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- Title
Nitric oxide production in Malus hupehensis roots under waterlogging and the effects of exogenous NaNO3 on this production.
- Authors
Sui Jing; Yang Hong-qiang; Zhang Xin-rong; Jiang Qian-qian; Ran Kun; Sun Xiao-li; Li Qiang
- Abstract
Taking two-year old Malus hupehensis as test material, this paper studied its root nitric oxide (NO) production under waterlogging, and the effects of exogenous NaNO3 on this production. Waterlogging for 3-9 days promoted the NO production significantly. Within the 12 days of water-logging, the NO production, nitrite reductase (NR) and nitric oxide synthase (NOS) activities, and malondialchehyche (MDA) content in roots increased first, and decreased subsequently. Under waterlogging, the application of 10 mmol NaNO3 ∙L-1 inhibited the increase of MDA content and NOS activity while improved the NR activity significantly. After applying NaNO3, the root NO production increased in the first three days, but decreased significantly after the 6th day.
- Subjects
APPLES; NITRIC oxide; PLANT root morphology; PLANT root physiology; WATERLOGGING (Soils); EFFECT of gases on plants; NITRITES; NITROGEN compounds &; the environment; EFFECT of nitrogen on plants
- Publication
Yingyong Shengtai Xuebao, 2010, Vol 21, Issue 6, p1395
- ISSN
1001-9332
- Publication type
Article