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Biologia Plantarum

, 9:354 | Cite as

Impatiens parviflora DC. — a natural host of cabbage black ringspot and cucumber mosaic viruses

  • Z. Polák
Article

Abstract

Identification trials were carried out to determine a virus-like disease ofImpatiene parviflora DC. Two forms of foliar symptoms were observed:
  1. a)

    Chiorotie and necrotic areas sometimes fallen out, leaving the leaves “shot holed”;

     
  2. b)

    milder foliar symptoms consisting of slight greenish yellow areas and spots often scarcely visible except by transmitted light.

     

Results of experiments with the first form of the disease demonstrate the identity of the causal virus with cabbage black ringspot virus; the second type of symptoms was caused by a Strain of cucumber mosaic virus inducing unusual symptoms in tobacco plants.

Keywords

Cucumber Mosaic Virus Plant Virus Foliar Symptom Immunodiffusion Test Local Necrotic Lesion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Impatiens parviflora DC. — přírodní hostitel viru ùernù kroužkovitosti zelí a viru mozaiky okurky.

Impatiens parviflora DC. — растение -хоЗЯин Вирусов черноЙ коЛьцевоЙ пЯтнистости капусты и моЗаики огурца в прироДе.

Abstract

VyŠetřovali jsme pŮvodce ochuravùníImpatiens parviflora DC., kterù bylo v poslední dobù rozŠířeno na nùkolika ruderálních lokalitách na území Velkù Prahy. Ochuravùní se vyskytuje ve dvou formách: a) na listech netÝkavky se objevují chlorotickù a nekrotickù ploŠky, pozdùji vypadávající, kterù způsobují prodùravùní a silnou deformaci listů; b) mírnùjŠí ochuravùní projevující se na listech lehkou žlutozelenou skvrnitostí často lùpe viditelnou v procházejícím svùtle.

VÝsledky identifikačních pokusů jednoznačnù prokázaly, že první forma ochuravùní je způsobena virem černù kroužkovitosti zelí, druhá pak kmenem viru mozaiky okurky, kterÝ vyvolává neobvyklù primární příznaky na tabáku.

Abstract

В некоторых рудераЛЬных ассоциациЯх В обЛасти БоЛЬшоЙ Праги быЛо при вирусоЛогическом осмотре установЛено ЗабоЛеваниеImpatiens parvillora DC., в двух формах: a) на ЛистЬЯх поЯвЛЯЮтсЯ хЛоротические и некротические пЯтна, отдеЛЬные участки некротическоЙ ткани ВыпадаЮт иЗ пЛастинки Листа, и ЛистЬЯ деформируЮтсЯ, б) мЯткаЯ жеЛто-ЗеЛенаЯ пЯтнистостЬ, обыкновенно Лучше ВидимаЯ в проходЯщем свете.

Опытами быЛо установЛено, что причиноЙ первоЙ формы ЗабоЛеваниЯ ЯвЛЯетсЯ вирус черноЙ коЛЬцевоЙ пЯтнистости капусты; втораЯ форма ВыЗываетсЯ инфекциеЙ Вирусом моЗаики отурца.

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Copyright information

© Institute of Experimental Botany 1967

Authors and Affiliations

  • Z. Polák
    • 1
  1. 1.Department of Plant Pathology, Institute of Experimental BotanyCzechoslovak Academy of SciencesPraha 6

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