Graduate Thesis Or Dissertation
 

Environmental influences on monoterpenes and phenolics of Mentha piperita

Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/3t945t76d

Descriptions

Attribute NameValues
Creator
Abstract
  • Vegetatively propagated peppermint (Mentha piperita L., cv. Black Mitcham) was used to determine the effects of night temperatures (8°C vs 25°C) on the plant growth in terms of fresh weight and leaf area, and on metabolite contents. The plants were sampled after 14 days, 21 days and 28 days in the controlled environments. Warm-night plants grew faster than cool-night plants, seen in larger leaf area and greater fresh weight on whole plant or leaf basis. Cool night (8 ° C) favored anthocyanin synthesis and accumulation. Warm night (25 C) resulted in very low levels of anthocyanin pigment. Monoterpene content and composition were also influenced by the night temperatures. Warm-night plants produced more essential oil than cool-night plants at all three sampling dates, approximately in proportion to the additional growth. However, the cool-night plants had higher percentages of reduced forms of monoterpenes such as menthone and menthol, and lower percentages of the oxidized monoterpenes pulegone and menthofuran. Although warm-night plants showed higher total measured amounts of starch and sugars, the specific contents per unit area tended to be lower than in cool-night plants. Leaf expansion growth apparently utilized substrates that otherwise might have been used in secondary product synthesis or retained as reserves.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Committee Member
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details YaoChengC1985.pdf 2017-08-10 Public Download