Knowledge Center Catalog

Relevance of pathogen diversity in management of leaf spot and leaf blight diseases on wheat in central Asia (Record no. 26524)

MARC details
000 -LEADER
fixed length control field 04218nab a22003977a 4500
001 - CONTROL NUMBER
control field G89613
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20220607163754.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 220607s2006 kz |||p|op||| 00| 0 rus d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 1814-8417
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title rus
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) CIS-4879
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Maraite, H.
9 (RLIN) 22659
245 10 - TITLE STATEMENT
Title Relevance of pathogen diversity in management of leaf spot and leaf blight diseases on wheat in central Asia
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Kazakhstan :
Name of publisher, distributor, etc. Ministry of Agriculture of the Republic of Kazakhstan,
Date of publication, distribution, etc. 2006.
340 ## - PHYSICAL MEDIUM
Material base and configuration Computer File|Printed
500 ## - GENERAL NOTE
General note Abstract in English and Russian.
500 ## - GENERAL NOTE
General note Peer-review: No - Open Access: No
500 ## - GENERAL NOTE
General note Peer review
520 ## - SUMMARY, ETC.
Summary, etc. During Helminthosporium leaf blight surveys performed in 2003, 2004 and 2005 between May and August on winter and spring wheat in various regions of Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan and in Western Siberia (Russia), samples of wheat leaves showing leaf spot and leaf blight symptoms were collected at 113 locations or plots and analysed at the Université catholique de Louvain, Belgium. The analysis under a microscope and/or isolation revealed the presence of Pyrenophora tritici-repentis on 77% of the samples. Its prevalence fell to 31% on the samples from the Omsk region in Western Siberia where Phaeosphaeria nodorum was detected on all analysed samples. Overall, P. nodorum was associated with lesions on 50% of the samples, with a strong decline in prevalence in South Kazakhstan, Kyrgyzstan and Uzbekistan. Mycosphaerella graminicola was detected on 23% of the samples and appeared more frequent than P. nodorum in the latter regions. Mixed infections of two or even three of these pathogens were observed on 43% of the samples. Cochliobolus sativus was detected on only 10% of the samples. Some 101 single conidia strains of P. tritici-repentis were inoculated for race characterization on a set of differential wheat genotypes. Of these, 87% belonged to race 1, while only 7%, 5% and 1% were identified as race 2, race 3 and race 4, respectively. Evolution in race prevalence in Central Asia might affect the stability of tan spot resistance. The distribution of the mating type ideomorphs was determined for 49 P. nodorum isolates. The proportion of MAT-1 and MAT-2 isolates appeared balanced (23:19) among the Kazakh and Russian origins, but no MAT-2 isolate has yet been found in<br/>Tajikistan. The role of ascospores in glume blotch epidemiology might be reduced for a population with a skewed proportion of the mating types. MAT-1 and MAT-2 ideomorphs of M. graminicola were present in a rather balanced proportion (24:17) throughout the surveyed area. Sensitivity in vitro of the P. nodorum and M. graminicola isolates to propiconazole (Tilt) and azoxystrobin (Amistar) was assessed in PDB. No resistant isolate was detected. The EC50 values of propiconazole and azoxystrobin ranged for M. graminicola from <0.003 to 0.013mg/L and 0.01 to 0.078mg/L, respectively; and for P. nodorum from 0.013 to 0.085mg/L and 0.016 to 0.267mg/L, respectively. The abundance of crop residues associated with conservation tillage practices, together with the frequent observation of Pyrenophora tritici-repentis pseudothecia on the stubbles as well as the regular isolation of both mating types of Phaeosphaeria nodorum and M. graminicola from the leaves, highlight the risk of a rapid evolution in the population structure of these pathogens with regard to the dispersion of virulence or fungicide resistance genes.
536 ## - FUNDING INFORMATION NOTE
Text of note Research and Partnership Program
546 ## - LANGUAGE NOTE
Language note Text in Russian
594 ## - STAFFID
StaffID INT1237
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1197
Topical term or geographic name as entry element Pathogens
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1206
Topical term or geographic name as entry element Plant diseases
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1310
Topical term or geographic name as entry element Wheat
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 11012
Topical term or geographic name as entry element Disease management
651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
Source of heading or term AGROVOC
9 (RLIN) 4372
Geographic name Central Asia
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Mercado Vergnes, D.
9 (RLIN) 22893
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Renard, M.E.
9 (RLIN) 22895
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Zhanarbekova, A.
9 (RLIN) 22894
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 826
Personal name Duveiller, E.
Miscellaneous information DG's Office
Field link and sequence number INT1237
773 0# - HOST ITEM ENTRY
Title Agromeridian
Note 634522
Related parts v. 2, no. 3, p. 105-114
Place, publisher, and date of publication Kazakhstan : Ministry of Agriculture of the Republic of Kazakhstan, 2006.
Record control number G89379
International Standard Serial Number 1814-8417
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Source of classification or shelving scheme Dewey Decimal Classification
Suppress in OPAC No
Holdings
Date last seen Total Checkouts Full call number Barcode Copy number Price effective from Koha item type Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
02/10/2015   CIS-4879 634522 1 02/10/2015 Article Not Lost Dewey Decimal Classification     CIMMYT Staff Publications Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 02/10/2015

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org