J 2019

Telomeres in Plants and Humans: Not So Different, Not So Similar

PROCHÁZKOVÁ SCHRUMPFOVÁ, Petra, Miloslava FOJTOVÁ and Jiří FAJKUS

Basic information

Original name

Telomeres in Plants and Humans: Not So Different, Not So Similar

Authors

PROCHÁZKOVÁ SCHRUMPFOVÁ, Petra (203 Czech Republic, belonging to the institution), Miloslava FOJTOVÁ (203 Czech Republic, belonging to the institution) and Jiří FAJKUS (203 Czech Republic, guarantor, belonging to the institution)

Edition

Cells, 2019, 2073-4409

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10611 Plant sciences, botany

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 4.366

RIV identification code

RIV/00216224:14740/19:00107670

Organization unit

Central European Institute of Technology

UT WoS

000459742400058

Keywords in English

telomere; telomerase; human; Arabidopsis; aging; chromatin; epigenetics.

Tags

Tags

International impact, Reviewed
Změněno: 9/6/2022 11:32, Mgr. Pavla Foltynová, Ph.D.

Abstract

V originále

Abstract: Parallel research on multiple model organisms shows that while some principles of telomere biology are conserved among all eukaryotic kingdoms, we also find some deviations that reflect different evolutionary paths and life strategies, which may have diversified after the establishment of telomerase as a primary mechanism for telomere maintenance. Much more than animals, plants have to cope with environmental stressors, including genotoxic factors, due to their sessile lifestyle. This is, in principle, made possible by an increased capacity and efficiency of the molecular systems ensuring maintenance of genome stability, as well as a higher tolerance to genome instability. Furthermore, plant ontogenesis differs from that of animals in which tissue differentiation and telomerase silencing occur during early embryonic development, and the “telomere clock” in somatic cells may act as a preventive measure against carcinogenesis. This does not happen in plants, where growth and ontogenesis occur through the serial division of apical meristems consisting of a small group of stem cells that generate a linear series of cells, which differentiate into an array of cell types that make a shoot and root. Flowers, as generative plant organs, initiate from the shoot apical meristem in mature plants which is incompatible with the human-like developmental telomere shortening. In this review, we discuss differences between human and plant telomere biology and the implications for aging, genome stability, and cell and organism survival. In particular, we provide a comprehensive comparative overview of telomere proteins acting in humans and in Arabidopsis thaliana model plant, and discuss distinct epigenetic features of telomeric chromatin in these species.

Links

GA16-01137S, research and development project
Name: Faktory genomové stability u mechu a vyšších rostlin
Investor: Czech Science Foundation
GA17-09644S, research and development project
Name: Molekulární podstata evolučních přeměn telomer u rostlin řádu Asparagales
Investor: Czech Science Foundation
LQ1601, research and development project
Name: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR
LTC17077, research and development project
Name: Telomerový chromatin v rostlinách ovlivněných epigeneticky účinnými látkami
Investor: Ministry of Education, Youth and Sports of the CR, Telomeric chromatin in plants influenced by epigenetic drugs, INTER-COST