All issues
Volume 60 (1947)
- Issue 703-714 Pages 1･･･
Volume 60, Issue 703-714
Displaying 1-31 of 31 articles from this issue
- |<
- <
- 1
- >
- >|
-
1947 Volume 60 Issue 703-714 Pages Cover_703-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (390K) -
Hirosi NAKAMURA1947 Volume 60 Issue 703-714 Pages 1-6
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSEs wurde festgestellt, dass in Leuehtorganen bzw. in den daran ansechliessenden Organen von verschiedenen Leuchtorganismen ein Flavinderivat reichlich vorkommt. Es ist also wahrscheinlich, dass dieses Flavinderivat an dem von Oxyluciferin-Luciferin-System hervorgerufenen Vorgang beteiligt sein kann. Die umkehrbare Oxydoreduktion bei Oxyluciferin-Luciferin-System in vivo dürfte also. unter Anteilnahme von diesem Flavinderivat, wahrscheinlich Alloxazin-Adenin-Dinucleotid (AAD) und zwar im Vorhandensein von Aminosäure vonstatten gehen. Diese Beziehungen wurden wie folgt ausgedrückt:
Es scheint uns, dass das sogen. Photophelein N. Harveys bei nicht leuchtenden Organismen, das durch Beifügung von einer aus Leuchtorganismen hergestellten Luciferase-Lösung das Leuchten hervorbringt, andere Substanz als das Luciferin und zwar etwa ein Flavinderivat, wie Alloxazin-Adenin-Dinucleotid darstellt, welches auf das in der Luciferase-Lösung enthaltene Oxyluciferin reduzierend einwirkt.View full abstractDownload PDF (710K) -
Hikaru NISIUTI1947 Volume 60 Issue 703-714 Pages 7-8
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSThe relation of the endodermis depression and the water absorption of root will be interpretable by considering that the water equilibrium between the solution in the tube and its sorrounding cells varies according to the change of concentration of the solution.View full abstractDownload PDF (212K) -
Kozo Hayashi, Tomiyo Inoue1947 Volume 60 Issue 703-714 Pages 8-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (62K) -
Michio TSUDA1947 Volume 60 Issue 703-714 Pages 9-15
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSOsmotic concentrations and NaCl contents of expressed vegetable saps of some halophytes and the conditions of the soils covered with their vegetations were investigated (osmotic concentrations were determined in cryoscopic method), with results as shown in the following table.
As will be seen from the foregoing results, Salicornia herbacea is distinguished from the other plants under investigation not only by the highest osmotic concentration and the greatest amount of NaCl content of its sap but also by the highest salinity of the soil where it grows. From this we may conclude that among the investigated plants, Salicornia herbacea is the strongest, and Statice japonica, Suaeda maritima, and Suaeda japonica are less strong in their halophytic characters.View full abstractDownload PDF (797K) -
Isao Hurusawa1947 Volume 60 Issue 703-714 Pages 16-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (100K) -
Masa URAGUCHI1947 Volume 60 Issue 703-714 Pages 17-22
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESS1.In the species of Spirogyra observed, the cells seem to go through the following four stages during the interval between one cell division and another: that is, (1) stage of nuclear division, (2) stage of nuclear movement (small cell stage), (3) stage of cell growth (stage of medium-sized cell), (4) resting stage (large cell stage).
2. In the same filament of Spirogyra, small cells must be younger than large cells.
3. In the small cells, the further the nucleus is apart from the center of the cell, the shorter the time elapsed after the division seems to be.
4. Cell divisions are found in the scattered portions of the filament of Spirogyra.
5. It appears that a cell division in one part of the filament induces divisions in the neighbouring cells in the same filament.View full abstractDownload PDF (555K) -
Kozo Hayashi, Kazuhiko Ouchi1947 Volume 60 Issue 703-714 Pages 22-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (60K) -
Cytological study on the division of plastidAkira YUASA1947 Volume 60 Issue 703-714 Pages 23-30
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESS1. The rhizophore or leaf of Selaginella uncinata is viable for two days, at least, being inbedded in well-water, under the microscope.
2. Concerning the division of leucoplast, chromoplast and chloroplast, three types are recognized, namely: the usual type, lateral division type and longitudinal division type.
3. The time required by the usual type is about 14 hours and that by the lateral division one about 12 hours.
4. The intimate relation can be presumed between the division of plastid and the formation of assimilation starch.
5. Most of the divisions of the usual type finish between 19 o′clock and 2 o′clock of the next day.
6. In the cells of the marginal portion of the extreme young leaf, the plastid takes the Golgi or chondriosome-like form and divides according to the various types of the division. In the bar-form plastid which divides according to the longitudinal division type, the spiral structure can be observed clearly.
7. It is supposed that the division of plastid can be produced or accelerated by the action of some chemical substance.View full abstractDownload PDF (818K) -
Kiyotaka Hisauchi1947 Volume 60 Issue 703-714 Pages 30-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (64K) -
Dyûhei SATO1947 Volume 60 Issue 703-714 Pages 31-36
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSThere are five different karyotypes in Agavaceae of Hutchinson, that is, (1) Yucca-Agave type (Yucca, Hesperoaloe, Agave, Furcraea), Beschorneria, Bravoa, Polyanthes, (2) Nolina type (Nolina, Dasylirion), (3) Phormium type, (4) Dracaena type (Dracaena, Cordyline, Sansevieria) and (5) Doryanthes type. These distinct types have some karyotypical resemblance with each other not only in the same family Agavaceae but also are similar to the other genera in allied families Liliaceae and Palmae. For example, Phormium. type (2n=32) is similar to Dracaena type (2n=38) in spite of different basic number and Nolina type (2n=36) also resembles abovementioned karyotypes of which chromosome complements have smaller sizes than that of Nolina type. Doryanthes type (2n=48) has four long and fourty-four short chromosomes and one arm of the long chromosome with median constriction may translocate to the short chromosome, so that two long chromosomes with subterminal constrictions (A chromosomes of Yucca-Agave type) may result and vice versa. Such karyotype alteration may explain the relation between the Yucca-Agave type and Doryanthes type, although a considerable difference is shown in the chromosome size. Yucca-Agave type (2n=60) is clearly distinguished from the three remaining types in Agavaceae, even though some karyotype alterations are taken into consideration for the present.
The phylogeny of these types in Agavaceae was considered by the writer to be derived from the Liliaceous stock and developed further to Palmae. Accordingly five following lines are postulated based upon the karyotype analysis in these families and allies.
(1) Eucomis (Scilleae) 2n=60=8A+8B+44C, Hosta (Hemerocallideae) 2n=60=8A+2B+50C→Yucca-Agave type 2n=60=10A+50C; (2) Ophiopogon (Ophiopogoneae) 2n=36=2A+18B+16C→Nolina type 2n=36=12A+24C→Trithrinax (Corypheae) 2n=36=8A+10B+18C; (3) Dianella (Dianelleae) 2n=32=8A+4B +200→Phormium type 2n=32=8A+24C→Cocos (Cocoineae) 2n=32=8A+24C; (4) Dracaena type 2n=38=4A+34C→Phoenix (Phoeniceae) 2n=36=4A+32C, Livistona (Corypheae) 2n=36=4A+32C, Oreodoxa (Areceae) 2n=38=2A+6B+30C; (5) Doryanthes type 2n=48=4A+44C, The last type has no similar karyotypes in both Liliaceae and Palmae, but karyotype of Lloydia (Tulipeae) 2n=24=4A+2B+18C seems to be most probable one when karyotype alteration is taken into consideration and also is similar to Yucca-Agave type (cf. Fig. 1).
In short the writer clearly demonstrates the karyotype. affinity among these three families, Liliaceae, Agavaceae and Palmae. These results accord with the Hutchinson's system in monocotyledons and contradict the Engler's system.View full abstractDownload PDF (725K) -
Takasi Tuyama1947 Volume 60 Issue 703-714 Pages 36-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (76K) -
Masahide KURITA1947 Volume 60 Issue 703-714 Pages 37-38
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSDownload PDF (201K) -
Yasuhiko Asahina1947 Volume 60 Issue 703-714 Pages 38-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (83K) -
Yositeru NAKAMURA1947 Volume 60 Issue 703-714 Pages 39-43
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESS1. We can find two forms in Porphyra variegata (Kjellman) Hus on the coast of Muroran, Hokkaido; one has a eosine-pink colour and the other a red-purple or crimson. Further, the former has usually a thinner frond than the latter.
2. These differences in colour and thickness of the frond are conspicuous even in the young plant of less than 1.5cm height, but no other distinctions between these two forms can be found. Moreover, the former is usually found in earlier season than the latter, for the one is found mainly from March to May and at least not in July or August, whereas the other is found from May to August. Consequently, these two forms appear to be ecological ones.
3. When the plant is still young, the frond is divided into similar halves by a longitudinal limiting line. One half gradually becomes yellow and soon begins to disintegrate from its margin and then falls off entirely at maturity. The other half has a deeper colour and grows more rapidly at the marginal part opposite to the longitudinal limiting line, especially after disintegration of the yellowish half, and recurves unilaterally, taking a large comma-shape.
4. The former yellowish part of the frond represents an antheridial area and the latter deeper coloured is sporocarpic. Consequently, this species is apparently monoecious, although it was described as dioecious by Kjellman in his original description and he was followed by Hus, Ueda and other authors.
5. One antheridium divides into 32 or 64 antherozoids, according to the formula, 32 (a/4, b/4, c/2) or 64 (a/4, b/4, c/4?).
6. One sporocarp contains 8 or 32 carpospores after Hus and 16 carpospores after Ueda. The writer agrees with Ueda′s observation and the formula of division corresponds to 16 (a/2, b/2, c/4).View full abstractDownload PDF (746K) -
Yuzi Tonomura, Masazi Honda1947 Volume 60 Issue 703-714 Pages 43-44
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (148K) -
Yosinori SUGIHARA1947 Volume 60 Issue 703-714 Pages 45-46
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSIn Cephalotaxus drupacea Siebold et Zuccarini, by a division of a boby cell, two male gametes are formed. They are two cells of unequal size. The nuclei of these two cells are about the same in their appearance, but the one of the small cell is slightly smaller than the other. The gametes have no membrane on their surface. These results does not agree with Lawson′s report on the same species.View full abstractDownload PDF (244K) -
Yosinori SUGIHARA1947 Volume 60 Issue 703-714 Pages 47-52
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSThe archegonia of Cryptomeria japonica D. Don are formed as a complex in an apical part of the female gametophyte. In the outside of the archegonial complex a layer of poorly differentiated jacket cells is found. In the inside of the complex the sterile tissue as is found in Cunninghamia is not formed. Two male gametes are formed by a division of a body cell. Both gametes formed in this way are equal in size and shape, In 1943, the fertilization took place in the end of June in Sendai. As a result of the division of a fertilized nucleus the proembryo of 16 cells is formed. The components of an embryo system are as follow : the open cells, the prosuspensor, the massive secondary suspensors and embryo propers. The separation of the prosuspensor cells in the early stages is not observed. On this point the writer′s observation does not agree with Buchholz′s result. The cleavage polyembryony always takes place. The rosette embryo is rarely formed by the division of the separated prosuspensor cells having no embryonic cell at their apex. The type of embryogeny in Cryptomeria is considered to be the same as those of Taiwania and Taxodium but totally differs from that of Cunninghamia.View full abstractDownload PDF (838K) -
Fumio Maekawa1947 Volume 60 Issue 703-714 Pages 52-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (79K) -
Yosinori SUGIHARA1947 Volume 60 Issue 703-714 Pages 53-57
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSThe male gametes and embryogeny of Cunninghamia Konishii Hayata is described. Two male gametes are formed immediately before the fertilization by a division of a body cell. Both gametes formed in this way are equal in size and shape. In 1940 the fertilization took place in the middle of July in Sin-Taiheizan, Formosa.
In general the proembryogeny of this species agrees with that of C. lanceolata Hooker. In the stage of the suspensor elongation the following components are found : the open cells, the prosuspensor, the primary suspensor, each of which is consisted of two cells running parallel, the cap cells and the embryo initial cells. (Perhaps the massive secondary suspensor will be formed later.) The cleavage polyembryony is clearly found. The embryogeny of two species in Cunninghamia (C. Konishii & C. lanceolata) differs totally from those of Cryptomeria, Taiwania and Taxodium.View full abstractDownload PDF (757K) -
Yosinori SUGIHARA1947 Volume 60 Issue 703-714 Pages 58-62
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSThe early embryogeny of Abies firma Siebold et Zuccarini is described. In 1942 the fertilization took place in early July in Sendai. The proembryo formed in the basal part of the archegonium is composed of sixteen cells which are arranged in four rows each consisting of four cells. In these tiers of the proembryo, the uppermost is the open cell, the second the rosette cell, the third the primary suspensor and the lowest the emrbyonic cell. After the elongation of the primary suspensor each cell of the embryonic tier divides independently to form a mass of embryonic cells.
In the next stage the elongation of the embryonal tube takes place in these masses of embryonic cells. In some cases (about 28%) the separation of the embryonic cell masses in their development takes place. In such cases the cleavage polyembryony is found later. The components of an embryo are the open cells, the rosette cells, the primary suspensor, the massive secondary suspensor and the embryo propers. In the early growing stage of the embryo the existence of the apical cell in each embryonic units is always found. On this point the writer′s result is opposed to the Buchholz′s opinion on the same genus. Slightly developed rosette embryos are also sometimes found.View full abstractDownload PDF (716K) -
Yone MATSUMOTO1947 Volume 60 Issue 703-714 Pages 63-70
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSIn this paper plant remains from two beds at Kobama in Amino, Kyoto Prefecture, namely those from the peat layer on the coast of Nippon-Sea (A) and from drainage channels of rice fields near Lake Hanareko (B), are enumerated.
Twenty-seven species belonging to 19 families were found in the bed A, and 13 species belonging to 8 families in the bed B. Among those from A, Fagus Hayatae Palib, is not found in wild state to-day in Japan, while the 3 species, Rosa akashiensis Miki, Nuphar akashiensis Miki and Fothergilla Matsumotoi Miki n. sp., are extinct. The last mentioned species, only two leaves of which have been found, has characteristic similar to Fothergilla alnifolia which grows on the east coast of North America, but differs from this in shape (Fig. 3C, Fig. 4E).
The age of the bed A is determined to be the lower Pleistocene, because it is situated unconfermable to the tuff bed of the Miocene, and the floral composition has intimate relation to the Paliurus bed which belongs to the lower Pleistocene. The bed B, on the other hand, is considered as the recent, because its floral composition is the same as at present, and tissue structures of the remains are not yet modified much.
The floral structure of the bed A has more or less xerophytic characters, namely abundance of Pinus Thunbergii and Buxus japonica, and presence of thorned plants as Gleditschia and Rosa, accompanied by some leaves of Torreya nucifera, The xerophytic nature of the bed may be attributed to its situation near the sea coast and on. extension of granite.View full abstractDownload PDF (973K) -
Isao HURUSAWA1947 Volume 60 Issue 703-714 Pages 71-76
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESS -
Kozo Hayashi, Kazuhiko Ouchi1947 Volume 60 Issue 703-714 Pages 76-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (77K) -
Hiroshi HARA1947 Volume 60 Issue 703-714 Pages 77-82
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSDownload PDF (826K) -
Yudzuru Ogura1947 Volume 60 Issue 703-714 Pages 82-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (81K) -
Kazuo OTI1947 Volume 60 Issue 703-714 Pages 83-86
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESS1) Merceyopsis sikokiana Sakurai sp. nov. (Fig 1)
Planta tenella, densissime caespitosa, caespitibus mollibus, late extensis, sordide viridibus. Caulis erectus, 3-4mm altus, infimus rhizoideus, plerumque ramosus vel innovationus, superne conferte, inferne sparse foliosus. Folia sicca crispata, madore erecto-patentia, longe spathulata, marginibus undulatulis saepe spiraliter contortis, obtusata, usque ad 1-1.5mm longa, costa distincta, infra apicem folii evanida; cellulis irregulariter rotundato-quadratis, valde chlorophyllosis, obscuris, papillosis, infra 1/3 pellucidis, levibus. Sterilis.
2) Leptodontium japonicum Sakurai sp. nov. (Fig 2)
Planta mediocris pro genere, caespitosa, caespitibus laxis, lutescenti-viridibus, Caulis repens vel decumbens, ca. 3-4cm longus, infimus parce radiculosus, simplex vel irregulariter ramosus. Folia sicca adpressa, madida distincte recurvata, e basi late ovato-lanceolata, subacuta, integra, usque ad 1.5mm longa, 0.5mm lata, basi biplicata; costa valida, carinata, continua, dorso mamillosula; cellulis irregulariter rotundato-quadratis, 1-3 mamillosis, basin versus quadrates, pellucidis. Caetera desunt.
3) Clastbryella Tunodae Broth. (in Musci novi japonici 1919-1920.)
Seta 1-1.2cm longa, tenui, inferne rubella, levis, recta. Capsula oblonga, erecta vel suberecta, 1.5mm longa, 0.3mm crassa. Operculum brevi-rostratum. Vaginula cylindrica, rhizoidea. Bractae perich. intimae longe lanceolato-acuminatae, superne serratae, costa bina relative distincta.
4) Brotherella aurea Sakurai sp. nov. (Fig 3)
Planta gracilis, caespitosa, caespitibus sat densis, in toto aureis, nitidis. Caulis prostratus, ca. 1.5cm longus, irregulariter pinnatus, pinnis caudiformiter attenuatis haud complanatis, conferte foliosis, cum foliis 1-1.2mm latis. Folia imbricata, e basi constricta ovato-lanceolata, concaviuscula, sensim acuminata, 1mm longa, 0.2mm lata, marginibus inferne anguste recurvis, supra medio grosse serrulatis. Enervia. Cellulis anguste linearibus, alaribus permagnis, vesiculosis, aureis, oblongis, basilaribus aureis. Seta 1.5cm alta, infima rubra, flexuosa. Capsula cylindrica, 2.2mm longa, suberecta. Bractae perichaetii intimae lanceolato-subulatae, superne remote argute serratae.
5) Brotherclla barbelloides Sak. (Bot. Mag. Tokyo 46 (545): 382).
var. viridis Sakurai var. nov.
Planta in toto viridis vel subviridis, non aurea.View full abstractDownload PDF (478K) -
Takinoshin Nakai1947 Volume 60 Issue 703-714 Pages 86-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (79K) -
Kyuichi SAKURAI1947 Volume 60 Issue 703-714 Pages 87-93
Published: 1947
Released on J-STAGE: June 18, 2007
JOURNAL FREE ACCESSDownload PDF (720K) -
1947 Volume 60 Issue 703-714 Pages 94-113
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (1885K) -
1947 Volume 60 Issue 703-714 Pages Cover_714-
Published: 1947
Released on J-STAGE: October 25, 2023
JOURNAL FREE ACCESSDownload PDF (155K)
- |<
- <
- 1
- >
- >|