Photosynthetic response of a cultivated red alga, Neopyropia yezoensis f. narawaensis (=Pyropia yezoensis f. narawaensis; Bangiales, Rhodophyta) to dehydration stress differs with between two heteromorphic life-history stages

Terada, Ryuta; Nishihara, Gregory N.; Arimura, Kaname; Watanabe, Yasumasa; Mine, Takayuki; Morikawa, Tarou

doi:10.1016/j.algal.2021.102262

Cited by 20 publications

(18 citation statements)

References 40 publications

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“…Given that S. japonica is a subtidal species, the capacity of photosynthetic recovery after desiccation is not expected to be high relative to the intertidal seaweeds (Davison & Pearson 1996;Holzinger & Karsten 2013;Beer et al 2014). Studies of Bangiales, P. orbicularis from Chile, N. yezoensis, and Phycocalidia tanegashimensis (Shinmura) Santiañez from Japan (Contreras-Porcia et al 2011;Xu et al 2021;Terada et al 2021a), suggest that desiccation tolerance enables these species to occupy relatively extreme intertidal environments. Compared to species from the lower intertidal or subtidal zones, species in the upper intertidal have greater antioxidant enzymatic activity and a higher capacity to buffer ROS excess induced during desiccation (Contreras-Porcia et al 2011;Flores-Molina et al 2014;Kumar et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…2021; Terada et al . 2021a), suggest that desiccation tolerance enables these species to occupy relatively extreme intertidal environments. Compared to species from the lower intertidal or subtidal zones, species in the upper intertidal have greater antioxidant enzymatic activity and a higher capacity to buffer ROS excess induced during desiccation (Contreras‐Porcia et al .…”

Section: Discussionmentioning

confidence: 99%

“…The experimental design was adopted from our recent studies on the desiccation effects on the photosynthetic activity in seaweeds (Terada et al 2020(Terada et al , 2021aIto et al 2021). One day before the experiment, the explants (ca.…”

Section: Sample Collection and Stock Maintenancementioning

confidence: 99%

“…Porphyra [sensu lato; Bangiales], Gracilaria [sensu lato; Gracilariales], Chondrus [Gigartinales], and Ulva [Ulvales]; Abe et al 2001;Ji & Tanaka 2002;Zou & Gao 2002;Ito et al 2021;Kameyama et al 2021;Terada et al 2021b). For instance, the macroscopic gametophyte of a red alga, Neopyropia yezoensis (Ueda) Yang et Brodie (= Pyropia yezoensis; Bangiales), has a strong tolerance to desiccation, given that its reduced Photosystem II (PSII) photochemical efficiency during 24 h of emersion returned to near initial values after reimmersion in seawater (Terada et al 2021a). It is in contrast to the microscopic sporophyte stage that can be found in the dead oyster shells in the subtidal zone; its photochemical efficiency shortly dropped to zero at 5 min of emersion, and never restored even after rehydration.…”

Section: Introductionmentioning

confidence: 99%

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The effects of desiccation and salinity gradients in the PSII photochemical efficiency of a subtidal brown alga, Saccharina japonica (Laminariales) from Hokkaido, Japan

Shindo

Nishihara

Borlongan

et al. 2022

Phycological Research

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We determined the response of photochemical efficiency to desiccation and salinity in an edible brown alga, Saccharina japonica (var. japonica), using a pulse amplitude modulation chlorophyll fluorometer. Natural populations of this species in Muroran, Hokkaido, Japan are most of the time immersed in the subtidal zone; however, those at the uppermost part of the sublittoral are sometimes emersed during low tide. In the laboratory experiment, the alga under aerial exposure up to 8 h under dim light at 20 C and 50% humidity showed that the effective quantum yields (ΔF/F m 0 ) of Photosystem II quickly declined after more than 45 min of emersion; ΔF/F m 0 also failed to recover to the initial level even after 1 day of rehydration in seawater. Under emersion, the ΔF/F m 0 values were relatively stable and above 0.5 when the absolute water content (AWC, %) was greater than 50%; however, it declined as the AWC decreased. Once the algae were dehydrated to an AWC of less than 50%, their ΔF/F m 0 did not return to the initial level despite subsequent reimmersion in seawater, suggesting the low ability of photosynthetic recovery from dehydration. Results of in situ measurements in Muroran showed that the ΔF/F m 0 of S. japonica declined during the tidal exposure; however, it recovered after they were again immersed in seawater due to the rising tide. Furthermore, S. japonica showed a stenohaline photosynthetic response between 20 and 40 psu, as their ΔF/F m 0 values were found to be unchanged in these salinities after 5 days of laboratory culture; this suggests the seaweed's photosynthetic tolerance and/or acclimation within such a relatively narrow range, which might be one of the traits that preclude its occurrence in the intertidal and brackish waters. Indeed, desiccation risk and fluctuating salinity are important limiting factors that influence the stability of kelp beds for sustainable utilization in the regional fishery including mariculture of this species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Sample Collection and Stock Maintenancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The effects of desiccation and salinity gradients in the PSII photochemical efficiency of a subtidal brown alga, Saccharina japonica (Laminariales) from Hokkaido, Japan

Shindo

Nishihara

Borlongan

et al. 2022

Phycological Research

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“…For example, the cultivation period of Neoporphyra haitanensis , which is endemic to China, is from September to February [ 5 ]. For Neopyropia yezoensis , their cultivation period occurs from November to the following April [ 6 ]. During this period, there is a cold winter as well as seasonal changes.…”

Section: Introductionmentioning

confidence: 99%

Cold stress tolerance of the intertidal red alga Neoporphyra haitanensis

Zhu

et al. 2022

BMC Plant Biol

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Background Red algae Porphyra sensu lato grow naturally in the unfavorable intertidal environment, in which they are exposed to substantial temperature fluctuations. The strategies of Porphyra to tolerate cold stress are poorly understood. Results Herein, investigations revealed that chilling and freezing induced alterations in the physiological properties, gene transcriptional profiles and metabolite levels in the economically important red algae species, Neoporphyra haitanensis. Control samples (kept at 20 °C) were compared to chilled thalli (10 and 4 °C) and to thalli under − 4 °C conditions. Chilling stress did not affect the health or photosynthetic efficiency of gametophytes, but freezing conditions resulted in the arrest of growth, death of some cells and a decrease in photosynthetic activity as calculated by Fv/Fm. Transcriptome sequencing analysis revealed that the photosynthetic system was down-regulated along with genes associated with carbon fixation and primary metabolic biosynthesis. Adaptive mechanisms included an increase in unsaturated fatty acids levels to improve membrane fluidity, an increase in floridoside and isofloridoside content to enhance osmotic resistance, and an elevation in levels of some resistance-associated phytohormones (abscisic acid, salicylic acid, and methyl jasmonic acid). These physiochemical alterations occurred together with the upregulation of ribosome biogenesis. Conclusions N. haitanensis adopts multiple protective mechanisms to maintain homeostasis of cellular physiology in tolerance to cold stress.

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The occurrence of Phycocalidia tanegashimensis (Bangiaceae) in the splash zone may be related to the tolerance of photochemical efficiency to temperature, irradiance, desiccation, and salinity

Terada

Watanabe

et al. 2021

J Appl Phycol

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Photosynthetic response of a cultivated red alga, Neopyropia yezoensis f. narawaensis (=Pyropia yezoensis f. narawaensis; Bangiales, Rhodophyta) to dehydration stress differs with between two heteromorphic life-history stages

Cited by 20 publications

References 40 publications

The effects of desiccation and salinity gradients in the PSII photochemical efficiency of a subtidal brown alga, Saccharina japonica (Laminariales) from Hokkaido, Japan

The effects of desiccation and salinity gradients in the PSII photochemical efficiency of a subtidal brown alga, Saccharina japonica (Laminariales) from Hokkaido, Japan

Cold stress tolerance of the intertidal red alga Neoporphyra haitanensis

The occurrence of Phycocalidia tanegashimensis (Bangiaceae) in the splash zone may be related to the tolerance of photochemical efficiency to temperature, irradiance, desiccation, and salinity

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