J 2023

RUVBL proteins are involved in plant gametophyte development

DVOŘÁK TOMAŠTÍKOVÁ, Eva, Fen YANG, Kristína MLYNÁROVÁ, Said HAFIDH, Šárka SCHOŘOVÁ et. al.

Basic information

Original name

RUVBL proteins are involved in plant gametophyte development

Authors

DVOŘÁK TOMAŠTÍKOVÁ, Eva, Fen YANG, Kristína MLYNÁROVÁ (703 Slovakia, belonging to the institution), Said HAFIDH, Šárka SCHOŘOVÁ (203 Czech Republic, belonging to the institution), Alžbeta KUSOVÁ (703 Slovakia, belonging to the institution), Markéta PERNISOVÁ (203 Czech Republic, belonging to the institution), Tereza PŘEROVSKÁ (203 Czech Republic, belonging to the institution), Božena KLODOVÁ, David HONYS, Jiří FAJKUS (203 Czech Republic, belonging to the institution), Ales PECINKA and Petra PROCHÁZKOVÁ SCHRUMPFOVÁ (203 Czech Republic, guarantor, belonging to the institution)

Edition

Plant Journal, Wiley, 2023, 0960-7412

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10611 Plant sciences, botany

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 7.200 in 2022

RIV identification code

RIV/00216224:14310/23:00132782

Organization unit

Faculty of Science

UT WoS

000940668400001

Keywords in English

DNA-protein crosslinks; Arabidopsis; male gametophyte; female gametophytes; pollen development; transcription; RUVBL proteins

Tags

International impact, Reviewed
Změněno: 9/10/2024 13:42, Mgr. Adéla Pešková

Abstract

V originále

The proper development of male and female gametophytes is critical for successful sexual reproduction and requires a carefully regulated series of events orchestrated by a suite of various proteins. RUVBL1 and RUVBL2, plant orthologues of human Pontin and Reptin, respectively, belong to the evolutionarily highly conserved AAA(+) family linked to a wide range of cellular processes. Previously, we found that RUVBL1 and RUVBL2A mutations are homozygous lethal in Arabidopsis. Here, we report that RUVBL1 and RUVBL2A play roles in reproductive development. We show that mutant plants produce embryo sacs with an abnormal structure or with various numbers of nuclei. Although pollen grains of heterozygous mutant plants exhibit reduced viability and reduced pollen tube growth in vitro, some of the ruvbl pollen tubes are capable of targeting ovules in vivo. Similarly, some ruvbl ovules retain the ability to attract wild-type pollen tubes but fail to develop further. The activity of the RUVBL1 and RUVBL2A promoters was observed in the embryo sac, pollen grains, and tapetum cells and, for RUVBL2A, also in developing ovules. In summary, we show that the RUVBL proteins are essential for the proper development of both male and particularly female gametophytes in Arabidopsis.

Links

GA21-15841S, research and development project
Name: Genová exprese v samčí zárodečné linii: regulační faktory a jejich responsivní elementy. (Acronym: Regulace gen. exprese v pylu.)
Investor: Czech Science Foundation
GX20-01331X, research and development project
Name: Biogeneze a evoluce telomerázy u rostlin
Investor: Czech Science Foundation
90129, large research infrastructures
Name: Czech-BioImaging II