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KMID : 1024519950040040323
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Journal of the Environmental Sciences
1995 Volume.4 No. 4 p.323 ~ p.333
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The Effect of Plant Hormones and Light Quality on the Invertase Activity in Maize (Zea mays L.) and Mung Bean (Phaseolus radiatus L.)
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Lee Dong-Hee
Hong Jung-Hee
Kim Yeong-Sang
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Abstract
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The effects of plant hormones (NAA, and BA) and light qualities (white, red, green and blue light) on the changes of reducing sugar contents and invertase isozyme activities in leaves of maize (Zea mars L.) and mung bean (Phseolw radiatus L.) seedlings were investigated. NAA accelerated the increase of reducing sugar contents and invertase isozyme activities, on the contrary, had little effect in the accumulation of reducing sugar and in the increase of enzyme activities from the leaves of maize and mung bean seedlings. On the other hand, BA accelerated an increase in the activities of the invertase isozyme from the leaves of mung bean seedlings whereas it had little effect in the increase of the enzyme activities from those of maize seedlings. The accumulation of reducing sugar in leaves of both seedlings was promoted by red light irradiation compared to white light irradiation, while the activities of the enzyme were little affected by various light Qualities. In the simultaneous applications of plant hormone and light quality, NAA with white light was very effective in the increase of reducing sugar contents and the enzyme activities from the leaves of mung bean seedlings, whereas NAA application with blue light showed a prominent enhancement in the reducing sugar contents and the enzyme activities from those of maize seedlings. These results suggest that plant hormone, particularly NAA, may be a more important factor than various light Qualities in the stimulation of invertase activity.
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KEYWORD
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acid invertase, alkaline invertase, maize, mung bean, NAA, GA3, BA, light quality
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