http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : ( Anders Johnsson ) (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Effects of Light on Ultradian Rhythms in the Lateral Leaflets of Desmodium gyrans
( Mohammad Idrish Miah ),( Anders Johnsson ) 한국식물학회 2007 Journal of Plant Biology Vol.50 No.4
Rhythmic up-down movements were studied in the lateral leaflets of Desmodium gyrans (L.F.) DC. These were recorded with a video-computer system, whereby the digital video signals from a CCD camera were processed with special software. Under control conditions (24℃ and 0.1 nM cm-2 s-1 of stable, dim light), the average period of lateral leaflet movement was 3.5 min. In the presence of light stimuli (for 2 min), those leaflets always moved toward the light, regardless of where it was applied to any axial part of the pulvinus. The strongest effect was manifested by a reduced amplitude of movement and, thus, a shortened period, which could be up to ~43% less under moderate light intensity (5 nM cm-2 s-1). Oscillations regained their original regularity over ~10 cycles after the light stimulus was removed. In addition, these oscillations temporarily disappeared after long exposure (~10 min) under moderate light, or when the leaflets were quickly exposed to a higher intensity (~12 nM cm-2 s-1). Therefore, we have now demonstrated that light can affect physiological parameters that are involved in the control of oscillations.
ScienceON
KISS연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
