scholarly journals Test usposobljenosti Laboratorija za varstvo gozdov za detekcijo glive Gibberella circinata - poročilo

2014 ◽  
Author(s):  
Barbara Piškur
Keyword(s):  
2010 ◽  
Vol 41 (3) ◽  
pp. 227-232 ◽  
Author(s):  
T. R. Gordon ◽  
S. C. Kirkpatrick ◽  
B. J. Aegerter ◽  
A. J. Fisher ◽  
A. J. Storer ◽  
...  

2006 ◽  
Vol 110 (8) ◽  
pp. 936-940 ◽  
Author(s):  
Thomas R. Gordon ◽  
Sharon C. Kirkpatrick ◽  
Jeness C. Petersen ◽  
Christopher J. Friel

2017 ◽  
Vol 30 (01) ◽  
pp. 19-42
Author(s):  
J. A. Flores-Pacheco

La enfermedad denominada con el nombre de Chancro Resinoso del Pino es causada por el hongo ascomicete Fusarium circinatum Nirenberg et O’Donnell (teleomorfo= Gibberella circinata). Afecta numerosas especies de coníferas y a la fecha tiene presencia en todos los continentes del mundo, a excepción de la Antártida. Debido a las variaciones climatológicas y ambientales a nivel global que han favorecido el rango biológico de dispersión de la enfermedad, sumado al comercio internacional de madera y sus derivados con medidas cuarentenarias insuficientes, actualmente el hongo amenaza con expandirse a zonas libres de la infección. En las zonas donde ya se ha confirmado la presencia de la enfermedad se reportan importantes pérdidas económicas en viveros, semilleros forestales, plantaciones silvestres y comerciales de distintas especies de coníferas. No menos importante pérdida ecosistémica causada por la inestabilidad de los bosques y nichos ecológicos altamente sensibles a las variaciones florísticas. Actualmente es considerada la patología más importante a nivel mundial de las coníferas, tanto silvestres como comerciales, y no posee tratamiento curativo por lo que los esfuerzos están centrados en el tratamiento preventivo. Dentro del ámbito científico destacan las investigaciones en resistencia genética del hospedante y el uso de controladores biológicos que prometan resultados significativos.


2005 ◽  
Vol 54 (1) ◽  
pp. 46-52 ◽  
Author(s):  
H. Britz ◽  
T. A. Coutinho ◽  
B. D. Wingfield ◽  
W. F. O. Marasas ◽  
M. J. Wingfield

Plant Disease ◽  
2008 ◽  
Vol 92 (4) ◽  
pp. 542-545 ◽  
Author(s):  
A. R. Inman ◽  
S. C. Kirkpatrick ◽  
T. R. Gordon ◽  
D. V. Shaw

Pitch canker, caused by Gibberella circinata (anamorph = Fusarium circinatum), causes canopy dieback and mortality in susceptible pine species in many parts of the world. Pitch canker is most problematic in areas with a relatively warm climate, suggesting a possible limitation on disease development imposed by low temperatures. To test this hypothesis, the effect of temperature on radial growth was examined in isolates of G. circinata of diverse geographic origin. All isolates grew most rapidly at 25°C and progressively more slowly at 20, 15, and 10°C. Spore germination occurred most rapidly at 20°C and was slowest at 10°C. To determine if the time required for spore germination might influence the likelihood of infection, the duration of wound susceptibility was examined by inoculating branches of susceptible Monterey pines (Pinus radiata). In each of six field trials, branches were wounded and then inoculated immediately or at 2, 6, or 9 days after wounding. The results indicated that wounds inoculated immediately became infected at a significantly higher rate than those inoculated 2 days later. Thus, if low temperatures extend the time required for germination beyond this period, a reduced infection frequency would be expected. Such a limiting effect of temperature could help to explain the current distribution of pitch canker.


1999 ◽  
Vol 28 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Sarah F Covert ◽  
Angela Briley ◽  
M.Margaret Wallace ◽  
Victor T McKinney

Author(s):  

Abstract A new distribution map is provided for Gibberella circinata Nirenberg & O'Donell ex Britz, T.A. Cout., M.J. Wingf. & Marasas. Ascomycota: Hypocreales. Hosts: Pinus spp. and Douglas fir (Pseudotsuga menziesii). Information is given on the geographical distribution in Europe (France, Italy, Portugal, and Spain), Asia (Kyushu, Ryukyu Archipelago, Japan, and Korea Republic), Africa (South Africa), North America (Mexico, Alabama, Arkansas, California, Florida, Georgia, Louisiana, Mississippi, North Carolina, Tennessee, Texas, Virginia, USA), Central America & Caribbean (Haiti), South America (Chile and Uruguay).


2006 ◽  
Vol 55 (2) ◽  
pp. 231-237 ◽  
Author(s):  
T. R. Gordon ◽  
S. C. Kirkpatrick ◽  
B. J. Aegerter ◽  
D. L. Wood ◽  
A. J. Storer

2007 ◽  
Vol 111 (7) ◽  
pp. 827-831 ◽  
Author(s):  
Christopher J. Friel ◽  
Anne E. Desjardins ◽  
Sharon C. Kirkpatrick ◽  
Thomas R. Gordon

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