دراسة فطريات البياض الدقيقي (Erysiphaceae ) على بعض نباتات الفصيلة القرعية (Cucurbitaceae)

Authors

  • نوال علي

Abstract

أظهرت دراسة الأنواع الاقتصادية الهامة التابعة للفصيلة القرعية  إصابة /8/ أنواع  بفطريات البياض الدقيقي, خمسة أنواع منها مصابة بالفطر Erysiphe cichoracearum فقط, وثلاثة أنواع (الخيار, الكوسا, القرع) كانت مصابة بالنوعين الفطريين معاً: Erysiphe cichoracearum وSphaerotheca fuliginea كما أظهرت الدراسة تواجد الفطريات السابقة بطورها الكونيدي فقط على جميع عوائلها المدروسة طوال العام, بينما غاب الطور الجنسي حيث لم تتشكل الثمار الزقيّة نهائياً .

كما بينت النتائج أن نسبة إنتاش الأبواغ الكونيدية للنوع Sphaerotheca fuliginea كانت
أعلى مما كانت عليه لدى النوع Erysiphe cichoracearum ونتج عن ذلك سيادة الفطر Sphaerotheca fuliginea على الفطر Erysiphe cichoracearum

The survey study has shown that /8/ host plants were found to be infected with powdery mildew, five of then were infected by Erysiphe cichoracearum only.

Three Cucurbita maxima - Cucurbita pepo L., Cucumis sativus L. were infected by two fungi species at the same time (Sphaerotheca fuliginea and Erysiphe cichoracearum). It seems that the presence of fungi species on their respective host plant was only in the conidial stage around the year (without any formation of Cleistothecium).

The results showed an increased conidial germination by Sphaerotheca fuliginea comparing to Erysiphe cichoracearum. Consequently the species Sphaerotheca was dominant on the leaf surface of host plant comparing to the other fungi species Erysiphe cichoracearum

 

Downloads

Published

2018-12-17

How to Cite

علي ن. (2018). دراسة فطريات البياض الدقيقي (Erysiphaceae ) على بعض نباتات الفصيلة القرعية (Cucurbitaceae). Tishreen University Journal -Biological Sciences Series, 27(1). Retrieved from https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/5638

Issue

Vol. 27 No. 1 (2005): العلوم البيولوجية

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series   

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series  .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series    Publisher

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Most read articles by the same author(s)

1 2 > >>