Role of some rhizobacteria in controlling agrobacterium tumefaciens the causal agent of crown gall disease / (Record no. 175432)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05534nam a22004457a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GICUC |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20251103113005.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 251103s2025 ua a|||frm||| 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloguing agency | EG-GICUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GICUC |
| Modifying agency | EG-GICUC |
| Description conventions | rda |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | eng |
| -- | ara |
| 049 ## - Acquisition Source | |
| Acquisition Source | Deposit |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 632 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 632 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.07.16.Ph.D.2025.Im.R |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Iman Amer Abdelhafiz Amer, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | Role of some rhizobacteria in controlling agrobacterium tumefaciens the causal agent of crown gall disease / |
| Statement of responsibility, etc. | by Iman Amer Abdelhafiz Amer ; Supervisors Dr. Maurice Sabry Mikhail, Dr. Maryan Makram Yousef, Dr. Ashraf Fathy Abd El-Rahman. |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | دور بعض الريزوبكتيريا في مكافحة tumefaciens Agrobacterium ال مسبب لمرض التدرن التاجي |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Date of production, publication, distribution, manufacture, or copyright notice | 2025. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 138 + 65 pages : |
| Other physical details | illustrations ; |
| Dimensions | 25 cm. + |
| Accompanying material | CD. |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Source | rda content |
| 337 ## - MEDIA TYPE | |
| Media type term | Unmediated |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | volume |
| Source | rdacarrier |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D)-Cairo University, 2025. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography: pages 107-139. |
| 520 #3 - SUMMARY, ETC. | |
| Summary, etc. | Crown gall caused by Agrobacterium tumefaciens (synonym Rhizobium radiobacter) is one of the most dangerous bacterial diseases affecting the production of fruit tree nurseries in Egypt and many countries of the world. A study of 55 bacterial isolates from the rhizosphere of stone fruit plants showed that ten isolates of 1-aminocyclopropane-1- carboxylic acid (ACC) deaminase-producing rhizobacteria were identified as Pseudomonas strains. Co-inoculating castor bean (Ricinus communis L.) and kalanchoe (Kalanchoe sp.) plants with A. tumefaciens and ACC-producing isolates of Pseudomonas vancouverensis reduced tumor formation in both plants. Also, the secondary metabolites of six of the 55 isolates inhibited the growth of A. tumefaciens, as indicated by the inhibition zone test. The results showed that those six isolates reduced the diameter and weight of tumors produced on kalanchoe and tomato (Solanum lycopersicum L.) plants. The six isolates were identified as Klebsiella, Pantoea (four isolates), and Enterobacter. GC-MS analysis of ethyl acetate (EtOAc) extracts of the metabolites of four selected isolates of the six isolates found that 4H-pyran-4-one, 2,3-dihydro-3,5-dihydroxy-6-methyl- is the major component in the metabolites of Klebsiella and Enterobacter and bis (2-ethylhexyl) phthalate in Pantoea metabolites. Meanwhile, LC-ESI-TOF-MS analysis found that hydroquinone and 4-methylcatechol are two of the major components in the EtOAc extracts of the metabolites of all four selected isolates. Meanwhile, two isolates (BPeK8 and BpeL6) that produce VOCs were selected from 55 isolates to evaluate their ability to inhibit the growth of A. tumefaciens and decrease crown gall disease. VOCs of BPeK8 and BPeL6 strongly affected the growth of A. tumefaciens. Scanning electron microscopic (SEM) analysis showed that the VOCs of the two isolates caused morphological abnormalities in A. tumefaciens cells. The results showed that VOCs produced by BPeK8 and BPeL6 can significantly decrease the pathogenicity of A. tumefaciens cells. The two isolates BPeK8 and BPeL6 were identified as Bacillus subtilis and Pseudomonas aeruginosa, respectively. GC-MS analysis identified the major peaks of VOCs produced by B. subtilis BPeK8 as dimethylamine, hydrazinecarboxamide, and acetoin. The major peaks of VOCs produced by P. aeruginosa BPeL6 were identified as oxalic acid, 1-butanol, 2-methyl-, (S)-, and cinnamaldehyde, (E)-. These results showed that many rhizobacteria species can control crown gall caused by A. tumefaciens by different mechanisms. |
| 520 #3 - SUMMARY, ETC. | |
| Summary, etc. | يعتبر مرض التدرن التاجي المتسبب عن بكتيريا tumefaciens Agrobacterium<br/>من أخطر الأمراض البكتيرية التي تؤثر على إنتاج مشاتل الأشجار ال م ثمرة في مصر والعديد من دول العالم .أظهرت دراسة ل 55 عزلة بكتيرية من منطقة الريزوسفير لنباتات الفاكهة ذات النواة الحجرية أن عشر عزلات منتجة ل إنزيم 1 أمينوسايكلوبروبان 1 كربوكسيلك أسيد .<br/>(ACC)تم التعرف عليها كعزلات من spp. Pseudomonas . أدى التلقيح المختلط لنبات الخروع ونبات الكالانشو إلى تقليل تكوين الأورام في كلا النباتين . كما وجد أن المستقلبات الثانوية ل 6 من العزلات قد عملت على تثبيط نمو tumefaciens A. وعزلتين منتجتان للمركبات العضوية المتطايرة |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issues also as CD. |
| 546 ## - LANGUAGE NOTE | |
| Text Language | Text in English and abstract in Arabic & English. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Plant Pathology |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | أمراض النبات |
| 653 #0 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Biocontrol |
| -- | crown gall |
| -- | Rhizobium radiobacter |
| -- | Pseudomonas spp |
| -- | Klebsiella |
| -- | Pantoea |
| -- | Enterobacter |
| -- | Bacillus subtilis |
| -- | Pseudomonas aeruginosa |
| -- | acdS gene |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Maurice Sabry Mikhail |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Maryan Makram Yousef |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ashraf Fathy Abd El-Rahman |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2025 |
| Supervisory body | Maurice Sabry Mikhail |
| -- | Maryan Makram Yousef |
| -- | Ashraf Fathy Abd El-Rahman |
| Universities | Cairo University |
| Faculties | Faculty of Agriculture |
| Department | Department of Plant Pathology |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Shimaa |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Edition | 21 |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Home library | Current library | Date acquired | Inventory number | Full call number | Barcode | Date last seen | Effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 03.11.2025 | 92337 | Cai01.07.16.Ph.D.2025.Im.R | 01010110092337000 | 03.11.2025 | 03.11.2025 | Thesis |