Analysis of surface structures of Cladonia mitis podetia in historic and recent collections from Greenland

Henning Heide-Jørgensen; Ib Johnsen

doi:10.1139/b95-046

Analysis of surface structures of Cladonia mitis podetia in historic and recent collections from Greenland

Henning Heide-Jørgensen, Ib Johnsen

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

7 Citationer (Scopus)

Abstract

Udgivelsesdato: March 1995

Originalsprog	Engelsk
Tidsskrift	Canadian Journal of Botany
Vol/bind	73
Udgave nummer	3
Sider (fra-til)	457-464
ISSN	0008-4026
DOI	https://doi.org/10.1139/b95-046
Status	Udgivet - 1995

Adgang til dokumentet

10.1139/b95-046

Citationsformater

@article{342ec68074cd11dbbee902004c4f4f50,

title = "Analysis of surface structures of Cladonia mitis podetia in historic and recent collections from Greenland",

abstract = "Field observations in Greenland combined with a scanning electron microscopical survey have revealed a hitherto undescribed correspondence in the distribution of a brownish colour and a crust-like surface structure formed by hyphae at exposed parts of the shoot tips of podetia of Cladonia mitis. A different brownish colour pattern is caused by fungal parasites. A comparable but less prominent colour-crust syndrome was observed on C. mitis from Denmark. The colour-crust syndrome is considered an unhealthy and damaged condition, and the light microscope reveals that areas with this syndrome mainly consist of the uncovered stereome devoid of the hyphal zone containing algal colonies. In a comparative study of podetia collected up to 105 years ago in Greenland, crust-like surface structures occur more frequently since the 1970s.",

author = "Henning Heide-J{\o}rgensen and Ib Johnsen",

year = "1995",

doi = "10.1139/b95-046",

language = "English",

volume = "73",

pages = "457--464",

journal = "Botany",

issn = "1916-2790",

publisher = "N R C Research Press",

number = "3",

}

TY - JOUR

T1 - Analysis of surface structures of Cladonia mitis podetia in historic and recent collections from Greenland

AU - Heide-Jørgensen, Henning

AU - Johnsen, Ib

PY - 1995

Y1 - 1995

N2 - Field observations in Greenland combined with a scanning electron microscopical survey have revealed a hitherto undescribed correspondence in the distribution of a brownish colour and a crust-like surface structure formed by hyphae at exposed parts of the shoot tips of podetia of Cladonia mitis. A different brownish colour pattern is caused by fungal parasites. A comparable but less prominent colour-crust syndrome was observed on C. mitis from Denmark. The colour-crust syndrome is considered an unhealthy and damaged condition, and the light microscope reveals that areas with this syndrome mainly consist of the uncovered stereome devoid of the hyphal zone containing algal colonies. In a comparative study of podetia collected up to 105 years ago in Greenland, crust-like surface structures occur more frequently since the 1970s.

AB - Field observations in Greenland combined with a scanning electron microscopical survey have revealed a hitherto undescribed correspondence in the distribution of a brownish colour and a crust-like surface structure formed by hyphae at exposed parts of the shoot tips of podetia of Cladonia mitis. A different brownish colour pattern is caused by fungal parasites. A comparable but less prominent colour-crust syndrome was observed on C. mitis from Denmark. The colour-crust syndrome is considered an unhealthy and damaged condition, and the light microscope reveals that areas with this syndrome mainly consist of the uncovered stereome devoid of the hyphal zone containing algal colonies. In a comparative study of podetia collected up to 105 years ago in Greenland, crust-like surface structures occur more frequently since the 1970s.

U2 - 10.1139/b95-046

DO - 10.1139/b95-046

M3 - Journal article

VL - 73

SP - 457

EP - 464

JO - Botany

JF - Botany

SN - 1916-2790

IS - 3

ER -