Abolition of the tapetum suicide program ruins microsporogenesis

Takahiro Kawanabe; Tohru Ariizumi; Maki Kawai-Yamada; Hirofumi Uchimiya; Kinya Toriyama

doi:10.1093/pcp/pcj039

Abolition of the tapetum suicide program ruins microsporogenesis

Takahiro Kawanabe, Tohru Ariizumi, Maki Kawai-Yamada, Hirofumi Uchimiya, Kinya Toriyama

AGR - Agricultural Bioscience

Research output: Contribution to journal › Article › peer-review

119 Citations (Scopus)

Abstract

Microsporogenesis in angiosperms takes places within the anther. Microspores are surrounded by a layer of cells, the tapetum, which degenerates during the later stages of pollen development with cytological features characteristic of programmed cell death (PCD). We report herein that the expression of AtBI-1, which suppresses Bax-induced cell death, in the tapetum at the tetrad stage inhibits tapetum degeneration and subsequently results in pollen abortion, while activation of AtBI-1 at the later stage does not. Our results demonstrate that the PCD signal commences at the tetrad stage and that the proper timing of PCD in the tapetum is essential for normal microsporogenesis. JSPP

Original language	English
Pages (from-to)	784-787
Number of pages	4
Journal	Plant and Cell Physiology
Volume	47
Issue number	6
DOIs	https://doi.org/10.1093/pcp/pcj039
Publication status	Published - 2006 Jun

Keywords

Arabidopsis thaliana
Microsporogenesis
Pollen development
Programmed cell death
Tapetum

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1093/pcp/pcj039

Cite this

@article{b00561aa7ee74b25834f642626b69e36,

title = "Abolition of the tapetum suicide program ruins microsporogenesis",

abstract = "Microsporogenesis in angiosperms takes places within the anther. Microspores are surrounded by a layer of cells, the tapetum, which degenerates during the later stages of pollen development with cytological features characteristic of programmed cell death (PCD). We report herein that the expression of AtBI-1, which suppresses Bax-induced cell death, in the tapetum at the tetrad stage inhibits tapetum degeneration and subsequently results in pollen abortion, while activation of AtBI-1 at the later stage does not. Our results demonstrate that the PCD signal commences at the tetrad stage and that the proper timing of PCD in the tapetum is essential for normal microsporogenesis. JSPP",

keywords = "Arabidopsis thaliana, Microsporogenesis, Pollen development, Programmed cell death, Tapetum",

author = "Takahiro Kawanabe and Tohru Ariizumi and Maki Kawai-Yamada and Hirofumi Uchimiya and Kinya Toriyama",

note = "Funding Information: This research was supported by a Research for the Future grant and a Grant-in-Aid from the Japan Society for the Promotion of Science.",

year = "2006",

month = jun,

doi = "10.1093/pcp/pcj039",

language = "English",

volume = "47",

pages = "784--787",

journal = "Plant and Cell Physiology",

issn = "0032-0781",

publisher = "Oxford University Press",

number = "6",

}

TY - JOUR

T1 - Abolition of the tapetum suicide program ruins microsporogenesis

AU - Kawanabe, Takahiro

AU - Ariizumi, Tohru

AU - Kawai-Yamada, Maki

AU - Uchimiya, Hirofumi

AU - Toriyama, Kinya

N1 - Funding Information: This research was supported by a Research for the Future grant and a Grant-in-Aid from the Japan Society for the Promotion of Science.

PY - 2006/6

Y1 - 2006/6

N2 - Microsporogenesis in angiosperms takes places within the anther. Microspores are surrounded by a layer of cells, the tapetum, which degenerates during the later stages of pollen development with cytological features characteristic of programmed cell death (PCD). We report herein that the expression of AtBI-1, which suppresses Bax-induced cell death, in the tapetum at the tetrad stage inhibits tapetum degeneration and subsequently results in pollen abortion, while activation of AtBI-1 at the later stage does not. Our results demonstrate that the PCD signal commences at the tetrad stage and that the proper timing of PCD in the tapetum is essential for normal microsporogenesis. JSPP

AB - Microsporogenesis in angiosperms takes places within the anther. Microspores are surrounded by a layer of cells, the tapetum, which degenerates during the later stages of pollen development with cytological features characteristic of programmed cell death (PCD). We report herein that the expression of AtBI-1, which suppresses Bax-induced cell death, in the tapetum at the tetrad stage inhibits tapetum degeneration and subsequently results in pollen abortion, while activation of AtBI-1 at the later stage does not. Our results demonstrate that the PCD signal commences at the tetrad stage and that the proper timing of PCD in the tapetum is essential for normal microsporogenesis. JSPP

KW - Arabidopsis thaliana

KW - Microsporogenesis

KW - Pollen development

KW - Programmed cell death

KW - Tapetum

UR - http://www.scopus.com/inward/record.url?scp=33745408122&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33745408122&partnerID=8YFLogxK

U2 - 10.1093/pcp/pcj039

DO - 10.1093/pcp/pcj039

M3 - Article

C2 - 16565524

AN - SCOPUS:33745408122

SN - 0032-0781

VL - 47

SP - 784

EP - 787

JO - Plant and Cell Physiology

JF - Plant and Cell Physiology

IS - 6

ER -

Abolition of the tapetum suicide program ruins microsporogenesis

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this