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Abstract
The present study investigated the effect of ferulic acid (FA; 0–1000 µM) on early growth, and rhizogenesis in mung bean (Vigna radiata) hypocotyls and associated biochemical changes. FA severely affected the radicle elongation and number of secondary roots after 72 h. The root and shoot length, number and length of secondary roots, and seedling dry weight of one-week-old seedlings of mung bean were decreased by 64%. The rooting potential (percent rooting, number and length of adventitious roots) of mung bean hypocotyls under in vitro conditions was significantly inhibited in response to 1–100 µM FA. At 1000 µM there was complete cessation of rooting. FA caused a reduction in the contents of water-soluble proteins and endogenous total phenolics, whereas the activities of proteases, peroxidases, and polyphenol peroxidases increased. The study concludes that FA inhibits root growth and development, and in vitro rooting process in mung bean by interfering with biochemical processes that are crucial for root formation.
| Abbreviations | ||
| Ferulic acid | = | FA |
| Dry weight | = | DW |
| Root length | = | RL |
| Shoot length | = | SL |
| Lower rooted hypocotylar region | = | LRHR |
| Peroxidases | = | PODs |
| Polyphenol oxidases | = | PPOs |
| Total endogenous phenolic content | = | TP |
| 2,3,5-triphenyl tetrazolium chloride | = | TTC |
| Abbreviations | ||
| Ferulic acid | = | FA |
| Dry weight | = | DW |
| Root length | = | RL |
| Shoot length | = | SL |
| Lower rooted hypocotylar region | = | LRHR |
| Peroxidases | = | PODs |
| Polyphenol oxidases | = | PPOs |
| Total endogenous phenolic content | = | TP |
| 2,3,5-triphenyl tetrazolium chloride | = | TTC |
