Skip to main content
ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Sugarbeet and Potato Research » Research » Publications at this Location » Publication #351340

Research Project: Improving Potato Nutritional and Market Quality by Identifying and Manipulating Physiological and Molecular Processes Controlling Tuber Wound-Healing and Sprout Growth

Location: Sugarbeet and Potato Research

Title: Wound induces changes in nitric oxide related biologies putatively modulating tuber healing

item Lulai, Edward

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/19/2018
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Wound-related losses in harvested potatoes and cut seed are a serious and costly problem (losses > $320 m/yr). Our understanding of the regulation and modulation of the processes involved in wound healing (WH) are advancing and showing promise in the development of new approaches and technologies to enhance wound-induced suberization and other WH processes. Investigations involving wound-induce polyamine metabolism led to research on closely related biologies involving nitric oxide (NO) modulation of wound healing. NO has been shown to enhance WH in a range of plant tissues, but little is known about the effect of NO or NO-related biology on potato tuber. Quantitation of wound-induced changes in nitric oxide production may be implied by changes in nitric oxide synthase (NOS) and related influences on tuber wound healing. While NO production is difficult to quantitate, NOS activity may be readily assayed. Our results show that wounding induces changes in NOS activity during closing layer development, a time where NO may be the most influential. These and other results which may provide insight into meaningful ways of modulating tuber WH and the development of technologies to enhance WH and reduce wound-related losses will be presented.