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首页> 外文期刊>Aerobiologia >Aerobiological dynamics of potentially pathogenic fungi in a rice agroecosystem in La Habana, Cuba
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Aerobiological dynamics of potentially pathogenic fungi in a rice agroecosystem in La Habana, Cuba

机译：古巴拉哈瓦那水稻农业生态系统中潜在致病真菌的空气生物学动态

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摘要

The aerobiology can play a key role in protecting the rice crop since many fungi can cause serious damage to agricultural areas. In this way, the ideal time to implement different security measures can be identified. To determine the presence of potentially pathogenic fungi in the air of the rice agroecosystem, a weekly monitoring of viable fungi was carried out using a volumetric sampler. Collected fungi were quantified, isolated, and identified based on their morphological characteristics. The results obtained demonstrated that the annual average concentration of filamentous fungi in the atmosphere of rice agroecosystem studied was 1,225 cfu m~(-3) levels ranging between 115 cfu m~(-3) (April) and 2,865 cfu m~(-3) (August). Pyricularia grisea was detected in the air for 5 months, since the second week of June until the first week of October, and highest average concentration (25 cfu m~(-3)) was observed in August. Of the meteorological factors evaluated, temperature and relative air humidity influence the concentration of propagules of P. grisea in the air. Besides, other fungi were detected such as Curvularia, Bipolaris, Alternaria, and Cercospora, all with relevance to rice cultivation. This is the first characterization of aeromycological biodiversity in the studied region.
机译：由于许多真菌都可能对农业地区造成严重破坏，因此航空生物学在保护稻米作物中起着关键作用。这样，可以确定实施不同安全措施的理想时间。为了确定水稻农业生态系统空气中是否存在潜在病原性真菌，使用容积采样器每周对存活真菌进行监测。根据收集的真菌的形态特征对其进行定量，分离和鉴定。所得结果表明，研究的水稻农业生态系统大气中丝状真菌的年平均浓度为1,225 cfu m〜（-3），范围在115 cfu m〜（-3）（4月）至2,865 cfu m〜（-3）之间。 ） （八月）。从6月的第二周到10月的第一周，在空气中检出了5个月的稻瘟病菌，8月观测到最高平均浓度（25 cfu m〜（-3））。在评估的气象因素中，温度和相对空气湿度会影响空气中稻瘟病菌繁殖体的浓度。此外，还检测到其他真菌，如弯孢菌，双极菌，链格孢菌和Cercospora，它们均与水稻栽培有关。这是所研究地区的航空生物学多样性的第一个特征。

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  • 来源
    《Aerobiologia》 |2012年第2期|p.177-183|共7页
  • 作者

    Michel Almaguer-Chavez; Teresa Rojas-Flores; Vladimir Dobal-Amador; Amado Batista-Mainegra; Narovis Rives-Rodriguez; Maria Jesus-Aira; Ana N. Hernandez-Lauzardo; Annia Hernandez-Rodriguez;

  • 作者单位

    Departamento de Microbiologia y Virologia, Facultad de Biologia, Universidad de La Habana, Calle 25, No 455,entre I y J, Vedado, Ciudad de La Habana, Cuba;

    Departamento de Microbiologia y Virologia, Facultad de Biologia, Universidad de La Habana, Calle 25, No 455,entre I y J, Vedado, Ciudad de La Habana, Cuba;

    Departamento de Microbiologia y Virologia, Facultad de Biologia, Universidad de La Habana, Calle 25, No 455,entre I y J, Vedado, Ciudad de La Habana, Cuba;

    Departamento de Microbiologia y Virologia, Facultad de Biologia, Universidad de La Habana, Calle 25, No 455,entre I y J, Vedado, Ciudad de La Habana, Cuba;

    Departamento de Protection de Plantas, Instituto de Investigaciones del Arroz, Carretera de Novia del Mediodia, km 16 1/2, La Habana, Bauta, Cuba;

    Departamento de Botanica, Facultad de Farmacia,Universidad de Santiago de Compostela, Campus Sur,15782 Santiago de Compostela, Spain;

    Departamento de Interacciones Planta-Insecto, Centro de Desarrollo de Productos Bioticos, Instituto Politecnico Nacional, Carretera Yautepec-Jojutla, Km. 6, Calle CEPROBI No. 8, Col, San Isidro, Apartado Postal 24,C.P. 62731 Yautepec, Morelos, Mexico;

    Departamento de Microbiologia y Virologia, Facultad de Biologia, Universidad de La Habana, Calle 25, No 455,entre I y J, Vedado, Ciudad de La Habana, Cuba;

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  • 正文语种 eng
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  • 关键词

    pyricularia grisea; airborne fungi; biodiversity; meteorological factors; fungal propagules;

    机译：稻瘟病空中真菌生物多样性;气象因素;真菌繁殖体;

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