Role of morphological traits and cell wall components in imparting resistance to pink stem borer, Sesamia inferens Walker in maize
Host Plant Resistance (HPR) is the most important component for sustainable management of insect pests. The purpose of the present work was to understand the role of various morphological and biochemical factors as defense mechanism and their interaction on different biological parameters attributed...
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Frontiers Media S.A.
2023-07-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2023.1167248/full |
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| author | P. Lakshmi Soujanya J. C. Sekhar Chikkappa G. Karjagi C. V. Ratnavathi R. Venkateswarlu K. R. Yathish S. B. Suby N. Sunil Sujay Rakshit |
| author_facet | P. Lakshmi Soujanya J. C. Sekhar Chikkappa G. Karjagi C. V. Ratnavathi R. Venkateswarlu K. R. Yathish S. B. Suby N. Sunil Sujay Rakshit |
| author_sort | P. Lakshmi Soujanya |
| collection | DOAJ |
| description | Host Plant Resistance (HPR) is the most important component for sustainable management of insect pests. The purpose of the present work was to understand the role of various morphological and biochemical factors as defense mechanism and their interaction on different biological parameters attributed to survival and development of pink stem borer (PSB), Sesamia inferens Walker in maize. The resistant and moderately resistant genotypes (DMRE 63, CM 500 and WNZ Exotic pool) suffered least leaf injury rating (LIR), dead hearts (DH%), percentage stem tunneling (ST%), number of entry/exit holes (E/EH) and showed deleterious effects on biological parameters of pink stem borer as compared to susceptible ones (CM 202 and BML 6). Resistance index among the genotypes varied from 0.11 to 0.46. The variation in morphological traits such as number of nodes, internode distance and stem diameter could not distinguish all the resistant genotypes from that of susceptible genotypes in terms of its mean value. Higher levels of biochemical constituents, viz., p-Coumaric acid (p-CA), ferulic acid (FA), acid detergent fibre (ADF) and acid detergent lignin (ADL) were observed in resistant genotypes compared to susceptible ones. Antibiosis was expressed in terms of reduced pupal weight when fed on WNZ Exotic pool, whereas larval weight and larval survival affected when fed on DMRE 63. Higher concentration of p-CA content in pith of resistant maize genotypes prolonged the pupal period of pink stem borer. Higher concentration of p-CA and FA contents in rind reduced the adult emergence, as they showed significant negative correlation between them. The larval period was prolonged with higher levels of ADF and ADL contents in maize genotypes either in rind or both rind and pith as both ADF and ADL content showed a significant positive correlation with the larval period. The Pearson correlation analysis of most of the biochemical constituents revealed significant negative correlation with damage parameters. The correlation coefficients between p-CA with DH (%), ST (%) and E/EH were r= -0.9642**, r= -0.9363**, and r= -0.9646**, respectively. Similarly, the correlation coefficients between FA with DH (%), ST (%) and E/EH were r= -0.9217*, r= -0.9563**, and r= -0.9434**, respectively and ADF with DH (%), ST (%) and E/EH were r= -0.9506**, r= -0.9611**, and r= -0.9709**, respectively. The study confirms that stem damage parameters can also be used as selection criteria along with LIR to identify resistant genotypes against pink stem borer. Based on the correlation analysis it was concluded that resistance to pink stem borer in maize is the result of interaction of several morphological and biochemical traits rather than a single factor. The findings obtained from the present study can be utilised in pink stem borer resistance breeding programmes to enhance and diversify the basis of resistance. |
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| language | English |
| last_indexed | 2024-03-12T22:05:41Z |
| publishDate | 2023-07-01 |
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| series | Frontiers in Plant Science |
| spelling | doaj.art-fad63a7b5c1444ebab06311ae7bc94882023-07-24T17:05:26ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-07-011410.3389/fpls.2023.11672481167248Role of morphological traits and cell wall components in imparting resistance to pink stem borer, Sesamia inferens Walker in maizeP. Lakshmi Soujanya0J. C. Sekhar1Chikkappa G. Karjagi2C. V. Ratnavathi3R. Venkateswarlu4K. R. Yathish5S. B. Suby6N. Sunil7Sujay Rakshit8Winter Nursery Centre, Indian Council of Agricultural Research (ICAR)-Indian Institute of Maize Research, Rajendranagar, Hyderabad, IndiaWinter Nursery Centre, Indian Council of Agricultural Research (ICAR)-Indian Institute of Maize Research, Rajendranagar, Hyderabad, IndiaDelhi Unit, Indian Council of Agricultural Research (ICAR)-Indian Institute of Maize Research, Pusa, New Delhi, IndiaPlant Breeding, Indian Council of Agricultural Research (ICAR)-Indian Institute of Millets Research, Rajendranagar, Hyderabad, IndiaPlant Breeding, Indian Council of Agricultural Research (ICAR)-Indian Institute of Millets Research, Rajendranagar, Hyderabad, IndiaWinter Nursery Centre, Indian Council of Agricultural Research (ICAR)-Indian Institute of Maize Research, Rajendranagar, Hyderabad, IndiaDelhi Unit, Indian Council of Agricultural Research (ICAR)-Indian Institute of Maize Research, Pusa, New Delhi, IndiaWinter Nursery Centre, Indian Council of Agricultural Research (ICAR)-Indian Institute of Maize Research, Rajendranagar, Hyderabad, IndiaPlant Breeding, Indian Council of Agricultural Research (ICAR)-Indian Institute of Agricultural Biotechnology Garkhatanga, Ranchi, IndiaHost Plant Resistance (HPR) is the most important component for sustainable management of insect pests. The purpose of the present work was to understand the role of various morphological and biochemical factors as defense mechanism and their interaction on different biological parameters attributed to survival and development of pink stem borer (PSB), Sesamia inferens Walker in maize. The resistant and moderately resistant genotypes (DMRE 63, CM 500 and WNZ Exotic pool) suffered least leaf injury rating (LIR), dead hearts (DH%), percentage stem tunneling (ST%), number of entry/exit holes (E/EH) and showed deleterious effects on biological parameters of pink stem borer as compared to susceptible ones (CM 202 and BML 6). Resistance index among the genotypes varied from 0.11 to 0.46. The variation in morphological traits such as number of nodes, internode distance and stem diameter could not distinguish all the resistant genotypes from that of susceptible genotypes in terms of its mean value. Higher levels of biochemical constituents, viz., p-Coumaric acid (p-CA), ferulic acid (FA), acid detergent fibre (ADF) and acid detergent lignin (ADL) were observed in resistant genotypes compared to susceptible ones. Antibiosis was expressed in terms of reduced pupal weight when fed on WNZ Exotic pool, whereas larval weight and larval survival affected when fed on DMRE 63. Higher concentration of p-CA content in pith of resistant maize genotypes prolonged the pupal period of pink stem borer. Higher concentration of p-CA and FA contents in rind reduced the adult emergence, as they showed significant negative correlation between them. The larval period was prolonged with higher levels of ADF and ADL contents in maize genotypes either in rind or both rind and pith as both ADF and ADL content showed a significant positive correlation with the larval period. The Pearson correlation analysis of most of the biochemical constituents revealed significant negative correlation with damage parameters. The correlation coefficients between p-CA with DH (%), ST (%) and E/EH were r= -0.9642**, r= -0.9363**, and r= -0.9646**, respectively. Similarly, the correlation coefficients between FA with DH (%), ST (%) and E/EH were r= -0.9217*, r= -0.9563**, and r= -0.9434**, respectively and ADF with DH (%), ST (%) and E/EH were r= -0.9506**, r= -0.9611**, and r= -0.9709**, respectively. The study confirms that stem damage parameters can also be used as selection criteria along with LIR to identify resistant genotypes against pink stem borer. Based on the correlation analysis it was concluded that resistance to pink stem borer in maize is the result of interaction of several morphological and biochemical traits rather than a single factor. The findings obtained from the present study can be utilised in pink stem borer resistance breeding programmes to enhance and diversify the basis of resistance.https://www.frontiersin.org/articles/10.3389/fpls.2023.1167248/fullmaizehost plant resistancedamage parameterspink stem borerantibiosisbiochemical constituents |
| spellingShingle | P. Lakshmi Soujanya J. C. Sekhar Chikkappa G. Karjagi C. V. Ratnavathi R. Venkateswarlu K. R. Yathish S. B. Suby N. Sunil Sujay Rakshit Role of morphological traits and cell wall components in imparting resistance to pink stem borer, Sesamia inferens Walker in maize Frontiers in Plant Science maize host plant resistance damage parameters pink stem borer antibiosis biochemical constituents |
| title | Role of morphological traits and cell wall components in imparting resistance to pink stem borer, Sesamia inferens Walker in maize |
| title_full | Role of morphological traits and cell wall components in imparting resistance to pink stem borer, Sesamia inferens Walker in maize |
| title_fullStr | Role of morphological traits and cell wall components in imparting resistance to pink stem borer, Sesamia inferens Walker in maize |
| title_full_unstemmed | Role of morphological traits and cell wall components in imparting resistance to pink stem borer, Sesamia inferens Walker in maize |
| title_short | Role of morphological traits and cell wall components in imparting resistance to pink stem borer, Sesamia inferens Walker in maize |
| title_sort | role of morphological traits and cell wall components in imparting resistance to pink stem borer sesamia inferens walker in maize |
| topic | maize host plant resistance damage parameters pink stem borer antibiosis biochemical constituents |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2023.1167248/full |
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