EXPERIMENTAL CONTROL OF FLOWERING IN LEMNA. III. A RELATIONSHIP BETWEEN MEDIUM COMPOSITION AND THE OPPOSITE PHOTOPERIODIC RESPONSES OF L. PERPUSILLA 6746 AND L. GIBBA G3
EXPERIMENTAL CONTROL OF FLOWERING IN LEMNA. III. A RELATIONSHIP BETWEEN MEDIUM COMPOSITION AND THE OPPOSITE PHOTOPERIODIC RESPONSES OF L. PERPUSILLA 6746 AND L. GIBBA G3
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浮萍开花的实验控制。
DOI：
10.1002/j.1537-2197.1961.tb11659.x
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发表时间：
1961
影响因子：
3
通讯作者：
W. Hillman
中科院分区：
文献类型：
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作者：
W. Hillman
Hillman，威廉姆斯. (Yale美国、康涅狄格州纽黑文）实验控制浮萍开花。三.研究了培养基组成与L. perpusilla 6746和L. gibba G3. Amer. Jour.机器人48（5）：413-419。伊卢斯1961.-在简单的Hoagland型培养基中，L. perpussilla 6746花，不论日照长短;L. gibbaG 3在任何光照下都不开花，只要培养基经常更换。乙二胺四乙酸（EDTA）能抑制L.长日照而不短日照，使L.吉本斯的日子长而不短。用培养基“陈化”，通过L.赤霉素几个星期（在任何光周期），以及与酒石酸。EDTA和“老化”培养基的有效性在pH值接近5时比在pH值4或以下时更大，这可能反映了通过金属螯合作用的作用。这些结果最容易解释为对光周期敏感性的影响，并建议在photoperiodism的金属的核心作用。
Hillman, WilliamS. (Yale U., New Haven, Conn.)Experimental control of flowering in Lemna. III. A relationship between medium composition and the opposite photoperiodic responses of L. perpusilla 6746 and L. gibba G3.Amer. Jour. Bot. 48(5): 413–419. Illus. 1961.—In a simple Hoagland‐type medium,L. perpusilla6746 flowers, irrespective of daylength;L. gibbaG3 does not flower under any daylength, as long as the medium is changed frequently. Ethylenediaminetetraacetic acid (EDTA) prevents the flowering ofL. perpusillain long days but not in short, and brings about the flowering ofL. gibbain long days but not in short. The same results are obtained with medium “aged” by the growth in it ofL. gibbafor several weeks (in any photoperiod) as well as with tartaric acid. The effectiveness of both EDTA and “aged” medium is greater at pH levels near 5 than at 4 or below, probably reflecting action through metal‐chelation. These results are most easily interpreted as effects on photoperiodic sensitivity, and suggest a central role of metals in photoperiodism.