Differences in the physiological responses of Rht13 and rht wheat lines to short-term osmotic stress

2020 ◽  
Vol 48 (1) ◽  
pp. 41-47 ◽  
Author(s):  
J. Yan ◽  
N. Zhang ◽  
X. Wang ◽  
S. Zhang
Keyword(s):  
Osmotic Stress ◽  
Physiological Responses ◽  
Short Term ◽  
Wheat Lines

scholarly journals In vitro Osmotic Stress Memory in Chrisanthemum hybridum: Structural and Physiological Responses

2017 ◽  
Vol 27 (2) ◽  
pp. 161-169 ◽  
Author(s):  
Lidiia Samarina ◽  
Valentina Malyarovskaya ◽  
Yulija Abilfazova ◽  
Natalia Platonova ◽  
Kristina Klemeshova ◽  
...  
Keyword(s):  
Osmotic Stress ◽  
Relative Water Content ◽  
Soluble Protein ◽  
Growth Parameters ◽  
Physiological Responses ◽  
Proline Content ◽  
Stress Exposure ◽  
Stress Memory ◽  
Relative Water

Structural and physiological responses of chrysanthemum to repeated osmotic stress were studied. Plants were cultured for 2 weeks (for each stress1 and stress 2) on half MS supplemented with mannitol 100 mM (Treatment I) and 200 mM (Treatment II). First stress inhibited growth parameters stronger than second stress in treatment I. In treatment II both stress events strongly inhibited growth parameters of micro‐shoots. Proline content exceeded control 6 ‐ 8 times after 1st stress, and 2 ‐ 5 times after the 2nd stress in treatments I and II, respectively. Soluble protein was accumulated in leaves during both stress exposures, and 2 ‐ 2.5 times exceeded control after the 2nd stress. Relative water content in both treatments increased after the 2nd stress exposure. In treatment II chlorophyll а and carotenoids contents were 8.78 and 4.62 mg/g comparing to control (4.21 and 2.25 mg/g, respectively) after the 1st stress. But after the 2nd stress there was no difference with control.Plant Tissue Cult. & Biotech. 27(2): 161-169, 2017 (December)

scholarly journals Link between Lipid Second Messengers and Osmotic Stress in Plants

2021 ◽  
Vol 22 (5) ◽  
pp. 2658
Author(s):  
Beatriz A. Rodas-Junco ◽  
Graciela E. Racagni-Di-Palma ◽  
Michel Canul-Chan ◽  
Javier Usorach ◽  
S. M. Teresa Hernández-Sotomayor
Keyword(s):  
Osmotic Stress ◽  
Protein Conformation ◽  
Membrane Lipids ◽  
Second Messengers ◽  
Physiological Responses ◽  
Plant Cells ◽  
Transient Molecules ◽  
Molecular Approaches ◽  
Extracellular Signal ◽  
Different Types

Plants are subject to different types of stress, which consequently affect their growth and development. They have developed mechanisms for recognizing and processing an extracellular signal. Second messengers are transient molecules that modulate the physiological responses in plant cells under stress conditions. In this sense, it has been shown in various plant models that membrane lipids are substrates for the generation of second lipid messengers such as phosphoinositide, phosphatidic acid, sphingolipids, and lysophospholipids. In recent years, research on lipid second messengers has been moving toward using genetic and molecular approaches to reveal the molecular setting in which these molecules act in response to osmotic stress. In this sense, these studies have established that second messengers can transiently recruit target proteins to the membrane and, therefore, affect protein conformation, activity, and gene expression. This review summarizes recent advances in responses related to the link between lipid second messengers and osmotic stress in plant cells.

Imperfect crowding adaptation of mammalian cells towards osmotic stress and its modulation by osmolytes

2017 ◽  
Vol 13 (11) ◽  
pp. 2218-2221 ◽  
Author(s):  
David Gnutt ◽  
Oliver Brylski ◽  
Eugen Edengeiser ◽  
Martina Havenith ◽  
Simon Ebbinghaus
Keyword(s):  
Osmotic Stress ◽  
Mammalian Cells ◽  
Short Term ◽  
Short Term Adaptation

The short-term adaptation of cellular crowding after osmotic stress is imperfect but can be modulated by the osmolyte TMAO.

Mutagenic and physiological responses in the juveniles of African catfish, Clarias gariepinus (Burchell 1822) following short term exposure to praziquantel

2014 ◽  
Vol 46 (4) ◽  
pp. 264-273 ◽  
Author(s):  
Christopher Dididgwu Nwani ◽  
Macniel Chijioke Nnaji ◽  
Stanley Ndubuisi Oluah ◽  
Paul Chinedu Echi ◽  
Helen Ogochukwu Nwamba ◽  
...  
Keyword(s):  
Physiological Responses ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Short Term ◽  
Short Term Exposure

scholarly journals Plant growth under suboptimal water conditions: early responses and methods to study them

2020 ◽  
Vol 71 (5) ◽  
pp. 1706-1722 ◽  
Author(s):  
Marieke Dubois ◽  
Dirk Inzé
Keyword(s):  
Plant Growth ◽  
Osmotic Stress ◽  
Stress Responses ◽  
Soil Drought ◽  
Growth Media ◽  
Plant Responses ◽  
Short Term ◽  
Environmental Constraint ◽  
Early Stress ◽  
Different Types

Abstract Drought stress forms a major environmental constraint during the life cycle of plants, often decreasing plant yield and in extreme cases threatening survival. The molecular and physiological responses induced by drought have been the topic of extensive research during the past decades. Because soil-based approaches to studying drought responses are often challenging due to low throughput and insufficient control of the conditions, osmotic stress assays in plates were developed to mimic drought. Addition of compounds such as polyethylene glycol, mannitol, sorbitol, or NaCl to controlled growth media has become increasingly popular since it offers the advantage of accurate control of stress level and onset. These osmotic stress assays enabled the discovery of very early stress responses, occurring within seconds or minutes following osmotic stress exposure. In this review, we construct a detailed timeline of early responses to osmotic stress, with a focus on how they initiate plant growth arrest. We further discuss the specific responses triggered by different types and severities of osmotic stress. Finally, we compare short-term plant responses under osmotic stress versus in-soil drought and discuss the advantages, disadvantages, and future of these plate-based proxies for drought.

Physiological and Behavioral Reactions of Fishes to Temperature Change

1977 ◽  
Vol 34 (5) ◽  
pp. 730-734 ◽  
Author(s):  
L. I. Crawshaw
Keyword(s):  
Central Nervous System ◽  
Temperature Change ◽  
Physiological Responses ◽  
Behavioral Responses ◽  
Teleost Fishes ◽  
Acid Base ◽  
Short Term ◽  
Behavioral Reactions ◽  
Key Words Fish ◽  
Produce Acid

Teleost fishes possess a central nervous system thermoregulatory mechanism remarkably similar to that of other vertebrates. Inputs from peripheral and anterior brainstem thermosensitive elements are integrated to effect appropriate thermoregulatory responses. The integrated output signal from the thermoregulatory center also appears to provide an input to the respiratory system. Short-term deviations from a given temperature alter respiratory requirements, produce acid–base imbalance, and cause disturbances in fluid–electrolyte regulation. Acclimation to a given temperature involves changes that counteract these disturbances. Key words: fish, temperature change, behavioral responses, physiological responses, temperature regulation

Physiological responses to short-term fasting among herbivorous, omnivorous, and carnivorous fishes

2014 ◽  
Vol 184 (4) ◽  
pp. 497-512 ◽  
Author(s):  
Ryan D. Day ◽  
Ian R. Tibbetts ◽  
Stephen M. Secor
Keyword(s):  
Physiological Responses ◽  
Short Term
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