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Effects of Ethylene on Seed Germination of Halophyte Plants Under Salt Stress. 2017

Weiqiang Li, and Lam-Son Phan Tran
Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, #E610 6F East Research Bldg, 1-7-22, Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan.

Halophyte plant species are those that can finish their life cycle in the presence of 50% or more seawater concentration. Ethylene, as a natural plant hormone produced at later stages of seed germination, plays an important role in regulating seed germination. However, its regulatory role in seed dormancy and germination of halophyte plants under salt stress is still not well understood. In this chapter, we describe methods used for applications of two ethylene donors, ethephon and 1-aminocyclopropane-1-carboxylic acid, in studies aimed at examining the effects of ethylene on seed germination of a representative halophyte plant Suaeda salsa under high salinity. Similar approaches can be applied to the study of ethylene and salt interactions in other plant species, when taking into account that salt sensitivities may differ.

UI MeSH Term Description Entries
D010937 Plant Growth Regulators Any of the hormones produced naturally in plants and active in controlling growth and other functions. There are three primary classes: auxins, cytokinins, and gibberellins. Phytohormone,Phytohormones,Plant Growth Regulator,Plant Hormone,Plant Hormones,Growth Regulators, Plant,Regulators, Plant Growth,Growth Regulator, Plant,Hormone, Plant,Hormones, Plant,Regulator, Plant Growth
D005030 Ethylenes Derivatives of ethylene, a simple organic gas of biological origin with many industrial and biological use.
D000598 Amino Acids, Cyclic A class of amino acids characterized by a closed ring structure. Cyclic Amino Acids,Acids, Cyclic Amino
D012639 Seeds The encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high content of concentrated nutrients like starches, proteins, and fats. Rapeseed, cottonseed, and sunflower seed are also produced for the oils (fats) they yield. Diaspores,Elaiosomes,Embryos, Plant,Plant Embryos,Plant Zygotes,Zygotes, Plant,Diaspore,Elaiosome,Embryo, Plant,Plant Embryo,Plant Zygote,Seed,Zygote, Plant
D013312 Stress, Physiological The unfavorable effect of environmental factors (stressors) on the physiological functions of an organism. Prolonged unresolved physiological stress can affect HOMEOSTASIS of the organism, and may lead to damaging or pathological conditions. Biotic Stress,Metabolic Stress,Physiological Stress,Abiotic Stress,Abiotic Stress Reaction,Abiotic Stress Response,Biological Stress,Metabolic Stress Response,Physiological Stress Reaction,Physiological Stress Reactivity,Physiological Stress Response,Abiotic Stress Reactions,Abiotic Stress Responses,Abiotic Stresses,Biological Stresses,Biotic Stresses,Metabolic Stress Responses,Metabolic Stresses,Physiological Stress Reactions,Physiological Stress Responses,Physiological Stresses,Reaction, Abiotic Stress,Reactions, Abiotic Stress,Response, Abiotic Stress,Response, Metabolic Stress,Stress Reaction, Physiological,Stress Response, Metabolic,Stress Response, Physiological,Stress, Abiotic,Stress, Biological,Stress, Biotic,Stress, Metabolic
D054712 Salinity Degree of saltiness, which is largely the OSMOLAR CONCENTRATION of SODIUM CHLORIDE plus any other SALTS present. It is an ecological factor of considerable importance, influencing the types of organisms that live in an ENVIRONMENT.
D055051 Salt-Tolerant Plants Plants that can grow well in soils that have a high SALINITY. Halophytes,Plants, Salt-Tolerant,Halophilic Plants,Halophytic Plants,Saline-Resistant Plants,Saline-Tolerant Plants,Salt-Adapted Plants,Salt-Resistant Plants,Halophilic Plant,Halophyte,Halophytic Plant,Plant, Halophilic,Plant, Halophytic,Plant, Saline-Resistant,Plant, Saline-Tolerant,Plant, Salt-Adapted,Plant, Salt-Resistant,Plant, Salt-Tolerant,Plants, Halophilic,Plants, Halophytic,Plants, Saline-Resistant,Plants, Saline-Tolerant,Plants, Salt Tolerant,Plants, Salt-Adapted,Plants, Salt-Resistant,Saline Resistant Plants,Saline Tolerant Plants,Saline-Resistant Plant,Saline-Tolerant Plant,Salt Adapted Plants,Salt Resistant Plants,Salt Tolerant Plants,Salt-Adapted Plant,Salt-Resistant Plant,Salt-Tolerant Plant
D018525 Germination The initial stages of the growth of SEEDS into a SEEDLINGS. The embryonic shoot (plumule) and embryonic PLANT ROOTS (radicle) emerge and grow upwards and downwards respectively. Food reserves for germination come from endosperm tissue within the seed and/or from the seed leaves (COTYLEDON). (Concise Dictionary of Biology, 1990) Germinations

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