fight against phytopathogens, an evaluation of the antifungal activity of the aqueous extracts of the seeds of Azadirachta indica on the development of Sclerotium rolfsii, a pathogenic fungus of the rhizomes of Zingiber officinale , was carried out through bioassays on mycelial growth and sclerotia formation. The biological tests were carried out in vitro by systemic application on S. rolfsii . The results obtained revealed a sensitivity of the fungus S. rolfsiidifferent concentrations of seed extracts and the commercial fungicide product Mancozeb. The conce

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Nwaru, Ezeibe Chidi, Tobechukwu Eke, Nkechi P. Onyeabor Chinedum, and Matthew Ahaiwe. "Comparative study on identification and pathogenicity of fungal pathogens associated with post-harvest rot of tomatoes (solanum lycopersicum l.) in Umuahia and Okigwe." International Journal of Agriculture Environment and Food Sciences 9, no. 1 (2025): 199–209. https://doi.org/10.31015/2025.1.22.

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Tomato fruits sold in the market and at home present symptoms during storage, but the disease causal agents must be better documented. This study aimed to identify the fungal pathogens associated with tomato rot bought in markets at Umuahia and Okigwe and to evaluate its pathogenicity and disease prevalence. A total of 24 and 16 fungal isolates were recorded, respectively, and were microscopically identified and morphologically to specific fungal isolates. The identified isolates were Alternaria solani, Althelia rolfsii, Colletotrichium phlomoides, Phytophthora nicotinae, Sclerotinia sclerotio

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Muhaimin, Muhaimin. "Biostatic Activity of Eusiderin I From Eusideroxylon Zwagery Against Sclerotium Rolfsii." Journal of The Indonesian Society of Integrated Chemistry 16, no. 2 (2024): 136–39. https://doi.org/10.22437/jisic.v16i2.38288.

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241 (4,99) and 273 (4,83) and the infra-red spectra of this compound showed the sharp aromatic C-H stretching vibration at 3079 cm-1, aliphatic C-H stretching vibration at 2975 and 2933 cm-1, aromatic C-H bending vibration also shown in finger print 998, 829 and 637 cm-1. These vibration regions also indicate the substituted aromatic system. The sharp aromatic C=C stretching vibration Research on biostatic activity of Eusiderin I from Eusideroxylon zwagery against Sclerotium rolfsii had been carried out. The isolated Eusiderin I was a white crystal with melting point in such 99-100 oC. The UV

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Orlikowski, Leszek, and Magdalena Ptaszek. "First Report of Sclerotium Rot of Foliage Ornamental Plants in Poland." Journal of Plant Protection Research 53, no. 2 (2013): 190–93. http://dx.doi.org/10.2478/jppr-2013-0029.

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Abstract Stem and leaf rot incited by Sclerotium rolfsii was found on Epipremnum aureum, Hedera helix, and Peperomia obtusifolia rooting cuttings. S. rolfsii was isolated from about 90% of the analysed plant materials. Isolate from E. aureum colonized all the parts of the 3 host plants as well as eustoma and lavender. Necrosis spread significantly faster on peperomia and the nonhost plants. The fungus produced dense, floccose, white mycelium with numerous, small, brown sclerotia. The optimum temperature for development was 30°C.

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Kwon, Jin-Hyeuk, Hee-Dae Kim, Ok-Hee Choi, Youn-Sig Kwak, Yong-Hwan Lee, and Hong-Sik Shim. "Sclerotium Rot of Onion Caused by Sclerotium rolfsii." Research in Plant Disease 17, no. 2 (2011): 222–24. http://dx.doi.org/10.5423/rpd.2011.17.2.222.

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R, Sahana, Viswanath K, Manjula, Nagamani P, Archana B. R, and Kalpana. "Unveiling the Hidden Enemies: Morphological and Molecular Characterization of Pod Rot Pathogens in Groundnut (Arachis hypogea L.) in India." Archives of Current Research International 24, no. 9 (2024): 245–59. http://dx.doi.org/10.9734/acri/2024/v24i9890.

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Pod rot of groundnut is a complex disease caused by multiple pathogens causes significant economic losses. Present study was undertaken to know the pathogens associated with the disease. In Chittoor, Andhra Pradesh, roving survey against pod rot of groundnut revealed association of three fungal species: Sclerotium rolfsii, Rhizoctonia bataticola and Fusarium spp. Molecular analysis with modified CTAB method and performing PCR using ITS1 and ITS4 primers yielded DNA bands of 650-700 bp, 550-600 bp, and 500-600 bp for Sclerotium, Rhizoctonia and Fusarium species, respectively. Sequencing of the

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Sutthisa, Waraporn, Wipada Hompana, and Rattikan Yutthasin. "Enhancing Biocontrol Potential: Development and Efficacy Assessment of a Liquid Formulation of Trichoderma Asperellum MSU007 against Sclerotium Rrolfsii." Trends in Sciences 21, no. 4 (2024): 7550. http://dx.doi.org/10.48048/tis.2024.7550.

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Global agricultural systems face significant challenges due to the devastating impact of Sclerotium rolfsii, a plant pathogen responsible for substantial crop yield losses. Considering this problem, this study aims to enhance biocontrol potential against S. rolfsii by developing and evaluating a liquid formulation of Trichoderma asperellum MSU007. We prepared 4 distinct liquid formulations of T. asperellum MSU007, incorporating various protectants: 10 % molasses, 5 % molasses, 5 % lactose and 5 % trehalose. After 45 days at 28 ± 2 °C, T. asperellum MSU007 spore counts remained consistent at 10

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Pinheiro, Victor dos Reis, Claudine Dinali Santos Seixas, Cláudia Vieira Godoy, Rafael Moreira Soares, Maria Cristina Neves de Oliveira, and Álvaro Manuel Rodrigues Almeida. "Development of Sclerotium rolfsii sclerotia on soybean, corn, and wheat straw, under different soil temperatures and moisture contents." Pesquisa Agropecuária Brasileira 45, no. 3 (2010): 332–34. http://dx.doi.org/10.1590/s0100-204x2010000300014.

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The objective of this work was to evaluate the effect of moisture and temperature on the development of Sclerotium rolfsii on soybean, corn, and wheat straw. Wheat straw produced the lowest number of sclerotia. Intermediate soil moisture level (70% of field capacity), and temperatures ranging between 25-30ºC favored sclerotia development. No sclerotia were formed at temperatures between 30-35ºC, on any type of straw.

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Koulali, Yahya, Jean Louis Fonvieille, Abbes Es-Sgaouri, and Robert Dargent. "Influence de la monensine sur la composition lipidique et protéique des culots membranaires chez Botrytis cinerea Pers. et Sclerotium rolfsii Sacc." Canadian Journal of Microbiology 44, no. 10 (1998): 937–44. http://dx.doi.org/10.1139/w98-086.

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Membranes of young hyphae of Botrytis cinerea and Sclerotium rolfsii in the presence or absence of monensin were isolated and their chemical content was determined. Monensin induced a reduction of protein/lipid and sterol/phospholipid ratios. These modifications show that monensin affects vesicular traffic and also both the normal biosynthesis and growth.Key words: monensin, membranes, Botrytis cinerea, Sclerotium rolfsii.

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Harvey, Stephanie G., and Carl E. Sams. "401 Effects of Allyl Isothiocyanate on Mycelial Growth from Germinating Sclerotia of Sclerotium rolfsii." HortScience 35, no. 3 (2000): 462A—462. http://dx.doi.org/10.21273/hortsci.35.3.462a.

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Isothiocyanates are volatile chemicals produced by damaged tissues of Brassica species. Allyl isothiocyanate (AITC), the predominant isothiocyanate in Indian mustard (B. juncea), has been shown to control pest in laboratory and field experiments. We investigated the effectiveness of AITC against the germination of sclerotia of Sclerotium rolfsii Saccardo, a common soilborne pathogen of tomato. Sclerotium rolfsii was cultured on PDA from a field isolate. Mature sclerotia were collected and placed in polyester mesh bags. Culture tubes (16 × 150 mm) were packed with 18 g clay loam soil. A sclerot

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Csinos, A. S. "Control of Southern Stem Rot and Rhizoctonia Limb Rot of Peanut with Flutolanil." Peanut Science 14, no. 2 (1987): 55–58. http://dx.doi.org/10.3146/i0095-3679-14-2-1.

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Abstract Flutolanil (SN 84364) was evaluated in vitro against Sclerotium rolfsii and Rhizoctonia solani AG-4. ED50 values were &lt; 0.01 and &lt; 0.1 μg/mL for S. rolfsii and R. solani, respectively, while Pentachloronitrobenzene (PCNB) had ED50 values of &lt; 0.1 and &lt; 1.0 μg/mL, respectively. Concentrations of flutolanil at 0.1 μg/mL greatly reduced sclerotia and sclerotia initial development of S. rolfsii. Field evaluations were conducted near Tifton, GA, during 1983–86 for control of southern stem rot (S. rolfsii) and Rhizoctonia limb rot (R. solani AG 4) on peanut (Arac

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Rivera, M. C., E. R. Wright, and S. Capucchio. "Gladiolus Corm Rot Caused by Sclerotium rolfsii in Argentina." Plant Disease 85, no. 12 (2001): 1285. http://dx.doi.org/10.1094/pdis.2001.85.12.1285b.

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In 2000, rot was observed on Gladiolus sp. corms produced and stored in a production locale of the Province of Corrientes, Argentina. Symptoms were associated with the development of whitish mycelial strands and light brown 0.8- to 1.5-mm-diameter globose sclerotia typical of Sclerotium rolfsii Sacc. The fungus was isolated on potato dextrose agar. Pathogenicity tests were done by placing plugs of agar media containing mycelium and sclerotia on corms previously wounded with a scalpel. The corms were planted in sterilized soil, incubated at 20 ± 3°C, and watered frequently. Wilt symptoms were o

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Brenneman, T. B., A. S. Csinos, and P. M. Phipps. "Evaluation of Ammonium Bicarbonate for Control of Soilborne Peanut Pathogens." Peanut Science 17, no. 1 (1990): 28–31. http://dx.doi.org/10.3146/i0095-3679-17-1-10.

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Abstract Ammonium bicarbonate was evaluated for efficacy against southern stem rot and Sclerotinia blight of peanut in Georgia and Virginia, respectively. In vitro studies indicated the material provided little inhibition of mycelial growth by Sclerotinia minor and Sclerotium rolfsii, and negligible inhibition of mycelial growth of Rhizoctonia solani AG-4. However, ammonium bicarbonate did effectively inhibit formation of sclerotia by S. rolfsii in vitro. In the field, it was phytotoxic when applied as a granule or as a foliar spray and in general was not effective in controlling disease or in

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McGovern, R. J., H. Bouzar, and B. K. Harbaugh. "Stem Blight of Eustoma grandiflorum Caused by Sclerotium rolfsii." Plant Disease 84, no. 4 (2000): 490. http://dx.doi.org/10.1094/pdis.2000.84.4.490c.

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During a 4-week period in May through June 1996, 15% of 50 mature lisianthus (Eustoma grandiflorum) ‘Maurine Blue’ and ‘Maurine White’ plants exhibited stem blight in a landscape planting in west-central Florida. Initial disease symptoms included stem necrosis at the soil line, and yellowing and tan discoloration of leaves. As blighting of the stem progressed, infected plants wilted and died. Symptomatic stem sections from three plants were surface-disinfested in 0.5% NaOCl and placed on acidified 25% potato dextrose agar (APDA). Sclerotium rolfsii Sacc. was isolated from all three diseased st

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Journal, Admin. "PERAN AGEN HAYATI ASAL RIZOSFER DAN ENDOFIT MENEKAN PENYAKIT BUSUK SKLEROTIUM ROLFSII BAWANG DAUN DI MEDIA GAMBUT (Role of Rhizosphere and Endophytes Biological Agents to Supress Sclerotium rolfsii Rot Disease on Scallions in the Peat Media)." AgriPeat 19, no. 02 (2019): 68–76. http://dx.doi.org/10.36873/agp.v19i02.159.

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ABSTRACTThe Sclerotium Rot Disease is highly destructive to the scallions cultivation in the peat soil. Theantagonistic fungi isolated from the rhizosphere and the endophytes of healthy plants, have beenproven to be able to reduce Sclerotium rolfsii. The aim of this study was to evaluate thecharacteristics of antagonistic fungi from rhizosphere and endophytes of Scallions to S. rolfsii in- vitro in the laboratory. The purpose of this study was also to perform the suppression test on theintensity of Sclerotium rolfsiiRot Disease in planta in the peat media in the screen house. Thisresearch it w

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Kwon, Jin-Hyeuk, Jin-Woo Kim, Yong-Hwan Lee, and Hong-Sik Shim. "Sclerotium Rot of Sponge Gourd Caused by Sclerotium rolfsii." Research in Plant Disease 18, no. 1 (2012): 54–56. http://dx.doi.org/10.5423/rpd.2012.18.1.054.

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