Study of Primary Metabolism of Plants

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Farming Sustainability".

Deadline for manuscript submissions: closed (20 September 2022) | Viewed by 2605

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Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 121, 16500 Prague, Czech Republic
Interests: plant physiology; plant stress physiology
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Special Issue Information

Dear Colleagues,

Securing resources for the human population depends on the state of agriculture and its ability to stably produce enough food. Given the enormous burden the environment should be a preference for activities necessary for sustainable security and a dignified existence people. In addition to fertility resources and tillage technologies, there is a need to develop crop varieties with high yield potential that are also adaptable to stressors. The aim of breeding should be to obtain tolerant or resistant varieties with high harvest index (HI).

 The harvest index is related to changes in photosynthesis, which is affected not only by environmental conditions, but also by breeding, although so far the breeding activity has not completely improved the stand’s photosynthetic efficiency. In this respect, there is room for improving the performance of photosynthesis in relation to, for example, increasing CO2 concentrations. Another way to increase HI is to influence the transport of assimilates and the plant’s ability to utilize them. This Special Issue will focus on the "Study of Primary Metabolism of Plants". We welcome new research, reviews, and opinions on all related topics, including biochemistry, plant anatomy, breeding, genetics and crop improvement, phenotyping, changes in primary plant metabolism due to stressors, modeling, yield generation, assimilation, metabolism, and proteomics.

Dr. František Hnilička
Guest Editor

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Keywords

  • photosynthesis
  • cereals
  • sink
  • source
  • transport of assimilates
  • photosynthetic apparatus of plants

Published Papers (1 paper)

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Research

25 pages, 7470 KiB  
Article
Metabonomic Profiling Analyses Reveal ANS Upregulation to Enhance the Flavonoid Pathway of Purple-Fleshed Sweet Potato Storage Root in Response to Deep Shading
by Ying He, Dan Zhu, Yujun Sun, Qian Wang, Lan Zhu and Hanlai Zeng
Agronomy 2021, 11(4), 737; https://0-doi-org.brum.beds.ac.uk/10.3390/agronomy11040737 - 10 Apr 2021
Cited by 8 | Viewed by 2069
Abstract
Intercropping, as a common worldwide cultivation pattern, provides opportunities for sustainable agriculture with fuller use of light, temperature and land resources and greater yield per unit of land. The intercropping impact on crop quality is a current focus. This study found that shading [...] Read more.
Intercropping, as a common worldwide cultivation pattern, provides opportunities for sustainable agriculture with fuller use of light, temperature and land resources and greater yield per unit of land. The intercropping impact on crop quality is a current focus. This study found that shading cultivation of purple-fleshed sweet potato can improve the storage root pigment accumulation by more than 20% to increase economic benefits. We performed gas chromatography and mass spectrometry analysis of storage roots of the anthocyanin-enriched cultivar Jihei-1 under 60% shading and nonshaded treatments. A total of 224 differential metabolites were identified, among which N-acetyl-5-hydroxytryptamine, 1-monopalmitin, 4-pyridoxic acid, dodecano, arbutin, tryptophan, citrulline and phenylalanine were significantly upregulated under shading with a more than 10-fold change. Furthermore, metabolic pathway enrichment maps were based on the biological processes and stratification level selected. These metabolites mainly influenced the pathways of phenylpropanoid biosynthesis, the citrate cycle, organic acid biosynthesis and metabolism and amino acid metabolism. Through tissue-specific dynamic changes in amino acids, soluble sugars, starch and anthocyanins during storage root development, we proposed a variety-specific strategy of purple-fleshed sweet potato in response to prolonged deep shading, that is, utilizing and enhancing broad aboveground-tissue photosynthesis and transferring photosynthates into roots in advance, leading to a rapid increase in storage root anthocyanin synthesis. With comprehensive qPCR, western blot and enzyme activity analyses, we identified three key enzymes, CHS, ANS and 3GT, in purple-fleshed sweet potato storage roots in response to shading, which affect the root anthocyanin content by influencing the flavonoid metabolism pathway. This study provides a theoretical basis for revealing the regulation of anthocyanin synthesis in crops and a guidance for high-quality sweet potato cultivation and nutritional improvement using shade facilities. Full article
(This article belongs to the Special Issue Study of Primary Metabolism of Plants)
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