NDLI: Heat shock protein 70 regulates the abscisic acid-induced antioxidant response of maize to combined drought and heat stress

Content Provider	Springer Nature Link
Author	Hu, Xiuli Liu, Ruixia Li, Yanhui Wang, Wei Tai, Fuju Xue, Ruili Li, Chaohai
Copyright Year	2009
Abstract	We investigated the interaction between heat shock protein 70 (HSP70) and abscisic acid (ABA)-induced antioxidant response of maize to the combination of drought and heat stress. First, the increased activities of enzymes, including superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR) and catalase (CAT), induced by drought were less than those by heat or combined drought and heat stress, except some individual cases (e.g. CAT in leaves, GR in roots). Second, both HSP70 synthesis and H2O2 production increased prominently under drought, heat or their combination stress; the increase in leaves induced by drought and heat combination was the highest, followed by heat and by drought, while the increase in roots had not visible difference. Third, either in leaves or roots, pretreatment with ABA inhibitor, HSP70 inhibitor and H2O2 scavenger, significantly arrested the stress-induced increase of antioxidant enzyme activities, and ABA inhibitor and H2O2 scavenger obviously suppressed HSP70 synthesis, while HSP70 inhibitor slightly heightened H2O2 accumulation. Finally, 100 μM ABA significantly enhanced the activities of antioxidant enzymes, HSP70 expression and H2O2 production under stresses in comparison with ABA-deficient mutant vp5 maize plants without pretreatment. Thus, ABA-induced H2O2 production enhances the HSP70 synthesis and up-regulates the activities of antioxidant enzymes, resulting in the suppression of cellular reactive oxygen species (ROS) levels. Our results suggest that HSP70 may play a crucial role in ABA-induced antioxidant defense of maize to drought and heat combination.
Starting Page	225
Ending Page	235
Page Count	11
File Format	PDF
ISSN	01676903
Journal	Plant Growth Regulation
Volume Number	60
Issue Number	3
e-ISSN	15735087
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-12-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Abscisic acid Antioxidant enzymes Combined drought and heat stress H2O2 Heat shock protein 70 Zea mays L. Agriculture Plant Physiology Plant Anatomy/Development Plant Sciences
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

Characterization of Small Heat Shock Proteins Associated with Maize Tolerance to Combined Drought and Heat Stress

Cross-talks between Ca2+/CaM and H2O2 in abscisic acid-induced antioxidant defense in leaves of maize plants exposed to water stress

ABA application to maize hybrids contrasting for drought tolerance: changes in water parameters and in antioxidant enzyme activity

Differential expression of proteins in maize roots in response to abscisic acid and drought

Impact of soil compaction stress combined with drought or waterlogging on physiological and biochemical markers in two maize hybrids

Identification of proteins regulated by ABA in response to combined drought and heat stress in maize roots

Dual Application of 24-Epibrassinolide and Spermine Confers Drought Stress Tolerance in Maize (Zea mays L.) by Modulating Polyamine and Protein Metabolism

Effect of salicylic and abscisic acid administered through detached tillers on antioxidant system in developing wheat grains under heat stress

Salicylic acid pretreatment induces drought tolerance and delays leaf rolling by inducing antioxidant systems in maize genotypes

Heat shock protein 70 regulates the abscisic acid-induced antioxidant response of maize to combined drought and heat stress

Similar Documents

Characterization of Small Heat Shock Proteins Associated with Maize Tolerance to Combined Drought and Heat Stress

Cross-talks between Ca2+/CaM and H2O2 in abscisic acid-induced antioxidant defense in leaves of maize plants exposed to water stress

ABA application to maize hybrids contrasting for drought tolerance: changes in water parameters and in antioxidant enzyme activity

Differential expression of proteins in maize roots in response to abscisic acid and drought

Impact of soil compaction stress combined with drought or waterlogging on physiological and biochemical markers in two maize hybrids

Identification of proteins regulated by ABA in response to combined drought and heat stress in maize roots

Dual Application of 24-Epibrassinolide and Spermine Confers Drought Stress Tolerance in Maize (Zea mays L.) by Modulating Polyamine and Protein Metabolism

Effect of salicylic and abscisic acid administered through detached tillers on antioxidant system in developing wheat grains under heat stress

Salicylic acid pretreatment induces drought tolerance and delays leaf rolling by inducing antioxidant systems in maize genotypes

Heat shock protein 70 regulates the abscisic acid-induced antioxidant response of maize to combined drought and heat stress