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Mycobiota of rape seeds in Romania. I. Identification of mycobiota associated with rape seeds from different areas of Romania

100%

Sesan T.-E., Groza O.

Acta Mycologica

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2013

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tom 48

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nr 2

The spectrum of fungal diversity associated with rape seeds belonging to 33 cultivars (Alaska, Astrada, Astrid, Atlantic, Betty, Champlein, Chayenne, Dexter, Digger, Elvis, Eurowest, Finesse, Herkules, Hydromel, Hydromel-MA, Ladoga, Manitoba, Masa Rom, Milena, Mohican, Montego, Nectar, Ontario, Orkan, Perla (4 lots), Remy, Robust, Rodeo, Saphir, Tiger, Tiger CBC Lot ROM06-121-110, Triangle, Valesca, Vectra) and 2 hybrids (H-90-20-83, H-90-21-83) has been established by samples’ macroscopical and microscopical analizying, during 2006-2008, for the first time in Romania. The Ulster method on malt-agar and PDA culture media has been used, evaluating the percentage of fungal taxons present on/in rape seeds. The most important pathogenic fungi identified were: Sclerotinia sclerotiorum (Lib.) de Bary, Botrytis cinerea Pers., Rhizoctonia solani Kühn, Alternaria brassicae (Berk.) Sacc., A. brassicicola (Schwein.) Wiltshire and Fusarium spp. Also, a large quantities of some saprophytic fungi, as Alternaria, Cladosporium, Aspergillus, Penicillium, Rhizopus have been recorded. These ones have been affected the health condition of rape seeds, suppressing their germination and other vital phenomena. Among potential antagonistic fungi the followiung genera have been isolated: Chaetomium (0-4%), Trichoderma (0-10%), Aspergillus (0-14%), Penicillium (0-100%). Some correlations and comparisons have been established between fungal diversity, their provenience, cultivars, culture media (Malt-Agar/MA, Potato-Dextrose-Agar/PDA) used. It has been evaluated the behaviour of rape cultivars and hybrids towards the main rape seed pathogens.

2

Effect of osmopriming on location of seed-borne fungi in lettuce [Lactuca sativa] seeds

100%

Szopinska D., Tylkowska K.

Phytopathologia Polonica

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2003

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tom 29

3

Comparison of seed-borne fungal communities of naked and husked oats and barley

100%

Blaszkowski J., Piech M.

Phytopathologia Polonica

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2002

|

tom 24

4

Antifungal activity of 2-hydroxy-4-methoxybenzaldehyde isolated from Decalepis hamiltonii [Wight and Arn.] on seed-borne fungi causing biodeterioration of paddy

84%

Mohana D. C., Satish S., Raveesha K. A.

Journal of Plant Protection Research

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2009

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tom 49

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nr 3

250-256

In vitro antifungal activity assay of different concentrations of 2-hydroxy-4-methoxybenzaldehyde isolated from Decalepis hamiltonii against six important seed-borne fungal pathogens viz., Alternaria alternata, Drechslera tetramera, Fusarium oxysporum, F. proliferatum, Pyricularia oryzae and Trichoconis padwickii isolated from paddy seeds revealed that, the compound 2-hydroxy-4-methoxybenzaldehyde showed significant antifungal activity. Among the fungi tested, F. proliferatum showed highest inhibitory activity, whereas P. oryzae showed least inhibitory activity. The minimal inhibitory concentration (MIC) varied between 350 μg/ml and 650 μg/ml depending on the fungal species. Comparative evaluation of the active compound with the synthetic fungicide thiram at recommended dosage revealed that, the antifungal activity of the active compound obtained from the plant was almost equivalent. Evaluation for nutritional parameters and dry matter losses (DML) revealed that, total carbohydrates, water soluble proteins, lipids and dry matter losses were significantly confined in 2-hydroxy-4-methoxybenzaldehyde treated paddy seeds compared with control seeds. This plant being an edible one can be exploited in the management of seed-borne pathogenic fungi and in the prevention of biodeterioration of grains and mycotoxin production during storage in an eco-friendly way.

5

Effect of fatty acid content on the level of cottonseed colonization by fungi

84%

El-Hady Aly A. A., Hussein E., Omar M., El-Abbasi I., Abd-Elsalam K.

Biological Letters

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2011

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tom 48

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nr 2

6

Non-chemical methods for controlling seedborne fungi in carrot with special reference to Alternaria radicina

84%

Szopinska D., Jensen B., Knudsen I. M. B., Tylkowska K., Dorna H.

Journal of Plant Protection Research

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2010

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tom 50

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nr 2

184-192

The objective of the work was to study the efficacy of carrot seed treatment with antagonistic microorganisms Clonostachys rosea, C. solani, and grapefruit extract (Biosept 33 SL™). Seeds were artificially inoculated with Alternaria radicina spores prior to treatment. The presence of fungi, seed germination and vigour were determined in laboratory tests, whereas seedling emergence and health were determined in sand and soil assays. Clonostachys spp. and grapefruit extract significantly reduced seed infestation with A. radicina and improved seed germination capacity. At a lower concentration of ioculum, treatment with Clonostachys spp. increased percentage of healthy plants in sand assay. At a higher concentration of inoculum, treatment with Biosept 33 SL™ at 0.5% was more effective. Inoculation with pathogen and, in most cases, the following treatments, did not affect total plant emergence in a soil assay. However, pathogen affected significantly a percentage of healthy plants. Treatment with Biosept 33 SL™ at 0.5% as well as with C. rosea increased their numbers significantly at both concentrations of inoculum.

7

Effect of chemical scarification on germination and state of health of carrot (Daucus carota L.) seeds

84%

Bralewski T. W., Holubowicz R., Szopinska D.

Folia Horticulturae

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2004

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tom 16

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nr 1

39-45

8

Fungi and germination of carrot and parsley seeds under osmoconditioning and fungicide treatment

84%

Tylkowska K., Biniek A.

Phytopathologia Polonica

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1996

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tom 12

9

On the geographic variation of Ciboria batschiana (Zopf) Buchwald, the main pathogenic fungus on acorns of Quercus robur and Q.petraea in Europe

84%

Schroder T.

Dendrobiology

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2002

|

tom 47 Supplement

Mycelial growth of the pathogenic fungus Ciboria batschiana (Zopf) Buchwald was examined at nine temperature levels between -3°C and +35°C using pure cultures of the fungus from eleven different provenances located in Germany, Poland, the Czech Republic and Slovenia. The fungus was isolated mainly from cotyledons of acorns of the oak species Quercus robur L. and Quercus petraea (Matt.) Liebl. Even at -3°C the mycelium of the fungus grew well. There were significant differences between the provenances in respect to growth rate and temperature tolerance, especially at low temperatures.

10

Effects of osmopriming and Rovral on health and germination of China aster seeds

84%

Dorna H., Tylkowska K., Zhao X.

Phytopathologia Polonica

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2001

|

tom 21

11

Seed-borne fungi of Ornithopus sativus during a twenty year storage

84%

Narkiewicz-Jodko M.

Acta Mycologica

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1997

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tom 32

|

nr 2

12

Incidence of seed-borne fungi on Lupinus mutabilis depending on a plant morphotype, sowing date and plant density

67%

Pszczolkowska A., Okorski A., Kotecki A., Gas M., Kulik T., Reczek A.

Journal of Elementology

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2016

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tom 21

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nr 2

Seeds of the Andean lupine are characterised by high nutritional value, and the plant could become an important crop in the production of food and forage. This legume continues to attract growing interest around the world. A field experiment was carried out in in Lower Silesia, Poland, in 2011-2012. Two Andean lupine morphotypes (indeterminate and determinate) were analysed. Andean lupine was grown in treatments characterised by different sowing dates and plant density per m2. Seed yield, macronutrient content, protein content and health were evaluated at harvest. Seed yield was determined by the interaction of all experimental factors. The indeterminate form produced a significantly higher yield than the determinate form, regardless of the sowing date. The factors had little influence on the mineral content of seeds and total protein content. Andean lupine seeds were colonised mostly by saprotrophic fungi of the genera Alternaria, Cladosporium, Epicoccum and Rhizopus and pathogenic fungi of the genera Botrytis, Colletotrichum and Fusarium. Delayed sowing contributed to seed colonisation by fungi of the genus Colletotrichum. The determinate form was more susceptible to infection than the indeterminate form. Molecular analysis showed that the Colletotrichum isolates found in the study belong to the Colletotrichum acutatum species complex. The pathogen causing lupine anthracnose, isolated from the seeds of Andean lupine in the present study, was identified as Colletotrichum lupini (within C. acutatum complex) in a molecular analysis, and its DNA sequence was compared with those of the isolates deposited in the GenBank.

13

Soybean seed-borne fungi in the Vojvodina province

67%

Medic-Pap S., Milosevic M., Jasnic S.

Phytopathologia Polonica

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2007

|

tom 45

14

Mycobiota of rape seeds in Romania. II. Evaluation of potential antagonistic fungi isolated from rape seeds against the main pathogens of rape crop

67%

Sesan T.-E.

Acta Mycologica

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2014

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tom 49

|

nr 1

In vitro relationships between identified seed- and soil-borne fungi from rape samples have been investigated in order to evaluate their antagonistic ability as potential biocontrol agents. The bioproduct obtained from the Trichoderma viride Pers. (strain Td50) has been tested in vivo against the main phytopathogens of rape: Sclerotinia sclerotiorum (Lib.) de Bary, Botrytis cinerea Pers., Alternaria spp. and Fusarium spp. in greenhouse at the Laboratory of Mycology and Plant Pathology, Biology Faculty, University of Bucharest – Romania and in the field at the Agricultural Experimental Research-Development Station Caracal (AERDS), Olt district. The T. viride (strain Td50) bioproduct formulated as a powder for the seed treatment has been effective in the protection of rape plantlets against the above mentioned phytopathogens.

15

Rhizoctonia solani and other fungi detected in perennial ryegrass seeds after harvest and storage

67%

Wiewiora B., Pronczuk M.

Phytopathologia Polonica

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2002

|

tom 26

Ograniczanie wyników

Mycobiota of rape seeds in Romania. I. Identification of mycobiota associated with rape seeds from different areas of Romania

Effect of osmopriming on location of seed-borne fungi in lettuce [Lactuca sativa] seeds

Comparison of seed-borne fungal communities of naked and husked oats and barley

Antifungal activity of 2-hydroxy-4-methoxybenzaldehyde isolated from Decalepis hamiltonii [Wight and Arn.] on seed-borne fungi causing biodeterioration of paddy

Effect of fatty acid content on the level of cottonseed colonization by fungi

Non-chemical methods for controlling seedborne fungi in carrot with special reference to Alternaria radicina

Effect of chemical scarification on germination and state of health of carrot (Daucus carota L.) seeds

Fungi and germination of carrot and parsley seeds under osmoconditioning and fungicide treatment

On the geographic variation of Ciboria batschiana (Zopf) Buchwald, the main pathogenic fungus on acorns of Quercus robur and Q.petraea in Europe

Effects of osmopriming and Rovral on health and germination of China aster seeds

Seed-borne fungi of Ornithopus sativus during a twenty year storage

Incidence of seed-borne fungi on Lupinus mutabilis depending on a plant morphotype, sowing date and plant density

Soybean seed-borne fungi in the Vojvodina province

Mycobiota of rape seeds in Romania. II. Evaluation of potential antagonistic fungi isolated from rape seeds against the main pathogens of rape crop

Rhizoctonia solani and other fungi detected in perennial ryegrass seeds after harvest and storage