Wyniki wyszukiwania - AGRO

1

RNAi as a specific antiviral immune system in plants

100%

Wojciechowicz J., Gorecki R. J., Legocki A. B., Figlerowicz M.

Polish Journal of Natural Sciences. Supplement

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2003

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tom 01

2

Metabolic reactions in the leaves of Crassula multicava Lam. infected by Pestalotia sp.

88%

Saniewski M., Saniewska A., Urbanek H.

Acta Physiologiae Plantarum

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2007

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tom 29

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nr 1 Suppl.

3

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Susceptibility of microirrigated German asparagus cultivars to infection by pathogens

75%

Panka D., Rolbiecki R., Musial N., Jeske M.

Infrastruktura i Ekologia Terenów Wiejskich

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2015

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nr III/2

4

Components of quantitative resistance in barley plants to Fusarium head blight infection determined using three in vitro assays

75%

Sakr N.

Journal of Plant Protection Research

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2018

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tom 58

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nr 2

Quantitative resistance in barley to four Fusarium head blight (FHB) species was investigated in vitro. Nine components involved in three assays (detached leaf, modified Petridish and seedling tests) were compared on two widely grown Syrian barley cultivars: Arabi Aswad (AS) and Arabi Abiad (AB). On AB, inoculation with FHB species resulted in a significantly shorter latent period and larger lesion length of detached leaf inoculation, more standardized area under disease progress curve (AUDPCstandard) of modified Petridish inoculation and a higher percentage of infected seedlings of pin-point inoculation than on AS. The latent period of AB was 14.89% less than AS, lesion length of AS was 6.01% less than AB, AUDPCstandard of AS was 17.07% less than AB and the percentage of infected seedlings of AS was 4.87% less than AB. Inoculation with FHB species resulted in no significant differences in the other five components measured: incubation period of detached leaf inoculation, germination rate reduction and coleoptile length reduction of modified Petridish inoculation, percentage of infected seedlings of foliar-spraying inoculation and lesion length of clip-dipping inoculation. AS was more resistant to in vitro FHB infection than AB. The latent period and AUDPCstandard recorded the highest values compared with the lowest values for lesion length and percentage of infected seedlings. It seems that measurement of the latent period and AUDPCstandard may be useful in identifying barley cultivars which are highly susceptible or resistant to FHB at early stages.

5

cDNA-AFLP - based identification of tomato genes induced upon potato cyst nematode infection

75%

Swiecicka M., Dabrowska J., Filipecki M., Goverse A., Helder J.

Polish Journal of Natural Sciences. Supplement

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2003

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tom 01

6

Investigations of plant infections by thermal vision and NIR imaging

75%

Hellebrand H. J., Herppich W. B., Beuche H., Dammer K. H., Linke M., Flath K.

International Agrophysics

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2006

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tom 20

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nr 1

7

Ultrastructural changes in leaf cells infected with Arabis mosaic nepovirus. II. In Chenopodium quinoa plants

75%

Zielinska L., Pospieszny H.

Journal of Plant Protection Research

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2002

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tom 42

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nr 2

8

Elements of signal transduction leading to activation of plant defense

75%

Hennig J.

Biotechnologia

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1996

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nr 1

9

Partial characterisation of cucumber mosaic virus isolate infecting Lonicera caprifolium L. plants

75%

Kaminska M., Sliwa H., Malinowski T.

Acta Scientiarum Polonorum. Hortorum Cultus

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2005

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tom 04

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nr 2

Plants of honeysuckle (Lonicera caprifolium L.) from commercial nursery, showing stunted growth and severe leaf and flower malformation were found to be naturally infected with Cucumber mosaic virus (CMV). The virus was identified on the basis of its host range and in vitro and serological properties. It was mechanically transmitted onto therteen herbaceous test plants and induced local or local and systemic symptoms. The isolated virus had a TIP of 65–70°C, a LIV of 4–5 h and DEP of 10⁻⁴–10⁻⁵. It reacted positively in DAS-ELISA with CMV-ToRS (II) commercial antibodies but not with antibodies against CMV-DTL (I). Rabbit antiserum was produced, and it showed the titre at least 128 000 in F(ab’)₂ -ELISA with homologous isolate, as well as with isolate CMV-M belonging to serogroup DTL.

10

Influence of temperature and daylight length on barley infection by Pyrenophora teres

63%

Kosiada T.

Journal of Plant Protection Research

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2008

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tom 48

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nr 1

9-16

Net blotch caused by Pyrenophora teres is the most important disease of barley in many regions in which this cereal is cultivated. In the performed work the influence of solarization period and temperature on infection of barley by P. teres was estimated. Three isolates of each P. teres f. teres and P. teres f. maculata were used. The response of six barley genotypes to the pathogen was estimated. Barley infection was differentiated and depended on solarization period, and the isolate of P. teres. Number of infected plants increased with the increase of temperature. Interaction occurred among length of solarization period and temperature. The highest barley infection by P. teres f. teres was observed at 10 hours of solarization and temperature 25°C.

11

Chlorophyll fluorescence and gas exchange measurements as a tool for evaluation susceptibility of strawberry plants to biotic stress

63%

Sowik I., Borkowska B., Michalczuk L., Klamkowski K.

Acta Physiologiae Plantarum

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2007

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tom 29

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nr 1 Suppl.

12

Localization of reactive oxygen species during symbiosis of early clover and Rhizobium leguminosarum bv. trifolii

63%

Kopcinska J.

Acta Biologica Cracoviensia. Series Botanica

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2009

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tom 51

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nr 2

93-98

In this work, clover was shown to respond to infection with Rhizobium leguminosarum bv. trifolii by producing reactive oxygen species. Superoxide radical and hydrogen peroxide were detected in infection threads and nodule primordia. The role of reactive oxygen species in clover-Rhizobium leguminosarum bv. trifolii symbiosis is discussed

13

Possible factors of increased resistance of triticale (xTriticosecale Wittm.) to pink snow mould (Microdochium nivale) infection

63%

Golebiowska B., Wedzony M.

Acta Physiologiae Plantarum

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2007

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tom 29

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nr 1 Suppl.

14

The occurrence of Fusarium spp. on oat (Avena sativa L.) and susceptibility of seedlings of selected genotypes to infection with Fusarium graminearum Schwabe

63%

Kiecana I., Mielniczuk E., Cegielko M., Pastucha A.

Acta Agrobotanica

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2014

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tom 67

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nr 2

The present study was carried out in the years 2010–2012 in the fields of the Strzelce Plant Breeding Company Ltd., belonging to the Plant Breeding and Acclimatization Institute in Radzików, and it included 39 oat genotypes. At the six-week seedling stage, the percentage of plants with root and leaf sheath necrosis symptoms was evaluated. In 2010 the percentage of seedlings with disease symptoms ranged from 6.5% to 25%, in 2011 it ranged from 17% to 34.5%, whereas in 2012 from 10% to 25%. In 2010 the disease index ranged from 1.4 to 5.7, in 2011 from 4.5 to 8.8, while in 2012 it was between 2.0 and 5.4. Mycological analysis showed that large numbers of Fusarium spp. colonies were obtained both from the roots and leaf sheaths. Isolates of these fungi accounted for 63.48% of the total fungi isolated from seedlings. Seedlings grown under the conditions of central Poland were damaged by the species F. culmorum, F. avenaceum, and F. solani. The investigation of the susceptibility of 15 oat genotypes to infection with two Fusarium graminearum strains – Tz 56 and Tk 235 – was carried out under growth chamber conditions at a temperature of 22–23oC and relative air humidity of 85%. The F. graminearum strain Tz 56 proved to be the most pathogenic to seedlings of the breeding lines STH 0.9403 and POB 1316/08, for which the disease index was 80.5 and 75.5, respectively. The lowest pathogenicity of the a.m. strain was recorded in the case of the genotype DC 1832/05, for which the disease index was 26.5. The F. graminearum strain Tk 235 proved to be the most pathogenic to the genotypes STH 0.9403 and STH 0.9423, for which the disease index was 70.5 and 70.0, respectively, whereas this strain was least pathogenic to the breeding line DC 2112/05, in the case of which the disease index was 25.5.

15

Prevalence of infections with onion yellow dwarf virus, leek yellow stripe virus and garlic common latent virus in plants from the genus Allium

63%

Winiarczyk K., Solarska E., Sienkiewicz W.

Acta Scientiarum Polonorum. Hortorum Cultus

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2014

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tom 13

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nr 3

The aim of the present work was to identify GCL, OYD and LYS and to assess the degree of their distribution in crop and ornamental plants from the genus Allium. Two groups of plants from the genus Allium were used. The first group included 10 botanical species, while the second group was composed of seven commercial A. sativum cultivars and two genotypes. Identification of GCL, OYD and LYS in leaves, inflorescences, and bulbs was performed with the use of the ELISA test. All plants in the first group consisting of botanical species of the genus Allium were free from the viruses studied, whereas in commercial A. sativum cultivars a high prevalence of GCLV, OYDV and LYSV infection reaching 88.2%, 75% and 32.1%, respectively, was reported. Varying severity of infection in the particular plant organs was found.

16

Cytopathological changes in nucleus of Lycopersicon esculentum cult. Rutgers plants infected with potato spindle tuber viroid [PSTVd]

63%

Rudzinska-Langwald A.

Annals of Warsaw Agricultural University. Agriculture

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1999

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nr 35

3-12

17

Accumulation of iron-binding compounds in root of Pinus sylvestris challenged by Heterobasidion annosum sensu lato

63%

Mucha J., Guzicka M., Lakomy P., Zadworny M.

Dendrobiology

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2015

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tom 73

We examined the interaction between the roots of Pinus sylvestris and closely related species Heterobasidion annousum s.l. (H. annosum s.s., H. parviporum, H. abietinum) that differ in host plant preference. The aim of the current study was to determine in roots the accumulation pattern of low molecular mass compounds such as catecholate and hydroxamate derivates, oxalic acid as well as iron-reduction ability of that low molecular mass compounds, that play important roles in wood degradation and they are also involved in pathogenesis. The accumulation of catechol and hydroxamate derivates increased during the early (2–6 h) and late (24–48 h) stages of interaction and similar pattern of oxalic acid accumulation were observed. The level of catecholate derivates in P. sylvestris roots that were challenged with H. parviporum or H. abietinum correlated strongly with iron reducing ability. However, when host was exposed to H. annosum s. s. hydroxamates rather than catecholates regulated iron reducing ability. The extracellular Fe3+ reducing activity was greater for H. annosum s. s. isolates than for isolates of two other species, and reduction of ferric iron may promote oxidative burst in host cell and fungal colonization. Catecholate concentration in the presence of H. annosum s.s. contributing to host cell death, confirm iron involvement in infection success.

18

Ultrastructural studies Nicotiana clevelandii plants doubly infected with potato leafroll virus and potato virus Y

63%

Garbaczewska G., Kerlan C.

Annals of Warsaw Agricultural University. Agriculture

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2001

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nr 39

17-26

19

The influence of spring barley grain (Hordeum vulgare L.) infection by Bipolaris sorokiniana (Sacc.) Shoem. on the leaf infection and grain contamination by sterigmatocystin

63%

Cegielko M., Kiecana I., Mielniczuk E., Waskiewicz A., Bocianowski J.

Acta Scientiarum Polonorum. Hortorum Cultus

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2018

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tom 17

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nr 2

Bipolaris sorokiniana is a dangerous pathogen of plants from Poaceae family. A secondary metabolite with carcinogenic properties produced by this fungus is sterigmatocystin. A field experiment with inoculation of the grain of 9 spring barley genotypes with B. sorokiniana No. 36 was carried out in the years 2012–2014 in the Zamość region. Field observations revealed leaf spot caused by B. sorokiniana in all studied genotypes. In 2012, values of the leaf infection index varied from 21.88 (Oberek) to 48.12 (Hajduczek), in 2013 from 25.31 (Skald, Oberek) to 50.00 (STH 7910) and in 2014 from 21.88 (Oberek) to 50.00 (Hajduczek). In the experimental combination with B. sorokiniana, colonies of this fungus in the years 2012–2014 accounted for: 81.22%, 93.11% and 71.78%, respectively, and in control combination: 40.06%, 32.26% and 33.72%, respectively. The chemical analysis of grain of 9 barley genotypes obtained from plants in an experimental combination with B. sorokiniana in 2014, revealed the presence of sterigmatocystin in the genotypes: Hajduczek, Kormoran, Stratus and STH 7910. The sterigmatocystin concentration ranged from 5.39 ng·g–1 (STH 7910) to 67.05 ng·g–1 (Hajduczek). A statistically significant correlation was found between the value of the leaf infection index and the concentration of sterigmatocystin in the grain.

20

Integrated plant and pathogen‘omics approaches to understanding fungal diseases of wheat

63%

Rudd J. J., Lee W.-S., Hammond-Kosack K., Kanyuka K.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2013

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tom 94

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nr 3

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