ملخص البحث :
ABSTRACT : A total of 300 samples were collected from manuscripts preserved in the Al-Hussein Holy shrine. Fungal species
were isolated and identified by both traditional and molecular methods. The results showed that seven fungal species are the
first record in Iraq as a general and in the manuscripts: Alternaria atra, Aspergillus ustus, Cladosporium exasperatum,
Chaetomium globosum, Microdochium nivale, Penicillium tardochrysogenum-1, Penicillium tardochrysogenum-2. The fungal
were registratied in the International Genbank and have accession numbers: MK503427, MK503428, MK504425, MK504424,
MK503439, MK504426, MK504427, respectively. The phylogenetic tree of ITS rRNA sequences showed that theAlternariaatra
strain alaa1-A. isolate from multiple sequence alignment of 18S rDNA gene sequences were identical to the international
isolates ex: Qatar, Iranetc, so Aspergillus ustus is identical 100% to the international isolates Egypt, Brazil, China, USA and
Netherlands. Cladosporium exasperatum is identical 100% to the international isolates India and Kenia. Microdochium
nivale, it was identical with the international isolates such as China isolates. Penicillium tardochrysogenum-1, Penicillium
tardochrysogenum-2 are identical 100% to the international isolates Slovakia, China, South Africa, India and Spain.
TheAspergillus ustus had ranked first in terms of occurrence, frequency and distribution density coefficient. Chaetomium
globosum strain ala11-C.gl from multiple sequence alignment of 18S rDNA gene sequences and identical to the international
isolates ex: China and Egypt, while Cladosporium exasperatum was in the last rank in terms of occurrence, frequency and
distribution intensity. The degradation of cellulose, protein, starch and fat because of the activity of fungi on the manuscripts
were detected for the purpose of identifying the effects of fungi and their damage to manuscripts. The results of the enzymatic
tests of the seven fungal fungi, that the Alternaria atra and Aspergillus ustus recorded a higher efficacy of the cellulose enzyme
in terms of the mean halo zone diameter of 47.44 and 47.00 mm respectively, which did not differ significantly between them.
The Microdochium nivale was more effectiveon protease activity, the halo zone was 63.78 mm and did not differ significantly
from both Aspergillus ustus and Chaetomium globosum, so the amylase showed high efficacy of the Microdochium nivale, with
a diameter of halo zone was 60.22 mm, which was not significantly different from the Aspergillus ustus with an average diameter
of 59.33 mm. Chaetomium globosum was the highest effective enzyme Lipase which dimeter halo zone was 68.56 mm, which
was not significantly different from the Microdochium nivale at 63.22 mm. The enzymes activity is considered as a good
response to confirms the contamination and the need to address for the purpose of conservation and preservation of the legacy
of civilization.
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سنة النشر : 2019
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تصنيف البحث : scopus
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