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솔잎혹파리 침해에 따른 감수성수종인 소나무와 저항성수종인 리기다소나무에 있어서 광합성 및 엽의 색소변이에 관한 연구
이돈구,성주한 ( Don Koo Lee,Joo Han Sung ) 한국산림과학회 1984 한국산림과학회지 Vol.65 No.1
Susceptible trees of Pinus densiflora and resistant trees of Pinus rigida following pine gall midge (Tnecodiplosis japonensis Uchida et Inouye) attack were seasonally compared to examine the variation in needle growth and photosynthetic ability, respiration rate, chlorophyll contents, carotenoid and anthocyanin contents. Also, carotenoid and anthocyanin contents of larvae both from soil and from galled tissue were compared during March and September, respectively. The plantation damaged severely by this insect consisted mostly of 10-to 15-year old P. rigida and P. densiflora. The results obtained in this study were as follows: 1) The length of the infested needles of P. densiflora decreased by 48.1 percent compared with the normal needles, while that of P. rigida did 37.4 percent. 2) All of P. densiflora and P. rigida showed higher photosynthetic ability in normal needles than in infested needles. The maximum photosynthetic ability of P. densiflora was shown in mid-August, while that of P. rigida in mid-October. In contrast to that, respiration rate of infested needles was higher than that of normal needles in both species. The respiration rate of P. rigida was higher than that of P. densiflora. 3) P. rigida had higher total chlorophyll contents than P. densiflora. The total carotenoid contents tents in infested needles were higher than those in normal needles of both species. 4) Total carotenoid contents were generally higher in P. rigida than in P. densiflora during the growing season. The total carotenoid content (0.094㎎/g) in larvae from soil was similar to that (0.092㎎/g) in larvae from galled tissues. 5) Infested needles of both species showed higher anthocyanin contents than normal needles. Higher anthocyanin contents in galled needles were due primarily to its active formation stimulated by larval attack. Thus, reddish-brown coloration occurred only in galled needles of P. densiflora.
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솔잎혹파리 幼蟲 成分 및 幼蟲의 寄生에 따른 소나무類 針葉內 生化學的 物質 變化
安元榮,李敦求,成周翰 서울大學校農科大學 1984 서울대농학연구지 Vol.9 No.1
Some biochemical components both in the needles of Pinus densiflora susceptible and Pinus rigida resistant to pine gall midge and in the larvae were examined to provide a basic information about gall forming mechanism in the needles attacked by this midge. Chemical analysis for the needles was conducted both before and after insect attack to determine what components are involved in gall formation. Neither monoterpenes nor carotenoids were detected in the larvae of pine gall midge. However, amino acids and carbohydrates were detected both in the larvae and in the needles, and more in normal needles than in infested needles. Tryptophan, a precursor of indole acetic acid was detected both in galled tissues of P. densiflora and in the larvae, indicating that a growth substance is involved in gall formation. Monoterpenes may be attactants to the pine gall midge rather than repellents because those were detected more in susceptible P. densiflora than in resistant P. rigida, and also more in normal needles than in infested needles.
ScienceON
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