Effects of temperature, irradiance, and pH on the growth and biochemical composition of Haslea ostrearia batch-cultured in an airlift plan-photobioreactor

Adjout, Rebiha; Mouget, Jean‐Luc; Pruvost, Jérémy; Chentir, Imène; Loiseau, Céline; Hamed, Mohammed Bey Baba

doi:10.1007/s00253-022-12055-1

Cited by 4 publications

(2 citation statements)

References 65 publications

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“…The pH value of rhizosphere soil was positively correlated with light, and the soil pH was the highest in summer (p < 0.01). Sheng et al [56] and Adjout et al [57] showed that the pH increases along with the illumination. Additionally, it has been shown that EC, pH, AN and OM are main factors that affect soil nitrogen mineralization and nitrification [58][59][60], and this study also showed that they were significantly positively correlated.…”

Section: Discussionmentioning

confidence: 99%

Changes of Key Soil Factors, Biochemistry and Bacterial Species Composition during Seasons in the Rhizosphere and Roots of Codonopsis pilosula (tangshen)

et al. 2023

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Codonopsis pilosula is a medicinal and edible herb with a rich nutritional value. In Gansu Province, China, its production quality and yield differ during the four seasons. Here, we investigated the differences in the microfloral composition and metabolic functions in the rhizospheric soil and roots of C. pilosula during the four seasons, and we also analyzed their dynamic and synergistic effects on C. pilosula growth and carbohydrate content change. The C. pilosula samples were analyzed for plant physiology, microfloral composition and metabolic functions in the rhizospheric soil and roots using high-throughput sequencing technology. Environmental indices including soil physiochemistry and meteorological conditions were also determined by the coupled chromatography–spectroscopy technique. The results revealed that the C. pilosula growth was affected by temperature, precipitation and light intensity, with the bacterial structures and functions of the soil and root samples showing obvious seasonal changes. Due to the diversity of microbial composition and community metabolic function, and the synergistic effect of microbial and environmental factors, there are significant differences in stress resistance, physiological status and metabolites of C. pilosula in different seasons. Furthermore, the change in seasons was significantly correlated with the quality and yield of C. pilosula. This study provides a scientific basis for soil improvement and the refinement of local Radix C. pilosula cultivation methods.

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Section: Discussionmentioning

confidence: 99%

Changes of Key Soil Factors, Biochemistry and Bacterial Species Composition during Seasons in the Rhizosphere and Roots of Codonopsis pilosula (tangshen)

et al. 2023

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“…Indeed, this could be directly deleterious to blue Haslea cells by affecting biochemical and physicochemical processes, thus making them less competitive. No data are available regarding the thermal preferendum of H. provincialis; however, the optimal growth of H. ostrearia has been recorded at 20 • C in a laboratory [40]. In Calvi Bay, the temperature of 20 • C is usually reached by early June.…”

Section: Discussionmentioning

confidence: 99%

Benthic Diatom Blooms of Blue Haslea spp. in the Mediterranean Sea

Seveno,

Car,

Sirjacobs

et al. 2023

Marine Drugs

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Blue Haslea species are marine benthic pennate diatoms able to synthesize a blue-green water-soluble pigment, like marennine produced by H. ostrearia Simonsen. New species of Haslea synthetizing blue pigments were recently described (H. karadagensis, H. nusantara, H. provincialis and H. silbo). Their marennine-like pigments have allelopathic, antioxidative, antiviral and antibacterial properties, which have been demonstrated in laboratory conditions. Marennine is also responsible for the greening of oysters, for example, in the Marennes Oléron area (France), a phenomenon that has economical and patrimonial values. While blue Haslea spp. blooms have been episodically observed in natural environments (e.g., France, Croatia, USA), their dynamics have only been investigated in oyster ponds. This work is the first description of blue Haslea spp. benthic blooms that develop in open environments on the periphyton, covering turf and some macroalgae-like Padina. Different sites were monitored in the Mediterranean Sea (Corsica, France and Croatia) and two different blue Haslea species involved in these blooms were identified: H. ostrearia and H. provincialis. A non-blue Haslea species was also occasionally encountered. The benthic blooms of blue Haslea followed the phytoplankton spring bloom and occurred in shallow calm waters, possibly indicating a prominent role of light to initiate the blooms. In the absence of very strong winds and water currents that can possibly disaggregate the blue biofilm, the end of blooms coincided with the warming of the upper water masses, which might be profitable for other microorganisms and ultimately lead to a shift in the biofilm community.

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Hybrid photobioreactor operation for the intensified production of Haslea ostrearia and marennine in function of strain variability

Pedron,

Gargouch,

Mouget

et al. 2023

Algal Research

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Effects of temperature, irradiance, and pH on the growth and biochemical composition of Haslea ostrearia batch-cultured in an airlift plan-photobioreactor

Cited by 4 publications

References 65 publications

Changes of Key Soil Factors, Biochemistry and Bacterial Species Composition during Seasons in the Rhizosphere and Roots of Codonopsis pilosula (tangshen)

Changes of Key Soil Factors, Biochemistry and Bacterial Species Composition during Seasons in the Rhizosphere and Roots of Codonopsis pilosula (tangshen)

Benthic Diatom Blooms of Blue Haslea spp. in the Mediterranean Sea

Hybrid photobioreactor operation for the intensified production of Haslea ostrearia and marennine in function of strain variability

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