文献一覧: 植物学雑誌 (雑誌)

On the trnnks of pine trees, Pinus densiflora and P. Thunbergii, there are found somewhat globular, large wooden protuberances, the formation of which is caused by the infection of a pathogenous fungus Cronartium quercuum Miyabe. During a relatively short winter period, from the middle of January to the beginning of February in Middle Japan, pale yellow, sweet watery drops are exudated from the cracks of the protuberances. This phenomenon was from an old time known and named“pine honey”by natives. The yellow colour is that of minute spermatia of the fungus, which are formed just at the exudation of sugary liquid. We have been studyiug this curious phenomenon, and found that the sweetness of the exadate is caused by two sugars, namely d-fructose and d-glucose, the amount of the former being 3.3 times that of the latter.The absolute amount of the sugars has been estimated to be about 3.7%, though it would vary according to the duration the liquid experiences after the exudation, that is to say, to the possible evaporation, which in turn varies according to the activity of the plant. That the saccharose, as is the case with sugar maple, does not occur here, together with the fact that the fructose is the leading sugar, is noteworthy.

2020-07-21 16:06:27
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5 0 0 0 OA The Vegetation of Lakes and Swamps in Japan

著者: H. Nakano
出版者: The Botanical Society of Japan
雑誌: 植物学雑誌 (ISSN:0006808X)
巻号頁・発行日: vol.25, no.289, pp.35-51, 1911 (Released:2007-05-24)
被引用文献数: 2 3

2019-08-26 01:49:12
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5 0 0 0 OA ヒガンバナ属の人工雑種の形態学的•細胞学的研究 III

著者: 竹村英一
出版者: 公益社団法人日本植物学会
雑誌: 植物学雑誌 (ISSN:0006808X)
巻号頁・発行日: vol.75, no.890, pp.324-330, 1962 (Released:2006-12-05)
参考文献数: 13
被引用文献数: 2 2

1. L. aurea と L. radiata var. pumila の人工雑種を作り出して, その形態学的および細胞学的特徴をしらべた.2. この人工雑種は, 外部形態的には, 両親植物の中間型を示し, 自然種のシロバナマンジュシャゲ (L. albifora) に大変よく似ている.3. 核学的には, 根端細胞において, 2n=18=4V+14Rを示し, 異質二倍体である.4. 花粉母細胞の減数分裂第一分裂前期に, この人工雑種においても, シロバナマンジュシャゲにおけると同様なV形染色体の両腕に棒形染色体がそれぞれ1個ずつ対合した異形三価染色体を形成する.5. この人工雑種は, 外部形態, 核型および減数分裂における染色体の行動が, シロバナマンジュシャゲとほとんど全く一致する. この事実によって, 稲荷山のシロバナマンジュシャゲ (シロバナヒガンバナ) は, ショウキランと二倍体ヒガンバナとの間に生じた自然雑種であるという考えが正しいことを証明することができた.

2018-09-26 11:30:57
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4 0 0 0 OA コクサギ型葉序と其意義

著者: 前川文夫
出版者: 公益社団法人日本植物学会
雑誌: 植物学雑誌 (ISSN:0006808X)
巻号頁・発行日: vol.61, no.715-716, pp.7-10, 1948 (Released:2007-06-18)
参考文献数: 2
被引用文献数: 2 3

Orixa japonica i hunb. (Rutaceae), Lagerostroêmia indica L. (Lythraceae) and Berchemiella berchemiaefolia Nakai(Rhamnaceae)have peculiar alternate leaf arrangements, in which every two leaves combine to alternate on branches. It is an intermediate type of phyllotaxis, induced from the decussate type through the longitudinal dispersion between two members of each opposite pairs, instead of the change of orthostichy, and I call it Orixate Type (Folia orixata) after the genus name Orixa.By the connection of this intermediate type, one of the tendency in phyllotaxis of dicotyledoneous plants will be formulated as follows:-(1) Decussate type-(through longitudinal dispersion)→(2) Orixate type-(through oligomery)→(3) Distichous type-(through horizontal dislocation i. e. spirality)→Quincuncial type.