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- Title
苯甲酸对花生根边缘细包发生的影响.
- Authors
张永平; 乔永旭
- Abstract
The effects of benzoic acid on peanut seed germination rate, root length, the number, the activity and the mucilage layer thickness of the root border cells ( BCs ) were investigated. The results showed thаt, low concentration of benzoic acid led to a slight increase of seed germination rate and root length while high concentration of benzoic acid resulted to a decrease. In the meanwhile, the higher the concentration of benzoic acid is, the more obvious the inhibition effect is. The primal BCs occurred nearly synchronously with primary root tip growth in peanut. The BCs number reached maximum when root length extended to 20 - 25 mm. The BCs viability reached maximum when root length extended to 15 - 20 mm. The BCs number in vitro roots were gradually increased and the BCs activities dropped while benzoic acid concentration increased. Both the number and activities of the BCs were gradually increased, while treatment time extended, until they reached their maximum. At the same time, the mucilage thickness increased with elevation of benzoic acid concentration. In general, BCs could secrete mucilage and self-decompose under benzoic acid treatment, which might protect root tip from being hurt in some degree.
- Subjects
BENZOIC acid; PEANUT research; GERMINATION; MUCILAGE; SEEDS
- Publication
Southwest China Journal of Agricultural Sciences, 2014, Vol 27, Issue 5, p1884
- ISSN
1001-4829
- Publication type
Article