Editorial: Environmental Stress-Promoting Responses in Algae

Mikami, Koji; Takio, Susumu; Hiwatashi, Yuji; Kumar, Manoj

doi:10.3389/fmars.2021.797613

Cited by 4 publications

(2 citation statements)

References 23 publications

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“…The regulation of the timing of entry into the reproductive phase in response to stress is an ancient evolutionary trait. For example, in algae, both sexual and asexual reproduction can be triggered by wounding or other forms of stress [ 24 ].…”

Section: The Survival-reproduction Trade-off In Plantsmentioning

confidence: 99%

Plant Hormone Modularity and the Survival-Reproduction Trade-Off

Kurepa,

Smalle

2023

Biology

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Biological modularity refers to the organization of living systems into separate functional units that interact in different combinations to promote individual well-being and species survival. Modularity provides a framework for generating and selecting variations that can lead to adaptive evolution. While the exact mechanisms underlying the evolution of modularity are still being explored, it is believed that the pressure of conflicting demands on limited resources is a primary selection force. One prominent example of conflicting demands is the trade-off between survival and reproduction. In this review, we explore the available evidence regarding the modularity of plant hormones within the context of the survival-reproduction trade-off. Our findings reveal that the cytokinin module is dedicated to maximizing reproduction, while the remaining hormone modules function to ensure reproduction. The signaling mechanisms of these hormone modules reflect their roles in this survival-reproduction trade-off. While the cytokinin response pathway exhibits a sequence of activation events that aligns with the developmental robustness expected from a hormone focused on reproduction, the remaining hormone modules employ double-negative signaling mechanisms, which reflects the necessity to prevent the excessive allocation of resources to survival.

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Section: The Survival-reproduction Trade-off In Plantsmentioning

confidence: 99%

Plant Hormone Modularity and the Survival-Reproduction Trade-Off

Kurepa,

Smalle

2023

Biology

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“…They are long been commercially exploited as a source of hydrocolloids, like agar and carrageenan, widely used in food industries (3). Compared to terrestrial plants, marine algae are exposed to diverse environmental stress including fluctuations in temperature, salinity, nutrients and light (4). Temperature is a major factor that varies across the seasons, location, day-night cycle, etc.…”

Section: Introductionmentioning

confidence: 99%

Phase transition in atomistic simulations of model membrane with thylakoid lipids of red algae

Rathod

Chavda

Manna

2022

Preprint

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Marine algae are diverse photosynthetic organisms, profoundly rich in bioactive compounds. Temperature is a major factor in algal cultivation and biomass production. At the cellular level, the change of temperature is reflected in oscillating algal lipid/fatty acid profile and inhibition of photosynthetic activities. The function of thylakoid membrane system is intimately dependent on its lipid matrix, however the molecular organization of these lipid membranes and particularly their adaptive arrangements under temperature stress remain largely unexplored. The present work employing extensive atomistic simulations provides the first atomistic view of the phase transition and domain coexistence in model membrane composed of thylakoid lipids of a marine alga, between 10-40 °C. The model membrane undergoes a transition from a gel-like phase at 10-15 °C to a homogeneous liquid-disordered phase at 40 °C. Clear evidences of spontaneous phase separation into coexisting nanoscale domains are detected at intermediate temperatures. Particularly at 25-30 °C, we identified the formation of a stable rippled phase, where the gel-like domains rich in saturated and nearly hexagonally packed lipids separated from fluid-like domains enriched in lipids containing polyunsaturated chains. Cholesterol impairs the phase transition and the emergence of domains, and induces a fairly uniform liquid-ordered phase in the membrane over the temperatures studied. The results have implications in understanding the role of lipids in temperature adaptation in algal.

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