Relationships between Salicylic Acid Content, Phenylalanine Ammonia-lyase (PAL)Activity, and Resistance of Barley to Aphid Infestation (Record no. 47041)

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control field 20250625153910.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-12836
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245 10 - TITLE STATEMENT
Title Relationships between Salicylic Acid Content, Phenylalanine Ammonia-lyase (PAL)Activity, and Resistance of Barley to Aphid Infestation
490 0# - SERIES STATEMENT
Volume/sequential designation J. Agric. Food Chem., 51(8), p.2227-2231, 2003
520 3# - SUMMARY, ETC.
Summary, etc. It has been suggested that salicylic acid (SA)is a signal in acquired resistance to pathogens in several plants. Also, it has been suggested that infestation of plants causes an increase in the activity of phenylalanine ammonia-lyase (PAL), a key phenolic biosynthesis enzyme. The purpose of this work was to investigate whether the induction of SA and PAL activity is related to the susceptibility of barley to aphid infestation. The induction of free and conjugated SA in two barley cultivars that differ in susceptibility to aphids was analyzed. Analyses of several physiological parameters showed that cv. UNA-80 was more susceptible to the aphid Schizaphis graminum than cv. LM-109. Salicylic acid was not detected in noninfested plants. Levels of free and conjugated SA in cv. LM-109 and of conjugated SA in cv. UNA-80 increased with aphid infestation, whereas the levels of free SA in cv. UNA-80 remained high under all infestation degrees. Maximum values reached in both cultivars were not significantly different. With respect to PAL activity, cv. LM-109 showed a significantly higher specific activity than cv. UNA-80, the more susceptible cultivar. The relationship between the susceptibility of a plant to aphid and SA induction and PAL activity is discussed.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element HORDEUM VULGARE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element GREENBUG
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SCHIZAPHIS GRAMINUM
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SALICYLIC ACID
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PAL
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Chaman, M.E.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Copaja, S.V.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Argandoña, V.H.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1uEqPAq4sZs1k91-YRyVFY26Ox3hbVGO0/view?usp=drivesdk">https://drive.google.com/file/d/1uEqPAq4sZs1k91-YRyVFY26Ox3hbVGO0/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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Source of classification or shelving scheme Clasificación local
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-12836 25.06.2025 25.06.2025 Documentos solicitados