What Do We Know About the Genetic Basis of Seed Desiccation Tolerance and Longevity?

Long-term seed storage is important for protecting both economic interests and biodiversity. The extraordinary properties of seeds allow us to store them in the right conditions for years. However, not all types of seeds are resilient, and some do not tolerate extreme desiccation or low temperature....

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Bibliographic Details
Published in:International journal of molecular sciences 2020-05, Vol.21 (10), p.3612
Main Authors: Kijak, Hanna, Ratajczak, Ewelina
Format: Article
Language:English
Subjects:
Biodiversity
Cytochrome
Cytoplasm
Dehydrogenases
Desiccation
Environmental protection
Enzymes
Gene expression
Gene Expression Regulation, Plant
Genes
Longevity
Low temperature
Magnoliopsida - genetics
Magnoliopsida - physiology
Metabolism
Moisture content
Plant Proteins - genetics
Plant Proteins - metabolism
Proteins
Respiration
Review
Seeds
Seeds - genetics
Seeds - physiology
Stress, Physiological
Sucrose
Temperature requirements
Water content
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Summary:Long-term seed storage is important for protecting both economic interests and biodiversity. The extraordinary properties of seeds allow us to store them in the right conditions for years. However, not all types of seeds are resilient, and some do not tolerate extreme desiccation or low temperature. Seeds can be divided into three categories: (1) orthodox seeds, which tolerate water losses of up to 7% of their water content and can be stored at low temperature; (2) recalcitrant seeds, which require a humidity of 27%; and (3) intermediate seeds, which lose their viability relatively quickly compared to orthodox seeds. In this article, we discuss the genetic bases for desiccation tolerance and longevity in seeds and the differences in gene expression profiles between the mentioned types of seeds.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms21103612