New design for a clamp connection

1994 ◽  
Vol 30 (9) ◽  
pp. 439-440
Author(s):  
F. G. Lyalina ◽  
V. K. Sis'mekov ◽  
O. V. Rabinzon
Keyword(s):  
Clamp Connection

scholarly journals KARAKTERISTIK AKAR BEREKTOMIKORIZA PADA Shorea pinanga, Pinus merkusii DAN Gnetum gnemon

PERENNIAL ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 11
Author(s):  
Melya Riniarti ◽  
Irdika Mansur ◽  
Arum Sekar Wulandari ◽  
Cecep Kusmana
Keyword(s):  
Key Words ◽  
Ectomycorrhizal Fungi ◽  
Host Plants ◽  
Clamp Connection ◽  
The Other ◽  
Branching Pattern ◽  
Root Tips ◽  
Hartig Net ◽  
Gnetum Gnemon ◽  
Pinus Merkusii

Morphology and anatomy characteristics often used to identify ectomycorrhizal fungi. We used three Scleroderma spp. (Scleroderma columnare, S. dictyosporum), and S. sinnamariense) and inoculated to Shorea pinanga, Pinus merkusii, and Gnetum gnemon. After 6,8, and 10 months, each root tips were collected to determined hyphae colour, branching pattern, clamp-connection, hartig net and mantle. This result revealed that S. sinnamariense did not form association with S. pinanga and P. merkusii but form association with G. gnemon. On the other hand, S. columnare and S. dictyosporum could form association with all the host plants. S. columnare and S. dictyosporum formed white hyphae while S. sinnamariense formed yellow hyphae with monopodial branching pattern. The depth of hartig net and mantle was increased by timed. Key words: ectomycorrhizal fungi, hartig net, mantle, Scleroderma

THE OIDIA OF PSILOCYBE COPROPHILA AND THE PAIRING REACTIONS OF MONOSPOROUS MYCELIA

1935 ◽  
Vol 12 (5) ◽  
pp. 661-667 ◽  
Author(s):  
Harold J. Brodie
Keyword(s):  
Clamp Connection ◽  
Negative Evidence

By isolating thirty monosporous mycelia and pairing them, the agaric Psilocybe coprophila Fr. has been shown to be heterothallic and bipolar, confirming the report of Miss Kathryn Gilmore (1926). Contrary to the statement of Miss Gilmore, no oidia were found on the diploid mycelia although they are abundant on the haplophytes. The diplophytes are frequently "impure", hyphae devoid of clamp connections and are found intermingled with hyphae bearing clamp connections. The possibility of the clamp-connection-free hyphae being haploid and of the development of oidia on these haploid hyphae is suggested as an explanation of the statement of Miss Gilmore that oidia occur on the diplophyte of this fungus.No mutual repulsion between haploid mycelia was observed. This is negative evidence in support of the prediction of Vandendries and Brodie that their barrage phenomenon would not be found in bipolar but only in tetrapolar hymenomycetes.

Direct microscopic studies of clamp connection formation in growing hyphae of Schizophyllum commune

1971 ◽  
Vol 80 (1) ◽  
pp. 19-31 ◽  
Author(s):  
Donald J. Niederpruem ◽  
Ralph A. Jersild ◽  
Patsy L. Lane
Keyword(s):  
Schizophyllum Commune ◽  
Clamp Connection ◽  
Microscopic Studies

VII.—Nuclear Phenomena in Marasmius androsaceus (L. ex Fr.) Fr. and M. rotula (Scop. ex Fr.) Fr.

1965 ◽  
Vol 66 (7) ◽  
pp. 129-141 ◽  
Author(s):  
E. Julian Duncan ◽  
J. A. Macdonald
Keyword(s):  
Phase Contrast ◽  
Daughter Nucleus ◽  
Chromosome Complement ◽  
Clamp Connection ◽  
The Other ◽  
Diploid Nucleus ◽  
Late Prophase ◽  
Cellophane Film ◽  
End Products

SynopsisDividing and non-dividing nuclei in the hyphæ of M. androsaceus and M. rotula, grown by means of agar- and cellophane-film techniques, were examined alive with phase contrast and also after various fixation and staining procedures. The division was compared with that of the nuclei found in the ultimate clamp connection, i.e. that found, associated with the developing basidium, and with the divisions of the single diploid nucleus in the mature basidium. The end products of all the hyphal divisions are the same as in organisms having a conventional mitosis but some of the steps by which this is achieved are unusual, notably the arrangement of the chromatin as a figure of eight, the twisting of one of the loops so formed above the other to create two rings and the opening of these rings in such a way that the two rods which, ultimately separate each correspond with the chromosome complement of a daughter nucleus. The first division of the diploid nucleus in the basidium is noteworthy for the linking together, in late prophase, of the four chromosomes. This division is followed by a distinct interphase in which nucleoli reappear. The second division shares the peculiarities of the division in the ultimate clamp.

scholarly journals KOMPARASI MORFOLOGI BEBERAPA KOLONI JAMUR AKAR PUTIH (Rigidoporus microporus) DARI PERKEBUNAN KARET DI JAWA TENGAH DAN SUMATERA SELATAN

2018 ◽  
pp. 137-146
Author(s):  
Binerd Anthon Im Toy ◽  
Jerry F. Langkuin ◽  
Ferry F. Karwur ◽  
Budi Setyawan ◽  
Intan Berlian ◽  
...  
Keyword(s):  
Clamp Connection ◽  
Research Center

Rigidoporus microporus adalah jamur yang menyebabkan penyakit jamur akar putih (JAP) pada tanaman karet. Tingkat keparahan penyakit yang ditimbulkan oleh JAP berbeda antar wilayah. Penelitian ini bertujuan untuk mengetahui komparasi morfologi beberapa koloni jamur akar putih  dari perkebunan karet di Jawa Tengah dan Sumatera Selatan. Sampel dikoleksi langsung dari perkebunan Merbuh dan Blimbing di Jawa Tengah dan Balai Penelitian Karet Sembawa di Sumatera Selatan. Penelitian dilakukan pada bulan November 2016-April 2017 di Laboratorium Carotenoid Antioxidant Research Center (CARC)  Universitas Kristen Satya Wacana, Salatiga. Hasil yang diperoleh menunjukkan bahwa kecepatan pertumbuhan ke-17 isolat berdasar penambahan diameter koloni hingga mencapai tepi petri bervariasi yaitu 4 hari (MB8), 6 hari (MM6), 7 hari (MK2, MK3, SS1), 8 hari (MK1, MM5, MM7, SS2, SS3), 9 hari (BW1, SS5), 10 hari (MK4, BW4, SS4), 11 hari (BW2), dan 13 hari (BB3). Morfologi koloni dan hifa JAP baik dari Jawa Tengah maupun Sumatera Selatan hampir sama, yakni koloni berbentuk bulat, filamentous, elevasi ada yang rata (flat) dan ada yang sedikit timbul (raised), serta berwarna putih hingga putih gading. Hifa JAP memiliki septa, hialin, bercabang, dan tidak ada clamp connection.

scholarly journals Experiments on the physiology and genetics the smut fungi.—Hyphal-fusion

1927 ◽  
Vol 101 (708) ◽  
pp. 126-136 ◽  
Keyword(s):  
Environmental Conditions ◽  
Linear Order ◽  
Clamp Connection ◽  
The Other ◽  
Smut Fungi ◽  
Hyphal Fusion

In recent years attention has been devoted to the study of the Smut Fungi, and their cytology is now fairly well known. The results of previous observations on the two Smuts used in the following experiments may be briefly summarised:—The Chlamydospore in both species is uni-nucleate, and on germination a promycelium is formed into which the nucleus passes. There it divides into two, and the two daughter nuclei pass, one to each end of the promycelium, and there divide, so forming four nuclei between which cross walls are then formed (see text-fig. 1, A-E, p. 130). After this stage the behaviour is governed largely by the environmental conditions, either one or more sporidia are budded off from each segment or clamp connections are formed between pairs of segments. (Text-fig. 1, F-G.) No linear order is apparent in these unions, all possible combinations having been observed; and the nucleus and cytoplasm of one segment passes into the other through the clamp connection. Again, no crossing or changing over in position of the nuclei in the unsegmented promycelium has been seen. It has been presumed therefore that the nuclei in the segments, if numbered from the apex, 1, 2, 3, 4, are in pairs, 1 and 2 being the product of one nucleus, 3 and 4 the product of the other. This has been corroborated in the present work.

Direct microscopic studies of clamp connection formation in growing hyphae of Schizophyllum commune

1971 ◽  
Vol 78 (3) ◽  
pp. 268-280 ◽  
Author(s):  
Donald J. Niederpruem ◽  
Ralph A. Jersild ◽  
Patsy L. Lane
Keyword(s):  
Schizophyllum Commune ◽  
Clamp Connection ◽  
Microscopic Studies

Nuclear and Non-nuclear Factors influencing Clamp Connection Formation in Coprinus disseminatus

1972 ◽  
Vol 36 (2) ◽  
pp. 263-279 ◽  
Author(s):  
GILLIAN M. BUTLER
Keyword(s):  
Clamp Connection ◽  
Factors Influencing ◽  
Nuclear Factors
Sign in / Sign up

Export Citation Format

Share Document