Beta
260092

THE ROLE OF HYPHAL CONTENTS OF AMINO ACIDS IN VIRULENCE OF Rhizoctonia solani (THE INCITANT OF BEAN ROOT ROT).

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

-

Abstract

The quantitative and qualitative contents of free and total amino acids were estimated in hyphae of six isolates of Rhizoctonia solani. Such isolates were varied in their virulence on bean (Phasiolus vulgaris) Giza-3 cultivar.  It has been found that the mycelium of the high virulent isolates (4,5,6) contained higher amounts of total amino acids than that of the less virulent isolates (1,2,3).  The mean content of lucine was the highest 1760.76 mg/100g fresh weight of the total amino acids of all fungal isolates.  However, the least means of total amino acids were found with proline 107.352 mg/100g f.w and cystine 16.710.  The rest of total amino acids were varied between the fungal isolates in which the high virulent isolates (4,5,6) contained high amount of Glutamic (1086.164, 1245.230 and 2202.330 mg/100g f.w respectively), Glycine (1346.484, 1431.663 and 2530.702 mg/100g f.w respectively) and lucine (2009.396, 2194.982 and 3465.961 mg/100g f.w respectively).  On the other hand Histidine was found also in high concentration (755.084 mg/100g f.w) in hyphae of the high virulent isolate No.6 which could be related to virulenc.                 In case of free amino acid, the highest contents means were found with thrionine (105.442 mg/100g f.w) and glutamic (144.803 mg/100g f.w).  Both high virulent isolates 5 and 6 contained the high amounts of Aspartic (64.810 and 136.821 mg/100g f.w respectively) and Glutamic (218.626 and 294.383 mg/100g f.w respectively) . The least amounts of free amino acids in hyphae of all isolates were proline, Cystine, Lucine and Phenylalanine.  The distribution of free amino acids concentrations was varied between the different isolats and does not follow specific trend. Such data indicate that virulence of  certain fungal isolates could be related to the amount of some total amino acids rather than free amino acids.

DOI

10.21608/jpp.2000.260092

Keywords

Root-rot, Damping-off, common bean, amino acid, Phaseolus vulgaris, Rhizoctonia solani

Authors

First Name

Aziza

Last Name

Darweish,

MiddleName

K.

Affiliation

Plant Pathology Department, Alexandria University. Egypt.

Email

-

City

-

Orcid

-

Volume

25

Article Issue

11

Related Issue

36740

Issue Date

2000-11-01

Receive Date

2000-10-17

Publish Date

2000-11-01

Page Start

6,853

Page End

6,861

Print ISSN

2090-3669

Online ISSN

2090-374X

Link

https://jpp.journals.ekb.eg/article_260092.html

Detail API

https://jpp.journals.ekb.eg/service?article_code=260092

Order

19

Type

Original Article

Type Code

887

Publication Type

Journal

Publication Title

Journal of Plant Production

Publication Link

https://jpp.journals.ekb.eg/

MainTitle

THE ROLE OF HYPHAL CONTENTS OF AMINO ACIDS IN VIRULENCE OF Rhizoctonia solani (THE INCITANT OF BEAN ROOT ROT).

Details

Type

Article

Created At

22 Jan 2023