J 2020

Elimination of Viroids from Tobacco Pollen Involves a Decrease in Propagation Rate and an Increase of the Degradation Processes

MATOUSEK, J., L. STEINBACHOVA, L.Z. DRABKOVA, T. KOCABEK, David POTĚŠIL et. al.

Základní údaje

Originální název

Elimination of Viroids from Tobacco Pollen Involves a Decrease in Propagation Rate and an Increase of the Degradation Processes

Autoři

MATOUSEK, J., L. STEINBACHOVA, L.Z. DRABKOVA, T. KOCABEK, David POTĚŠIL (203 Česká republika, garant, domácí), A.K. MISHRA, D. HONYS a G. STEGER

Vydání

International Journal of Molecular Sciences, Basel, Multidisciplinary Digital Publishing Institute, 2020, 1422-0067

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10608 Biochemistry and molecular biology

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 5.923

Kód RIV

RIV/00216224:14740/20:00118307

Organizační jednotka

Středoevropský technologický institut

UT WoS

000535565300371

Klíčová slova anglicky

AFCVd and CBCVd propagation and eradication; viroid replication; viroid degradation; Nicotiana tabacum; male gametophyte; small RNA; recombinant AGO; TUDOR S-nuclease; strand-specific viroid RT-qPCR

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 10. 10. 2024 14:03, Ing. Martina Blahová

Anotace

V originále

Some viroids-single-stranded, non-coding, circular RNA parasites of plants-are not transmissible through pollen to seeds and to next generation. We analyzed the cause for the elimination of apple fruit crinkle viroid (AFCVd) and citrus bark cracking viroid (CBCVd) from male gametophyte cells of Nicotiana tabacum by RNA deep sequencing and molecular methods using infected and transformed tobacco pollen tissues at different developmental stages. AFCVd was not transferable from pollen to seeds in reciprocal pollinations, due to a complete viroid eradication during the last steps of pollen development and fertilization. In pollen, the viroid replication pathway proceeds with detectable replication intermediates, but is dramatically depressed in comparison to leaves. Specific and unspecific viroid degradation with some preference for (-) chains occurred in pollen, as detected by analysis of viroid-derived small RNAs, by quantification of viroid levels and by detection of viroid degradation products forming "comets" on Northern blots. The decrease of viroid levels during pollen development correlated with mRNA accumulation of several RNA-degrading factors, such as AGO5 nuclease, DICER-like and TUDOR S-like nuclease. In addition, the functional status of pollen, as a tissue with high ribosome content, could play a role during suppression of AFCVd replication involving transcription factors IIIA and ribosomal protein L5.

Návaznosti

LM2018127, projekt VaV
Název: Česká infrastruktura pro integrativní strukturní biologii (Akronym: CIISB)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Czech Infrastructure for Integrative Structural Biology
LM2018140, projekt VaV
Název: e-Infrastruktura CZ (Akronym: e-INFRA CZ)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, e-Infrastruktura CZ
90127, velká výzkumná infrastruktura
Název: CIISB II