Temperature variability is integrated by a spatially embedded decision-making center to break dormancy in Arabidopsis seeds
نویسندگان
چکیده
منابع مشابه
Temperature variability is integrated by a spatially embedded decision-making center to break dormancy in Arabidopsis seeds.
Plants perceive and integrate information from the environment to time critical transitions in their life cycle. Some mechanisms underlying this quantitative signal processing have been described, whereas others await discovery. Seeds have evolved a mechanism to integrate environmental information by regulating the abundance of the antagonistically acting hormones abscisic acid (ABA) and gibber...
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Background. The dynamic and uncertain nature of health care environment requires nurses to be competent decision makers and to respond to the clients needs. Recently, the public and the government have criticized Iranian nurses because of a low quality patient care. However, the nurses’ views and experiences concern- ing the factors affecting their clinical practice and clinical decision making...
متن کاملA proposed mechanism for physical dormancy break in seeds of Ipomoea lacunosa (Convolvulaceae).
BACKGROUND AND AIMS The water-impermeable seeds of Ipomoea lacunosa undergo sensitivity cycling to dormancy breaking treatment, and slits are formed around bulges adjacent to the micropyle during dormancy break, i.e. the water gap opens. The primary aim of this research was to identify the mechanism of slit formation in seeds of this species. METHODS Sensitive seeds were incubated at various ...
متن کاملNOTA PRÉVIA Dormancy break in seeds of “ quina ” ( Strychnos pseudoquina A . St . - Hil
“Quina” (Strychnos pseudoquina A. St. Hil) is a medicinal plant species from the Brazilian Cerrado. As its seeds show dormancy, they were subjected to the treatments precooling at 5oC during 7 days, pre-heating at 40oC during 7 days, pre-soaking in sulfuric acid PA during 5 and 15 min, pre-soaking in boiling water during 5 and 15 min, pre-soaking in 100 and 200 ppm gibberellic acid during 48 h,...
متن کاملThe time required for dormancy release in Arabidopsis is determined by DELAY OF GERMINATION1 protein levels in freshly harvested seeds.
Seed dormancy controls the start of a plant's life cycle by preventing germination of a viable seed in an unfavorable season. Freshly harvested seeds usually show a high level of dormancy, which is gradually released during dry storage (after-ripening). Abscisic acid (ABA) has been identified as an essential factor for the induction of dormancy, whereas gibberellins (GAs) are required for germi...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2017
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1704745114