Microbiology of the laetolil tuff 7 with 3.66 Ma australopithecus afarensis footprints, ngorongoro conservation area, Tanzania

Anatoly N. Zaitsev, Dmitry Yu. Vlasov, Marina S. Zelenskaya, Olga A. Zaitseva, Olga A. Pavlova, Anton R. Chakhmouradian, Anton I. Savchenok, Larissa Leach, Michael Leach, Joshua Mwankunda

Результат исследований: Публикации в книгах, отчётах, сборниках, трудах конференцийглава/разделнаучнаярецензирование

Выдержка

East Africa is one of the most important paleoanthropological localities on Earth. Laetoli and Olduvai Gorge (Tanzania) are among the world’s premier areas for Australopithecus afarensis, Paranthropus boisei, and Homo habilis remains. Laetoli is also unique in its preservation of footprint trails within Tuff 7 left by Australopithecus afarensis. Tuff 7 has been studied to characterize microorganisms living inside these tuffs and to estimate their potential involvement in destructive processes; 35 species of microfungi, as well as sterile white and dark mycelia were identified by cultural method. The results of the metagenomic analysis show that anamorphic ascomycetes are the predominant group in all samples. They occur as hyphae and mycelia inside the tuffs, and are concentrated in pores, microcracks and cavities. The number of micromycetes is moderate (up to 7000 CFU per gram of substrate). Typical cultivated microfungi are from genera Aspergillus and Fusarium. They are known as active destructors of natural and artificial substrates and can colonize building materials. Molecular genetic methods revealed a large group of different bacteria (23 phyla) within the tuff. The microbiota consists mostly of Actinobacteria, Proteobacteria, Bacteroidetes and Cyanobacteria. Their relative distribution shows the preferential occurrence of Bacteroidetes in the upper part of stratigraphic sections (soil), and concentration of Actinobacteria and Proteobacteria within the tuffs. Exposure of the Footprint tuff could lead to the development of photosynthetic microorganisms (Cyanobacteria). We conclude that microbiological activity within the study area appears to be moderate and the Footprint Tuff does not presently require any treatment with biocides. However, the presence of black biofilms on the surface of the Footprint conservation mound concrete shows that biodestruction does occur.

Язык оригиналаанглийский
Название основной публикацииProcesses and Phenomena on the Boundary Between Biogenic and Abiogenic Nature
Подзаголовок основной публикацииConference proceedings
РедакторыOlga V. Frank-Kamenetskaya, Dmitry Yu. Vlasov, Elena G. Panova, Sofia N. Lessovaia
Место публикацииCham
ИздательSpringer
Страницы669-692
ISBN (электронное издание)9783030216146
ISBN (печатное издание)9783030216139
DOI
СостояниеЭлектронная публикация перед печатью - 30 авг 2019
СобытиеVI International Symposium "Biogenic-abiogenic interactions in natural and anthropogenic systems" devoted to the 150th anniversary of the Saint Petersburg Naturalists Society - СПбГУ, Санкт-Петербург, Российская Федерация
Продолжительность: 24 сен 201827 сен 2018
Номер конференции: VI

Серия публикаций

НазваниеLecture Notes in Earth System Sciences
ISSN (печатное издание)2193-8571
ISSN (электронное издание)2193-858X

Конференция

КонференцияVI International Symposium "Biogenic-abiogenic interactions in natural and anthropogenic systems" devoted to the 150th anniversary of the Saint Petersburg Naturalists Society
СтранаРоссийская Федерация
ГородСанкт-Петербург
Период24/09/1827/09/18

Отпечаток

Microbiology
microbiology
tuff
footprint
Microorganisms
protected area
Conservation
Biocides
Aspergillus
Biofilms
Microcracks
Substrates
Bacteria
Earth (planet)
Concretes
cyanobacterium
Soils
microorganism
Olduvai event
artificial substrate

Предметные области Scopus

  • Компьютерные технологии в науках о земле
  • Планетоведение и науки о земле (все)

Цитировать

Zaitsev, A. N., Vlasov, D. Y., Zelenskaya, M. S., Zaitseva, O. A., Pavlova, O. A., Chakhmouradian, A. R., ... Mwankunda, J. (2020). Microbiology of the laetolil tuff 7 with 3.66 Ma australopithecus afarensis footprints, ngorongoro conservation area, Tanzania. В O. V. Frank-Kamenetskaya, D. Y. Vlasov, E. G. Panova, & S. N. Lessovaia (Ред.), Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature: Conference proceedings (стр. 669-692). (Lecture Notes in Earth System Sciences). Cham: Springer. https://doi.org/10.1007/978-3-030-21614-6_36
Zaitsev, Anatoly N. ; Vlasov, Dmitry Yu. ; Zelenskaya, Marina S. ; Zaitseva, Olga A. ; Pavlova, Olga A. ; Chakhmouradian, Anton R. ; Savchenok, Anton I. ; Leach, Larissa ; Leach, Michael ; Mwankunda, Joshua. / Microbiology of the laetolil tuff 7 with 3.66 Ma australopithecus afarensis footprints, ngorongoro conservation area, Tanzania. Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature: Conference proceedings. редактор / Olga V. Frank-Kamenetskaya ; Dmitry Yu. Vlasov ; Elena G. Panova ; Sofia N. Lessovaia. Cham : Springer, 2020. стр. 669-692 (Lecture Notes in Earth System Sciences).
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title = "Microbiology of the laetolil tuff 7 with 3.66 Ma australopithecus afarensis footprints, ngorongoro conservation area, Tanzania",
abstract = "East Africa is one of the most important paleoanthropological localities on Earth. Laetoli and Olduvai Gorge (Tanzania) are among the world’s premier areas for Australopithecus afarensis, Paranthropus boisei, and Homo habilis remains. Laetoli is also unique in its preservation of footprint trails within Tuff 7 left by Australopithecus afarensis. Tuff 7 has been studied to characterize microorganisms living inside these tuffs and to estimate their potential involvement in destructive processes; 35 species of microfungi, as well as sterile white and dark mycelia were identified by cultural method. The results of the metagenomic analysis show that anamorphic ascomycetes are the predominant group in all samples. They occur as hyphae and mycelia inside the tuffs, and are concentrated in pores, microcracks and cavities. The number of micromycetes is moderate (up to 7000 CFU per gram of substrate). Typical cultivated microfungi are from genera Aspergillus and Fusarium. They are known as active destructors of natural and artificial substrates and can colonize building materials. Molecular genetic methods revealed a large group of different bacteria (23 phyla) within the tuff. The microbiota consists mostly of Actinobacteria, Proteobacteria, Bacteroidetes and Cyanobacteria. Their relative distribution shows the preferential occurrence of Bacteroidetes in the upper part of stratigraphic sections (soil), and concentration of Actinobacteria and Proteobacteria within the tuffs. Exposure of the Footprint tuff could lead to the development of photosynthetic microorganisms (Cyanobacteria). We conclude that microbiological activity within the study area appears to be moderate and the Footprint Tuff does not presently require any treatment with biocides. However, the presence of black biofilms on the surface of the Footprint conservation mound concrete shows that biodestruction does occur.",
keywords = "Australopithecus afarensis, Bacteria, Footprint, Laetoli, Microfungi, Tanzania, Tuff",
author = "Zaitsev, {Anatoly N.} and Vlasov, {Dmitry Yu.} and Zelenskaya, {Marina S.} and Zaitseva, {Olga A.} and Pavlova, {Olga A.} and Chakhmouradian, {Anton R.} and Savchenok, {Anton I.} and Larissa Leach and Michael Leach and Joshua Mwankunda",
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language = "English",
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Zaitsev, AN, Vlasov, DY, Zelenskaya, MS, Zaitseva, OA, Pavlova, OA, Chakhmouradian, AR, Savchenok, AI, Leach, L, Leach, M & Mwankunda, J 2020, Microbiology of the laetolil tuff 7 with 3.66 Ma australopithecus afarensis footprints, ngorongoro conservation area, Tanzania. в OV Frank-Kamenetskaya, DY Vlasov, EG Panova & SN Lessovaia (ред.), Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature: Conference proceedings. Lecture Notes in Earth System Sciences, Springer, Cham, стр. 669-692, VI International Symposium "Biogenic-abiogenic interactions in natural and anthropogenic systems" devoted to the 150th anniversary of the Saint Petersburg Naturalists Society, Санкт-Петербург, Российская Федерация, 24/09/18. https://doi.org/10.1007/978-3-030-21614-6_36

Microbiology of the laetolil tuff 7 with 3.66 Ma australopithecus afarensis footprints, ngorongoro conservation area, Tanzania. / Zaitsev, Anatoly N.; Vlasov, Dmitry Yu.; Zelenskaya, Marina S.; Zaitseva, Olga A.; Pavlova, Olga A.; Chakhmouradian, Anton R.; Savchenok, Anton I.; Leach, Larissa; Leach, Michael; Mwankunda, Joshua.

Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature: Conference proceedings. ред. / Olga V. Frank-Kamenetskaya; Dmitry Yu. Vlasov; Elena G. Panova; Sofia N. Lessovaia. Cham : Springer, 2020. стр. 669-692 (Lecture Notes in Earth System Sciences).

Результат исследований: Публикации в книгах, отчётах, сборниках, трудах конференцийглава/разделнаучнаярецензирование

TY - CHAP

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AU - Zaitsev, Anatoly N.

AU - Vlasov, Dmitry Yu.

AU - Zelenskaya, Marina S.

AU - Zaitseva, Olga A.

AU - Pavlova, Olga A.

AU - Chakhmouradian, Anton R.

AU - Savchenok, Anton I.

AU - Leach, Larissa

AU - Leach, Michael

AU - Mwankunda, Joshua

PY - 2019/8/30

Y1 - 2019/8/30

N2 - East Africa is one of the most important paleoanthropological localities on Earth. Laetoli and Olduvai Gorge (Tanzania) are among the world’s premier areas for Australopithecus afarensis, Paranthropus boisei, and Homo habilis remains. Laetoli is also unique in its preservation of footprint trails within Tuff 7 left by Australopithecus afarensis. Tuff 7 has been studied to characterize microorganisms living inside these tuffs and to estimate their potential involvement in destructive processes; 35 species of microfungi, as well as sterile white and dark mycelia were identified by cultural method. The results of the metagenomic analysis show that anamorphic ascomycetes are the predominant group in all samples. They occur as hyphae and mycelia inside the tuffs, and are concentrated in pores, microcracks and cavities. The number of micromycetes is moderate (up to 7000 CFU per gram of substrate). Typical cultivated microfungi are from genera Aspergillus and Fusarium. They are known as active destructors of natural and artificial substrates and can colonize building materials. Molecular genetic methods revealed a large group of different bacteria (23 phyla) within the tuff. The microbiota consists mostly of Actinobacteria, Proteobacteria, Bacteroidetes and Cyanobacteria. Their relative distribution shows the preferential occurrence of Bacteroidetes in the upper part of stratigraphic sections (soil), and concentration of Actinobacteria and Proteobacteria within the tuffs. Exposure of the Footprint tuff could lead to the development of photosynthetic microorganisms (Cyanobacteria). We conclude that microbiological activity within the study area appears to be moderate and the Footprint Tuff does not presently require any treatment with biocides. However, the presence of black biofilms on the surface of the Footprint conservation mound concrete shows that biodestruction does occur.

AB - East Africa is one of the most important paleoanthropological localities on Earth. Laetoli and Olduvai Gorge (Tanzania) are among the world’s premier areas for Australopithecus afarensis, Paranthropus boisei, and Homo habilis remains. Laetoli is also unique in its preservation of footprint trails within Tuff 7 left by Australopithecus afarensis. Tuff 7 has been studied to characterize microorganisms living inside these tuffs and to estimate their potential involvement in destructive processes; 35 species of microfungi, as well as sterile white and dark mycelia were identified by cultural method. The results of the metagenomic analysis show that anamorphic ascomycetes are the predominant group in all samples. They occur as hyphae and mycelia inside the tuffs, and are concentrated in pores, microcracks and cavities. The number of micromycetes is moderate (up to 7000 CFU per gram of substrate). Typical cultivated microfungi are from genera Aspergillus and Fusarium. They are known as active destructors of natural and artificial substrates and can colonize building materials. Molecular genetic methods revealed a large group of different bacteria (23 phyla) within the tuff. The microbiota consists mostly of Actinobacteria, Proteobacteria, Bacteroidetes and Cyanobacteria. Their relative distribution shows the preferential occurrence of Bacteroidetes in the upper part of stratigraphic sections (soil), and concentration of Actinobacteria and Proteobacteria within the tuffs. Exposure of the Footprint tuff could lead to the development of photosynthetic microorganisms (Cyanobacteria). We conclude that microbiological activity within the study area appears to be moderate and the Footprint Tuff does not presently require any treatment with biocides. However, the presence of black biofilms on the surface of the Footprint conservation mound concrete shows that biodestruction does occur.

KW - Australopithecus afarensis

KW - Bacteria

KW - Footprint

KW - Laetoli

KW - Microfungi

KW - Tanzania

KW - Tuff

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Zaitsev AN, Vlasov DY, Zelenskaya MS, Zaitseva OA, Pavlova OA, Chakhmouradian AR и соавт. Microbiology of the laetolil tuff 7 with 3.66 Ma australopithecus afarensis footprints, ngorongoro conservation area, Tanzania. В Frank-Kamenetskaya OV, Vlasov DY, Panova EG, Lessovaia SN, редакторы, Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature: Conference proceedings. Cham: Springer. 2020. стр. 669-692. (Lecture Notes in Earth System Sciences). https://doi.org/10.1007/978-3-030-21614-6_36