Special focus: Microbial response to environmental stresses

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Adaptations to Environmental Stresses.

Environmental stresses come in many forms, yet the most prevalent stresses have in common their effect on plant water status. The availability of water for its biological roles as solvent and transport medium, as electron donor in the Hill reaction, and as evaporative coolant is often impaired by environmental conditions. Although plant species vary in their sensitivity and response to the decr...

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Multifunctional Roles of Plant Dehydrins in Response to Environmental Stresses

To respond to environmental changes, plants have developed complex mechanisms that allow them to rapidly perceive and respond to abiotic stresses. Late embryogenesis abundant (LEA) proteins are a large and diverse family that play important roles in environmental stress tolerance in plants. Dehydrins belong to group II LEA proteins, which are considered stress proteins involved in the formation...

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2 The environmental stress response: a common yeast response to diverse environmental stresses

Unicellular organisms require specific internal conditions for optimal growth and function, however sudden changes in the external environment can perturb the internal milieu, disrupting normal processes. Therefore, cells must maintain their internal system despite fluctuations in the external surroundings. One mechanism that yeast cells use to protect the internal system from the effects of en...

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Responses of cariogenic streptococci to environmental stresses.

To persist in the oral cavity, bacteria must be able to tolerate rapid and substantial environmental fluctuations, particularly in pH and nutrient source and availability. Various species of Streptococcus, one of the most abundant genera in the mouth, are associated with oral health, as well as with dental caries. Cariogenic streptococci depend on a biofilm lifestyle for survival and persistenc...

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Cellular response to hyperosmotic stresses.

Cells in the renal inner medulla are normally exposed to extraordinarily high levels of NaCl and urea. The osmotic stress causes numerous perturbations because of the hypertonic effect of high NaCl and the direct denaturation of cellular macromolecules by high urea. High NaCl and urea elevate reactive oxygen species, cause cytoskeletal rearrangement, inhibit DNA replication and transcription, i...

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ژورنال

عنوان ژورنال: Journal of Basic Microbiology

سال: 2019

ISSN: 0233-111X

DOI: 10.1002/jobm.201970012