NDLI: Reactive oxygen species production and antioxidative defense in pea (Pisum sativum L.) root nodules after short-term aluminum treatment

Content Provider	Springer Nature Link
Author	Sujkowska Rybkowska, Marzena
Copyright Year	2012
Abstract	Pea plants (Pisum sativum L.) were treated with 50 μM aluminum chloride at pH 4.5 for 2 or 24 h at room temperature. Following treatment, root nodule Al uptake, the generation of reactive oxygen species (ROS, O 2 −· and H$_{2}$O$_{2}$), and the activities of the antioxidant enzymes catalase (CAT), superoxide dismutase (SOD) and peroxidase (POX) were investigated. Aluminum accumulation was found chiefly in the apoplast of the nodule cortex, endodermis and meristem, while the formation of peroxide was detected in the nodule cortex, infection threads and bacteroidal tissue. Further, there were increased levels of superoxide in the meristem and bacteroidal tissue. The activity of SOD (EC 1.15.1.1) and POX (EC 1.11.1.7) increased in the Al-treated nodules and the roots of pea plants, whereas CAT (EC 1.11.1.6) activity decreased. The Al absorbed by the nodules induced ROS production. The POX and SOD are important ROS-scavengers in Al-stressed nodules.
Starting Page	1387
Ending Page	1400
Page Count	14
File Format	PDF
ISSN	01375881
Journal	Acta Physiologiae Plantarum
Volume Number	34
Issue Number	4
e-ISSN	18611664
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-02-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aluminum stress Antioxidant enzymes Morin Reactive oxygen species Root nodule Plant Physiology Plant Anatomy/Development Agriculture Plant Genetics & Genomics Plant Pathology Plant Biochemistry
Content Type	Text
Resource Type	Article
Subject	Physiology Plant Science Agronomy and Crop Science

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