NDLI: The impacts of exogenous H2O2 on primary root horizontal bending of pea (Pisum sativum L.)

Content Provider	Springer Nature Link
Author	Li, Sheng Su, Lirong Ma, Shaoying Shi, Zhenzhen Zhang, Zhen Liu, Huijie Zhang, Jinlin Yang, Xiaoming Sun, Zhengwei
Copyright Year	2015
Abstract	Root gravitropism makes plant roots maintain a definite growth toward gravity direction. In this study, the garden pea seeds were used to investigate the impacts of exogenous hydrogen peroxide on the primary root horizontal bending. The results showed that exogenous H2O2 inhibited primary root gravitropism and induced horizontal bending at the initial stage of the pea seed germination, and the curvature was more severe with the increase of H2O2 concentration. The horizontal bending emerged before the radicale broke through the seed coat, after which the bending could not appear, and the earlier H2O2 treated, the more obvious the effect showed. In accordance with cytohistological observations, an asymmetrical cell-elongation generated at the elongation zones of the bending root, in which the outer layer cells was remarkably wider than the inner layer cells. Besides, it was only found in Papilionoideae that the primary root horizontal bending was induced by exogenous H2O2. As the H2O2 concentrations raised, the content of gibberellin A3 (GA3) increased, which stimulated the activity of α-amylase (EC3.2.1.1) and promoted the hydrolysis of root starch, so the root-cap parts were dyed much lighter with the raising concentrations of H2O2. Finally, the root tip lost gravisensing and horizontally bended.
Starting Page	287
Ending Page	296
Page Count	10
File Format	PDF
ISSN	01676903
Journal	Plant Growth Regulation
Volume Number	78
Issue Number	3
e-ISSN	15735087
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-06-17
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gravitropism H2O2 Horizontal bending Pisum sativum L. root Plant Sciences Plant Anatomy/Development Plant Physiology Agriculture
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Fluoranthene influences endogenous abscisic acid level and primary photosynthetic processes in pea (Pisum sativum L.) plants in vitro

The effects of sodium chloride-salinity upon growth, nodulation, and root nodule structure of pea (Pisum sativum L.) plants

Protective role of mucilage against Al toxicity to root apex of pea (Pisum sativum)

Polysome formation and stability in pea stem and root tissue

Sorbitol accumulation during natural and accelerated ageing of pea (Pisum sativum L.) seeds

Cytokinin profiling of long-term in vitro pea (Pisum sativum L.) shoot cultures

Evaluating cadmium toxicity in the root meristem of Pisum sativum L.

Localization of acid phosphatase activity in the apoplast of pea (Pisum sativum L.) root nodules grown under phosphorus deficiency

Gibberellin Metabolism and Transport During Germination and Young Seedling Growth of Pea (Pisum sativum L.)

The impacts of exogenous H2O2 on primary root horizontal bending of pea (Pisum sativum L.)

Similar Documents

Fluoranthene influences endogenous abscisic acid level and primary photosynthetic processes in pea (Pisum sativum L.) plants in vitro

The effects of sodium chloride-salinity upon growth, nodulation, and root nodule structure of pea (Pisum sativum L.) plants

Protective role of mucilage against Al toxicity to root apex of pea (Pisum sativum)

Polysome formation and stability in pea stem and root tissue

Sorbitol accumulation during natural and accelerated ageing of pea (Pisum sativum L.) seeds

Cytokinin profiling of long-term in vitro pea (Pisum sativum L.) shoot cultures

Evaluating cadmium toxicity in the root meristem of Pisum sativum L.

Localization of acid phosphatase activity in the apoplast of pea (Pisum sativum L.) root nodules grown under phosphorus deficiency

Gibberellin Metabolism and Transport During Germination and Young Seedling Growth of Pea (Pisum sativum L.)

The impacts of exogenous H2O2 on primary root horizontal bending of pea (Pisum sativum L.)