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Nitrogenase Activity in the Lichen Stereocaulon paschale : Recovery after Dry Storage
Author(s) -
HUSSDANELL KERSTIN
Publication year - 1977
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1977.tb05550.x
Subject(s) - nitrogenase , thallus , lichen , chemistry , incubation , botany , environmental chemistry , biology , biochemistry , nitrogen fixation , nitrogen , organic chemistry
The effect of prolonged storage on nitrogenase activity in Stereocaulon paschale (L.) Fr. was studied. The thalli had a very low water content during the storage over silica gel at 4°C in the dark. For C 2 H 2 ‐reduction measurements the lichen samples were remoistened and held at 15°C in the light for 1–36 h before the addition of C 2 H 2 . With the longest pre‐incubation time preceding the nitrogenase activity measurements there was no significant decrease in nitrogenase activity during 75 weeks of storage. The method of storage was simple and inexpensive and the nitrogenase activity characteristic of each lichen batch, due to seasonal variation, was well preserved during the storage.