نتایج جستجو برای: rhytisma acerinum

تعداد نتایج: 20  

ژورنال: :پژوهشنامه بوم شناسی جنگل های ایران 0
شهرام مهدی کرمی محمدرضا کاوسی اکرم کرمی

لکه قیری از جمله بیماری ‎ های قارچی است که درختان افرا را مبتلا نموده است. این بیماری باعث خزان زود ‎ رس، از بین رفتن برگ، سبب کاهش رشد، کاهش تولید چوب و بذر درختان افرا می ‎ گردد. به همین منظور جداسازی و شناسایی عامل بیماری روی برگ درختان افراپلت در جنگل آموزشی و پژوهشی دکتر بهرام ‎ نیا (شصت ‎ کلاته گرگان) انجام گرفت. پس از تهیه نمونه و کشت آن روی محیط pda ، پرگنه قارچ عامل بیماری که سفید رنگ ...

Journal: :Ecocycles 2021

In the work presented in silico DNA sequence and dendrogram analyses were carried out to reveal molecular diversity genetic distances among Rhytisma entries related species based on gene bank data mining. The study revealed that R. acerinum shows closest distance polare. nucleotide variation detected raised a need for consensus between Linnean morphological new systematics.

2013
Michael Sweet Deborah Burn Aldo Croquer Peter Leary

The number and prevalence of coral diseases/syndromes are increasing worldwide. Dark Spot Syndrome (DSS) afflicts numerous coral species and is widespread throughout the Caribbean, yet there are no known causal agents. In this study we aimed to characterise the microbial communities (bacteria and fungi) associated with DSS lesions affecting the coral Stephanocoenia intersepta using nonculture m...

Journal: :Trees-structure and Function 2022

Abstract Key message Comprehensive management of urban greenery is a key approach to control fungal diseases trees and shrubs avoid the deterioration in their health status. Preliminary investigations on status related growing four green squares Warsaw were conducted 2017–2019. The examined plants affected by that are commonly identified greenery, e.g., powdery mildew (causal agents: Sawadaea t...

مهدی کرمی, شهرام, کاوسی, محمدرضا, کرمی, اکرم,

 Maple tap spot is one of the fungal diseases which has been infected maple trees. Early deciduous, the disappearance of leaf, reduction of growth, seed and wood production of maple trees are resulted due to this disease. The objective of this research was isolation and identification of the pathogen on leaves of Acer velutinum in Dr. Bahramnia educational and research forest (Shast-Kalateh of ...

Journal: :The Analyst 2016
James Ord Holly J Butler Martin R McAinsh Francis L Martin

Terrestrial plants are ideal sentinels of environmental pollution, due to their sedentary nature, abundance and sensitivity to atmospheric changes. However, reliable and sensitive biomarkers of exposure have hitherto been difficult to characterise. Biospectroscopy offers a novel approach to the derivation of biomarkers in the form of discrete molecular alterations detectable within a biochemica...

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