Scholarlink

<p>The alterations in biochemical components, upon pathogen inoculation, play a significant role in developing genotypes with durable resistance to plant diseases. Considering the importance of biochemical parameters in host resistance, an investigation was carried out to elucidate the role of potential biochemical parameters, associated with spot blotch resistance in wheat genotypes. For the study, total phenol content and activities of defense related enzymes, polyphenol oxidase (PPO) and <i>phenylalanine ammonia lyase</i> (PAL), were analyzed in control and inoculated leaves (48 h after inoculation) of fifty wheat genotypes. All three parameters were observed to increase in the genotypes evaluated. However, the highest increase in phenol (76.29%), PPO (453.58%) and PAL (336.77%) was obtained in DBW 39, while the DBW 380 recorded lowest increase in Phenol (26.03%), PPO (82.64%) and PAL (40.05%). Correlation studies revealed a significant negative correlation between disease severity and the increase in biochemical parameters. It can, thus, be inferred that higher phenolic content and increased activities of PPO and PAL might be responsible for hindering pathogen growth and multiplication in the host tissues, which might have led to resistant reaction in genotypes against <i>Bipolaris sorokiniana</i>. These biochemical parameters can be utilized further as promising criteria for varietal screening trials in advanced breeding programs in future endeavors.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Unveiling the role of phenol and defense related enzymes in host resistance to spot blotch × wheat pathosystem

  • 期刊论文

  • 发表日期：

    2025年7月1日

查看全文
  • Sunanda Chakraborty,
  • Sunita Mahapatra,
  • Anubhab Hooi,
  • B. Tejabhushan,
  • Sk. Hasibul Alam,
  • Prem Lal Kashyap

摘要

The alterations in biochemical components, upon pathogen inoculation, play a significant role in developing genotypes with durable resistance to plant diseases. Considering the importance of biochemical parameters in host resistance, an investigation was carried out to elucidate the role of potential biochemical parameters, associated with spot blotch resistance in wheat genotypes. For the study, total phenol content and activities of defense related enzymes, polyphenol oxidase (PPO) and phenylalanine ammonia lyase (PAL), were analyzed in control and inoculated leaves (48 h after inoculation) of fifty wheat genotypes. All three parameters were observed to increase in the genotypes evaluated. However, the highest increase in phenol (76.29%), PPO (453.58%) and PAL (336.77%) was obtained in DBW 39, while the DBW 380 recorded lowest increase in Phenol (26.03%), PPO (82.64%) and PAL (40.05%). Correlation studies revealed a significant negative correlation between disease severity and the increase in biochemical parameters. It can, thus, be inferred that higher phenolic content and increased activities of PPO and PAL might be responsible for hindering pathogen growth and multiplication in the host tissues, which might have led to resistant reaction in genotypes against Bipolaris sorokiniana. These biochemical parameters can be utilized further as promising criteria for varietal screening trials in advanced breeding programs in future endeavors.