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- W2364493355 abstract "Conchocelis of Porphyra he katadai var hemiphylla from indoor culture and wild carpospores from leaf y thalli collected on the Zhanshan region, Qingdao seashore in March 1995 and kept on - 20℃ for about fifteen months, were used and their conchospore maturing and releasing condihons, size, growth and development of conchosporelings were seded in order to identify the life history of P. ha tadai var. hemiphylla. The results show tha conchocelis from indoor culture was more difficult to form and release conchospores than that from wild carpospores. Sporangial branhlets were formed in large quanhty at 30-31℃, releasing conchospores at lot. Average diameter of conchospores was (11.3 ±1.3)μm. The lengths of conchosporelings increased with temperabe at 10-22℃. A temperature of 15-22℃ were optimal for sporeling normal growth. The shapes of sporelings were not related to the temperature. Conchosporelings shed monospores at 15-20℃. Conchocelis from wild carpospores formed sporangial branhlcts in laree quantity at 26-28℃ and released conchospores at 14℃. Average diameter of conchospores was (13.1±1.3)μm. Conchosporelings grew quickly at 10℃ and their shapes were not related to the temperabe significantly. Conchosporelings from two sources grew nonnally at lower temperabe and no monospore was shed. For the morphogenesis of conchosporelings, conchospores from indoor culture germinated into sporelings with no more than 10 cells being lined along the gendnation direction. Certain cells on the position of apex or ndddie were divided longitudinally to form two lines. Conchospores from wild carpospores gendnated into tWo cells in the direction of germination. Afterwards, there were two modes for the sequential cell division. one is the apical cell which was clivided longitudinally to form two new cells, which occupied about 50% of the total division modes. The two newly produced cells were hather divided to form the two halves of an adult thallus. The other mode was that after the first division, the division direchon did not change unhl a cedrin cell divided longitudinally to form a mulh-lined thallus when the cell number of a conchosporeling was about lo. In conclusion, there exist stalns in Porphyra is tadai var. hemiphylla, Porphylla to Katadai var.hemiphylla has the ability to produce monospores in certain conditions." @default.
- W2364493355 created "2016-06-24" @default.
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- W2364493355 date "1999-01-01" @default.
- W2364493355 modified "2023-09-23" @default.
- W2364493355 title "ARTIFICIAL CULTURE FROM CONCHOCELIS TO CONCHOSPORELINGS OF PORPHYRA KATADAI VAR. HEMIPHYLLA" @default.
- W2364493355 hasPublicationYear "1999" @default.
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