Related Experiment Video
Updated: Jun 4, 2026

Simulating Temperature in a Soil Incubation Experiment
Published on: October 28, 2022
Harpagoside variation is positively correlated with temperature in Scrophularia ningpoensis Hemsl
Shuting Yang1, Jinghui Li, Yunpeng Zhao
1The Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education, College of Life Sciences, Zhejiang University , Hangzhou 310058, People's Republic of China.
Abstract:
Scrophularia ningpoensis Hemsl. is an important Chinese medicinal herb with a history of domestication of over 1000 years. Phytochemical variation of S. ningpoensis in response to environmental gradients remains an attractive topic with both practiceal and theoretical significances. In the current study, HPLC fingerprinting and four major bioactive compounds of S. ningpoensis, that is, harpagoside, angroside C, acteoside, and cinnamic acid, were determined to explore its correlations with climatic, geographic, and soil factors. The present data confirmed the approximate three-group pattern of phytochemical differentiation among the five production regions, the population of Zhejiang (ZJ), the population of Hubei (HB), and the rest three populations of Chongqing, Hunan, and Shaanxi (CQ, HN, and SX). Harpagoside, the dominant bioactive compound of S. ningpoensis, contributed most to the phytochemical differentiation and displayed a significant positive correlation with monthly and annual average temperature and negative correlations with altitude and latitude. It was concluded that harpagoside variation was strongly positively correlated with environmental changes of temperature.
Related Concept Videos
Responses to Heat and Cold Stress
Factors Influencing Microbial Growth: Temperature
What is Natural Selection?
Factors Affecting Body Temperature
Factors may include:
Background and Environment Affect Phenotype
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
Atomic Spectroscopy: Effects of Temperature
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature from...

