Physiological and ultrastructural responses of the brown seaweed Undaria pinnatifida to triphenyltin chloride (TPTCL) stress

Li, Su Fang; Liu, Yan; Gong, Qing Li; Gao, Xu; Li, Jing Yu

doi:10.1016/j.marpolbul.2020.110978

Cited by 5 publications

(2 citation statements)

References 65 publications

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“…In recent years, coastal chemical pollutants have constituted a major environmental threat to seaweed farming [ 33 ]. Our previous study showed that high TPTCL concentrations negatively influenced the survival, growth, and enzyme activities of cultivated sporophytes of U. pinnatifida , promoting a decline in yield and quality [ 34 ]. Additionally, U. pinnatifida sporophytes exhibited excellent TPTCL accumulation and degradation capabilities under controlled laboratory conditions.…”

Section: Introductionmentioning

confidence: 99%

Temporal and Within-Sporophyte Variations in Triphenyltin Chloride (TPTCL) and Its Degradation Products in Cultivated Undaria pinnatifida

Ren,

Zhang,

Gao

et al. 2024

Plants

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Undaria pinnatifida can effectively deal with organotin pollution through its excellent accumulation and degradation capabilities found under laboratory conditions. However, nothing is known regarding its accumulation, degradation performance, and related impact factors in the wild farming area. In this study, we monitored triphenyltin chloride (TPTCL) contents and degradation products in different algal parts (blades, stipes, sporophylls, and holdfasts) of cultivated U. pinnatifida from December 2018 to May 2019. Our results showed that sporophytes had an accumulation and degradation capacity for TPTCL. The TPTCL contents and degradation products varied with the algal growth stages and algal parts. TPTCL accumulated in the blades at the growth stage and the blades, stipes, sporophylls, and holdfasts at the mature stage. The TPTCL content among algal parts was blades (74.92 ± 2.52 μg kg−1) > holdfasts (62.59 ± 1.42 μg kg−1) > sporophylls (47.24 ± 1.41 μg kg−1) > stipes (35.53 ± 0.55 μg kg−1). The primary degradation product DPTCL accumulated only in the blades at any stage, with a concentration of 69.30 ± 3.89 μg kg−1. The secondary degradation product MPTCL accumulated in the blades at the growth stage and in the blades, stipe, and sporophyll at the mature stage. The MPTCL content among algal parts was blades (52.80 ± 3.48 μg kg−1) > sporophylls (31.08 ± 1.53 μg kg−1) > stipes (20.44 ± 0.85 μg kg−1). The accumulation pattern of TPTCL and its degradation products seems closely related to nutrient allocation in U. pinnatifida. These results provide the basis for applying cultivated U. pinnatifida in the bioremediation of organotin pollution and the food safety evaluation of edible algae.

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Section: Introductionmentioning

confidence: 99%

Temporal and Within-Sporophyte Variations in Triphenyltin Chloride (TPTCL) and Its Degradation Products in Cultivated Undaria pinnatifida

Ren,

Zhang,

Gao

et al. 2024

Plants

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“…Additionally, the cultivation of this species is beneficial to coastal ecosystems in many ways, including alleviation of harmful microalgal blooms, increasing the dissolved oxygen in the seawater, and maintaining coastal ecological balance [37]. In recent years, the deterioration of the marine environment caused by climate change and human activities has posed a severe threat to the mariculture production of seaweeds [38][39][40]. Due to the economic and ecological importance of G. lemaneiformis, a considerable number of studies about the impacts of diverse abiotic factors on its physiological and biochemical performance have been conducted [41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

Interactions between Cultivated Gracilariopsis lemaneiformis and Floating Sargassum horneri under Controlled Laboratory Conditions

Song

Liu

et al. 2022

Water

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The golden tide dominated by Sargassum has become a frequently-occurring marine ecological event that may constitute major biotic threats to seaweed aquaculture. In this study, the interaction between cultivated Gracilariopsis lemaneiformis (GL) and floating Sargassum horneri (SH) was investigated by physiological and biochemical measurements under mono-culture and co-culture with different biomass density ratios of 2:1 (2GL:1SH), 1:1 (1GL:1SH), and 1:2 (1GL:2SH). The relative growth rate, net photosynthetic rate, and NO3-N uptake rate of G. lemaneiformis were significantly greater at the biomass density ratio of 2:1 than at mono-culture. However, these physiological parameters and biochemical composition contents (chlorophyll a and soluble protein) of G. lemaneiformis decreased significantly with increasing biomass of S. horneri. Meanwhile, these physiological and biochemical parameters of S. horneri were greater in all co-culture models than at mono-culture. They decreased significantly with decreasing biomass of G. lemaneiformis. These results indicate that the occurrence of floating S. horneri with low biomass can stimulate the growth of G. lemaneiformis, whereas its outbreak may significantly reduce the production and quality of G. lemaneiformis. G. lemaneiformis cultivation may be beneficial to the increased biomass of floating S. horneri.

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Accumulation and degradation of organotin compounds in cultivated sporophytes of the brown alga Undaria pinnatifida

Zhang

Gong

et al. 2022

J Appl Phycol

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Physiological and ultrastructural responses of the brown seaweed Undaria pinnatifida to triphenyltin chloride (TPTCL) stress

Cited by 5 publications

References 65 publications

Temporal and Within-Sporophyte Variations in Triphenyltin Chloride (TPTCL) and Its Degradation Products in Cultivated Undaria pinnatifida

Temporal and Within-Sporophyte Variations in Triphenyltin Chloride (TPTCL) and Its Degradation Products in Cultivated Undaria pinnatifida

Interactions between Cultivated Gracilariopsis lemaneiformis and Floating Sargassum horneri under Controlled Laboratory Conditions

Accumulation and degradation of organotin compounds in cultivated sporophytes of the brown alga Undaria pinnatifida

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