NDLI: Lysigenous aerenchyma formation in maize root is confined to cortical cells by regulation of genes related to generation and scavenging of reactive oxygen species

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Lysigenous aerenchyma formation in maize root is confined to cortical cells by regulation of genes related to generation and scavenging of reactive oxygen species

Content Provider	Scilit
Author	Yamauchi, Takaki Rajhi, Imene Nakazono, Mikio
Copyright Year	2011
Description	To adapt to waterlogging, maize (Zea mays) forms lysigenous aerenchyma in root cortex as a result of ethylene-promoted programmed cell death (PCD). Respiratory burst oxidase homolog (RBOH) gene encodes a homolog of gp91 (phox) in NADPH oxidase, and has a role in the generation of reactive oxygen species (ROS). Recently, we found that, during aerenchyma formation, RBOH was up-regulated in all maize root tissues examined, whereas an ROS scavenging-related metallothionein (MT) gene was down-regulated specifically in cortical cells. Together, these changes should lead to high accumulations of ROS in root cortex, thereby inducing PCD for aerenchyma formation. As further evidence of the involvement of ROS in root aerenchyma formation, the PCD was inhibited by diphenyleneiodonium (DPI), an NADPH oxidase inhibitor. Based on these results, we propose a model of cortical cell-specific PCD for root aerenchyma formation.
Related Links	https://www.tandfonline.com/doi/pdf/10.4161/psb.6.5.15417?needAccess=true https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3172858/pdf https://www.landesbioscience.com/journals/psb/YamauchiPSB6-5.pdf
Ending Page	761
Page Count	3
Starting Page	759
e-ISSN	15592324
DOI	10.4161/psb.6.5.15417
Journal	Plant signaling & behavior
Issue Number	5
Volume Number	6
Language	English
Publisher	Informa UK Limited
Publisher Date	2011-05-01
Access Restriction	Open
Subject Keyword	Journal: Plant Signaling & Behavior Plant Sciences Aerenchyma Ethylene Laser Microdissection Maize (zea Mays) Metallothionein Programmed Cell Death Reactive Oxygen Species Respiratory Burst Oxidase Homolog
Content Type	Text
Resource Type	Article

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