Skip navigation
DSpace logo
  • Home
  • Browse
    • SMD
      & Institutes
    • Browse Items by:
    • Published/ Complete Date
    • Author/ PI/CoPI
    • Title
    • Keyword (Publication)
  • Sign on to:
    • My KRISHI
    • Receive email
      updates
    • Edit Profile
ICAR logo

KRISHI

ICAR RESEARCH DATA REPOSITORY FOR KNOWLEDGE MANAGEMENT
(An Institutional Publication and Data Inventory Repository)


  1. KRISHI Publication and Data Inventory Repository
  2. Crop Science A5
  3. ICAR-Indian Institute of Maize Research G3
  4. CS-IIMR-Publication
"Not Available": Please do not remove the default option "Not Available" for the fields where metadata information is not available
"1001-01-01": Date not available or not applicable for filling metadata infromation
Please use this identifier to cite or link to this item: http://krishi.icar.gov.in/jspui/handle/123456789/69433
Title: Inducible direct defense responses in maize to pink stem borer (Sesamia inferens Walker): challenges and opportunities for sustainable solutions
Other Titles: Not Available
Authors: P. Lakshmi Soujanya
J. C. Sekhar
C.V. Ratnavathi
Chikkappa G. Karjagi
S.B. Suby
K. R. Yathish
N. Sunil
Sujay Rakshit
ICAR Data Use Licennce: http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf
Author's Affiliated institute: ICAR::Indian Institute of Maize Research
ICAR::Indian Institute of Millets Research
Published/ Complete Date: 2021-12-10
Project Code: Not Available
Keywords: Maize, pink stem borer, induced defense responses, host plant resistance
Publisher: Not Available
Citation: Lakshmi Soujanya P, Sekhar JC, C.V.Ratnavathi, Chikkappa G.Karjagi, S.B.Suby, K.R.Yathish, N.Sunil and Sujay Rakshit 2021. Inducible direct defense responses in maize to pink stem borer: challenges and opportunities for sustainable solution pp 118-119. In: Book of extended abstracts GPCP, 2021. Global Perspectives in Crop Protection for Food Security.TNAU Golden Jubilee International Conference, December, 8-10, 2021: pp. 360.
Series/Report no.: Not Available;
Abstract/Description: Maize (Zea mays L.) is the third most important cereal food crop after wheat and rice, grown in an area of 9.2 million ha with the production of 30.2 million MT (DES, 2021). Pink stem borer (PSB), Sesamia inferens Walker is one of the major insect pests in the winter maize resulting in 25.7-78.9 percent yield losses (Siddiqui and Marwaha 1993). The larvae feed inside the leaf sheath in groups and subsequently bore into the central shoot resulting in the formation of dead hearts. Understanding the mechanisms of Host Plant Resistance (HPR) can provide an opportunity to manage PSB. HPR is an economically viable, environmentally friendly, and sustainable strategy and is one of the most effective components of integrated pest management (IPM) modules. Understanding the plant-insect interactions is of utmost importance for developing effective pest management approaches. Therefore, the present study was undertaken to study whether the resistance was inducted in response to plant-insect and/or non-insect interactions. Materials and methods The experiment was conducted in two different sets one each to record the response of genotypes upon PSB infestation and defense responses of the genotypes against different treatments in field and pot, respectively. To investigate the maize defense responses, five treatments were designed including insect and non-insect interactions namely (i) control (untreated plants) (ii) PSB larvae infestation, (iii) mechanical wounding, (iv) mechanical wounding plus PSB regurgitation, (v) exposure to methyl jasmonate. The treatments were imposed at two stages i.e.V3 and V6 stages in resistant, moderately resistant and susceptible genotypes. Maize genotypes were categorized The quantification of two major defense related cell wall bound phenolic compounds namely p-Coumaric acid (p-CA) and ferulic acid (FA) was carried out through ultra-fast liquid chromatography (UFLC). The effect of induced treatments on p-CA and FA content at each sampling time were subjected to two-way ANOVA by using a general linear model (PROC GLM) using SAS version 9.3. Results and Discussion The p-CA content induced in leaf tissues of maize genotypes were intrinsically higher when challenged by PSB attack at V3 and V6 stages in short- and long-term responses. Higher p-CA content was observed in stalk tissues upon wounding and regurgitation in short- and long-term responses at V3 and V6 stages. Significant accumulation of FA content was also observed in leaf tissues in response to PSB feeding at V3 stage in long-term response while at V6 stage it was observed both in short- and long-term responses. In stalk tissues, methyl jasmonate induced higher FA content in short-term response at V3 stage. However, at V6 stage PSB feeding induced FA accumulation in the short-term while, wounding and regurgitation treatment-induced defense responses in the long-term. The study indicates that phenolic mediated defense responses in maize are induced by PSB attack followed by wounding and regurgitation and the response observed was more in resistant genotypes compared to susceptible ones. Breeding for the restoration of these defense chemicals or cross species transfer of defense metabolite production may harness the chemical defense capabilities of maize resulting in effective pest management.
Description: Not Available
ISSN: Not Available
Type(s) of content: Other
Sponsors: Not Available
Language: English
Name of Journal: NA
Volume No.: Not Available
Page Number: 118-119
Name of the Division/Regional Station: Winter Nursery Centre, ICAR-IIMR
Source, DOI or any other URL: Not Available
URI: http://krishi.icar.gov.in/jspui/handle/123456789/69433
Appears in Collections:CS-IIMR-Publication

Files in This Item:
File Description SizeFormat 
2022_ABSTRACT_GPCP_TNAU.pdf29.22 MBAdobe PDFView/Open
Show full item record


Items in KRISHI are protected by copyright, with all rights reserved, unless otherwise indicated.

  File Downloads  

Jun 2022: 81240 May 2022: 97531 Apr 2022: 94186 Mar 2022: 96096 Feb 2022: 93736 Jan 2022: 86503

Total Download
2790752

(Also includes document to fetched through computer programme by other sites)
( From May 2017 )

ICAR Data Use Licence
Disclaimer
©  2016 All Rights Reserved  • 
Indian Council of Agricultural Research
Krishi Bhavan, Dr. Rajendra Prasad Road, New Delhi-110 001. INDIA

INDEXED BY

KRISHI: Inter Portal Harvester

DOAR
Theme by Logo CINECA Reports

DSpace Software Copyright © 2002-2013  Duraspace - Feedback