Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Artificial Reestablishment of Lichens. II. Secondary Products of Resynthesized Cladonia cristatella and Lecanora chrysoleuca

Chicita F. Culberson and V. Ahmadjian
Mycologia
Vol. 72, No. 1 (Jan. - Feb., 1980), pp. 90-109
DOI: 10.2307/3759422
Stable URL: http://www.jstor.org/stable/3759422
Page Count: 20
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Artificial Reestablishment of Lichens. II. Secondary Products of Resynthesized Cladonia cristatella and Lecanora chrysoleuca
Preview not available

Abstract

Successful resyntheses of the Cladonia cristatella mycobiont with its normal phycobiont and with Trebouxia isolates from 12 other species of lichens all produced the characteristic depside barbatic acid as the major secondary product. Many also produced the dibenzofuran didymic acid, but none yielded detectable amounts of the cortical pigment usnic acid. No characteristic lichen products were found in cultures of the C. cristatella mycobiont either alone, under a variety of cultural conditions, or mixed with Pseudotrebouxia phycobionts under the same conditions that led to successful resyntheses with Trebouxia phycobionts. Well-developed soredia from successful resyntheses of the Lecanora chrysoleuca mycobiont with Pseudotrebouxia phycobionts showed traces of usnic acid. The production of characteristic lichen products is affected primarily by the establishment of a successful symbiosis and secondarily by as yet poorly defined environmental factors. The formation of many characteristic lichen products may involve algal inhibition of fungal enzymes.

Page Thumbnails

  • Thumbnail: Page 
90
    90
  • Thumbnail: Page 
91
    91
  • Thumbnail: Page 
92
    92
  • Thumbnail: Page 
93
    93
  • Thumbnail: Page 
94
    94
  • Thumbnail: Page 
95
    95
  • Thumbnail: Page 
96
    96
  • Thumbnail: Page 
97
    97
  • Thumbnail: Page 
98
    98
  • Thumbnail: Page 
99
    99
  • Thumbnail: Page 
100
    100
  • Thumbnail: Page 
101
    101
  • Thumbnail: Page 
102
    102
  • Thumbnail: Page 
103
    103
  • Thumbnail: Page 
104
    104
  • Thumbnail: Page 
105
    105
  • Thumbnail: Page 
106
    106
  • Thumbnail: Page 
107
    107
  • Thumbnail: Page 
108
    108
  • Thumbnail: Page 
109
    109