Allelopathic Effect of Macroalga Gracilaria Tenuistipitata (Rhodophyta) on the Photosynthetic Apparatus of Red-tide Causing Microalga Prorocentrum micans

Ye, Changpeng; Zhang, Meng-Cheng

doi:10.1016/j.ieri.2013.11.094

Cited by 15 publications

(6 citation statements)

References 25 publications

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“…Tang and Gobler 21 showed that the dried Ulva lactuca was equally or more potent than the fresh material, an observation consistent with the hypothesis that polyunsaturated fatty acids or organosulfur compounds are active allelopathic agents 41 , which were also observed in dried seaweed of G. lemaneiformis and G. tenuistipitat in our previous experiments [42][43][44] . Dithiolane and trithiane compounds isolated and identified from Characean species were also found to have allelopathic effects on epiphytic diatoms and other phytoplankton 47 .…”

Section: Discussionsupporting

confidence: 77%

The photo-physiologica inhibited mechanism on typical HABs,Scrippsiella trochoidea, by seawater extraction of macroalga, Gracilaria Lemaniformis

Ye¹,

Chen²,

Zhao³

2016

Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)

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Macroalga, due to its high-harvesting yield, easily available, low-cost, and eco-friendly, become more and more favored tool-like alga for researchers. The method of control harmful algal blooms (HABs) by macroalga is an international study issue, and the water extract of seaweed have the advantage of full-time and all-location. While the most study were focused on the level of apparent growth, little was known about the photo-physiological inhibited mechanism in HABs by macroalga. In this study, the thecate dinoflagellate bloom microalga, Scrippsiella trochoidea, was co-cultured with different grams seawater extraction from fresh macroalga Gracilaria lemaneiformis under laboratory conditions photosynthetic oxygen evolution and Chlorophyll fluorescence techniques are used, to study the effects of the seawater extract of Gracilaria lemaneiformis on the photosystem II (PSⅡ) of red tide algae. The results are as follows: Compared with control, the biomass of S. trochoideain 0.6g/L treatment was higher, while the biomass in 1.2g/L, 2.4g/L and 4.8g/L treatment are lower, which shows the pattern of hormesis effect. Photosynthetic oxygen evolution rates (P max) were decreased with the increase of extract concentration, while the dark respiration rates (Rd) were converse. The J, I, P points in 0.6g/L treatment were higher than the control one, while J, I, P points in 1.2g/L treatment is lower. OJIP curve in 2.4g/L and 4.8g/L tend to be a straight line. The value of Wk, ABC/RC, TRo/RC, DIo/RC, Vj, φDo and Mo in 2.4g/L and 4.8g/L treatments was increased, while the value of fraction of OEC,φPo, Fv/Fo, ETo/RC, ψ0, and φEo was decreased. The inhibitory effects of the macroalga's sea water extraction on the microalga, according to the JIP-test and pigments contents, include a decrease in the number of active reaction centers, the blocking-up of the electron transport chain. This study suggests that water extraction of G. lemaneiformis is effective in inhibiting photophysiological activity of S. trochoidea, and thus be a potential 'tool alga' for controlling S. trochoidea blooms.

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Section: Discussionsupporting

confidence: 77%

The photo-physiologica inhibited mechanism on typical HABs,Scrippsiella trochoidea, by seawater extraction of macroalga, Gracilaria Lemaniformis

Ye¹,

Chen²,

Zhao³

2016

Proceedings of the 2016 5th International Conference on Energy and Environmental Protection (ICEEP 2016)

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“…Red algae are reported as a source of secondary metabolites including terpenes, which exhibit a range of activities such as feeding inhibition for marine herbivores (Sakata et al, 1991;Kurata et al, 1998) and antialgal effect (Kö nig et al, 1999). Our results might suggest that Rhodymenia is not a strong producer of chemical-deterrents, unlike other red algal species: Corallina pilulifera, Gracilaria lemaneiformis and Gracilaria tenuistipitata displayed algicidal activity against several harmful algae (Jeong et al, 2000;Wang et al, 2007a,b;Ye and Zhang, 2013). The lower inhibitory effect observed in Rhodymenia in this study could partly explain results reported in field studies in both northern Adriatic Sea and North Aegean Sea, where the maximum abundances of Table 3 Mean cell abundances (cells ml À1 ) AE standard error (SE) of Ostreopsis cf.…”

Section: Discussionmentioning

confidence: 75%

“…Moreover, the development of environmentfriendly and cost-effective strategies for controlling algal blooms, such as using the allelopathy of aquatic macrophytes has gained great interest and has been suggested by several authors (Jeong et al, 2000;Nan et al, 2004;Jin et al, 2005;Wang et al, 2007a,b;Hu and Hong, 2008;Tang and Gobler, 2011). The interactions between microalgae and macroalgae have been investigated between phytoplankton species that form blooms and a number of both freshwater (Gross, 2003;Hu and Hong, 2008) and seawater macrophytes (Gross, 2003;Jin and Dong, 2003;Nan et al, 2004Nan et al, , 2008Jin et al, 2005;Wang et al, 2007a,b;Ye and Zhang, 2013) but no information is available about macroalgae and benthic dinoflagellate interactions.…”

Section: Introductionmentioning

confidence: 99%

Allelopathic interactions between the HAB dinoflagellate Ostreopsis cf. ovata and macroalgae

et al. 2015

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“…Ye et al [ 77 ] have found that the main photosynthetic inhibition targets by the macroalgae Gracilaria lemaneiformis on the dinoflagellate Scrippsiella trochoidea were a decrease in the quantity and size of antenna chlorophyll, in the number of active reaction centers, and in the photochemical efficiency of PSII, in addition to the blocking of the electron transport chain and the damage to the oxygen-evolving complex. Ye and Zhang [ 78 ] have also shown that dried thalli of Gracilaria tenuistipitata inhibited the photosynthesis of P . micans .…”

Section: Discussionmentioning

confidence: 99%

New insights on the species-specific allelopathic interactions between macrophytes and marine HAB dinoflagellates

et al. 2017

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Macrophytes are known to release allelochemicals that have the ability to inhibit the proliferation of their competitors. Here, we investigated the effects of the fresh leaves of two magnoliophytes (Zostera noltei and Cymodocea nodosa) and thalli of the macroalgae Ulva rigida on three HAB-forming benthic dinoflagellates (Ostreopsis cf. ovata, Prorocentrum lima, and Coolia monotis). The effects of C. nodosa and U. rigida were also tested against the neurotoxic planktonic dinoflagellate Alexandrium pacificum Litaker sp. nov (former Alexandrium catenella). Co-culture experiments were conducted under controlled laboratory conditions and potential allelopathic effects of the macrophytes on the growth, photosynthesis and toxin production of the targeted dinoflagellates were evaluated. Results showed that U. rigida had the strongest algicidal effect and that the planktonic A. pacificum was the most vulnerable species. Benthic dinoflagellates seemed more tolerant to potential allelochemicals produced by macrophytes. Depending on the dinoflagellate/macrophyte pairs and the weight of leaves/thalli tested, the studied physiological processes were moderately to heavily altered. Our results suggest that the allelopathic activity of the macrophytes could influence the development of HAB species.

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Allelopathic Effect of Macroalga Gracilaria Tenuistipitata (Rhodophyta) on the Photosynthetic Apparatus of Red-tide Causing Microalga Prorocentrum micans

Cited by 15 publications

References 25 publications

The photo-physiologica inhibited mechanism on typical HABs,Scrippsiella trochoidea, by seawater extraction of macroalga, Gracilaria Lemaniformis

The photo-physiologica inhibited mechanism on typical HABs,Scrippsiella trochoidea, by seawater extraction of macroalga, Gracilaria Lemaniformis

Allelopathic interactions between the HAB dinoflagellate Ostreopsis cf. ovata and macroalgae

New insights on the species-specific allelopathic interactions between macrophytes and marine HAB dinoflagellates

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