Analysis on variation patterns of Parmotrema tinctorum individuals under different environments.
PAKISTAN JOURNAL OF BOTANY(2018)
Abstract
Twelve Parmotrema tinctorum individuals were collected from the Yaoluoping national nature reserve of Anhui Province, China. The relationships between biological characters of lichen individuals and their environmental factors were analyzed by methods included Redundancy analysis (RDA). Based on the information, variation patterns of different individual's biological characters were described. The analysis results manifested that the biological characters showed a certain extent stability in a individual, but exhibit more variation among all twelve individuals, of which the hyphae diameter and anatomical character, had minimum variation coefficients not only within a individual, but also between all the analyzed lichen individuals. Redundancy analysis showed that environment factor moisture had a significant negative correlation with illumination, had the most-positive correlation and the most-negative correlation with hyphae diameter and biological index medulla width, respectively; While environment factor altitude had the most-negative correlation with lower cortex width and the most-positive correlation with rhizoid density. The atranorine content could response to illumination condition sensitively; whereas the algae layer thickness could reflect comprehensive environment change very well. The nutriment investment strategy within different function parts of a lichen thallus deserve to investigate deeply, which is of great importance in revealing the response model of lichens to environment change.
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Key words
Parmotrema tinctorum,Characters,Environment factors,Individuals,Redundancy analysis individual
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