Rebuttal: Ojemaye, C. Y., Onwordi, C. T., Pampanin, D. M., Sydnes, M. O., &amp; Petrik, L., 2020. Presence and risk assessment of herbicides in the marine environment of Camps Bay (Cape Town, South Africa). Sci. Total Environ. https://doi.org/10.1016/j.scitotenv.2020.140346

Colenbrander, Darryl; Oelofse, Gregg; Roux, Mia le

doi:10.1016/j.scitotenv.2020.142576

Cited by 2 publications

(9 citation statements)

References 8 publications

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“…Although Colenbrander et al agreed with our findings, they objected to the point that the predominant source of the herbicides in Camps Bay is the marine sewage outfall. We agree with Colenbrander et al (2021) that the pollution of the marine environment of Camps Bay with herbicides requires urgent attention. We choose to exercise our right of reply to their rebuttal of our work in the present communication, in which we will address several points to supplement and further contextualize our previously published findings.…”

Section: Introductionsupporting

confidence: 86%

“…In our study, we measured the impact and calculated the risk factors for several benthic organisms (mussels, limpet, sea urchin, and seaweeds), considerably extending the knowledge about the impacts on marine biota. The study drew the attention of the Environmental Management Department in Cape Town, which resulted in a communication by (Colenbrander et al, 2021). Although Colenbrander et al agreed with our findings, they objected to the point that the predominant source of the herbicides in Camps Bay is the marine sewage outfall.…”

Section: Introductionsupporting

confidence: 60%

“…During 2017, the rain catchment record for Camps Bay was 77,000 m 3 (Colenbrander et al, 2021). Fig.…”

Section: Origin Of the Herbicidesmentioning

confidence: 99%

“…After passing the Camps Bay pump station, the sewage deriving from the suburb is released to Camps Bay at the following GPS position 33°56′ 42.214" S 18°21'59.257" E (Colenbrander et al, 2021), at a discharge depth of 23 m and 1497 m from the beach (CSIR, 2017). We would like to thank Colenbrander et al for providing the exact coordinates for the marine outfall in Camps Bay.…”

Section: Exact Coordinates For the Marine Outfall In Camps Baymentioning

confidence: 99%

“…The data in the CSIR report clearly show that herbicides are present in the sewage being discharged via the marine outfall in Camps Bay (CSIR, 2017). Yet Colenbrander et al (2021) claimed that the herbicides detected in Camps Bay enter the bay by urban run-off, urban streams, and domestic grey water.…”

Section: Origin Of the Herbicidesmentioning

confidence: 99%

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Herbicides in Camps Bay (Cape Town, South Africa), supplemented

Ojemaye

Onwordi

Pampanin

et al. 2021

Science of The Total Environment

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In 2017 sewage released into Camps Bay, Cape Town was nine fold more than rainfall.• Five herbicides were found in seawater, sediments and marine biota from Camps Bay. • The chemical load in sewage was not removed by a 3 mm screen pretreatment step. • The chemical signature found in marine biota was linked to herbicides in sewage. • Dilution of sewage by seawater did not prevent bioaccumulation of herbicides.

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Section: Introductionsupporting

confidence: 86%

Section: Introductionsupporting

confidence: 60%

“…During 2017, the rain catchment record for Camps Bay was 77,000 m 3 (Colenbrander et al, 2021). Fig.…”

Section: Origin Of the Herbicidesmentioning

confidence: 99%

Section: Exact Coordinates For the Marine Outfall In Camps Baymentioning

confidence: 99%

Section: Origin Of the Herbicidesmentioning

confidence: 99%

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Herbicides in Camps Bay (Cape Town, South Africa), supplemented

Ojemaye

Onwordi

Pampanin

et al. 2021

Science of The Total Environment

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Genome-wide identification of PTI1 family in Setaria italica and salinity-responsive functional analysis of SiPTI1–5

Huangfu

Pan

et al. 2021

BMC Plant Biol

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Background PTI1 (Pto-interacting 1) protein kinase belongs to the receptor-like cytoplasmic kinase (RLCK) group of receptor-like protein kinases (RLK), but lack extracellular and transmembrane domains. PTI1 was first identified in tomato (Solanum lycopersicum) and named SlPTI1, which has been reported to interact with bacterial effector Pto, a serine/threonine protein kinase involved in plant resistance to bacterial disease. Briefly, the host PTI1 specifically recognizes and interacts with the bacterial effector AvrPto, which triggers hypersensitive cell death to inhibit the pathogen growth in the local infection site. Previous studies have demonstrated that PTI1 is associated with oxidative stress and hypersensitivity. Results We identified 12 putative PTI1 genes from the genome of foxtail millet (Setaria italica) in this study. Gene replication analysis indicated that both segmental replication events played an important role in the expansion of PTI1 gene family in foxtail millet. The PTI1 family members of model plants, i.e. S. italica, Arabidopsis (Arabidopsis thaliana), rice (Oryza sativa), maize (Zea mays), S. lycopersicum, and soybean (Glycine max), were classified into six major categories according to the phylogenetic analysis, among which the PTI1 family members in foxtail millet showed higher degree of homology with those of rice and maize. The analysis of a complete set of SiPTI1 genes/proteins including classification, chromosomal location, orthologous relationships and duplication. The tissue expression characteristics revealed that SiPTI1 genes are mainly expressed in stems and leaves. Experimental qRT-PCR results demonstrated that 12 SiPTI1 genes were induced by multiple stresses. Subcellular localization visualized that all of foxtail millet SiPTI1s were localized to the plasma membrane. Additionally, heterologous expression of SiPTI1–5 in yeast and E. coli enhanced their tolerance to salt stress. Conclusions Our results contribute to a more comprehensive understanding of the roles of PTI1 protein kinases and will be useful in prioritizing particular PTI1 for future functional validation studies in foxtail millet.

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Rebuttal: Ojemaye, C. Y., Onwordi, C. T., Pampanin, D. M., Sydnes, M. O., & Petrik, L., 2020. Presence and risk assessment of herbicides in the marine environment of Camps Bay (Cape Town, South Africa). Sci. Total Environ. https://doi.org/10.1016/j.scitotenv.2020.140346

Cited by 2 publications

References 8 publications

Herbicides in Camps Bay (Cape Town, South Africa), supplemented

Herbicides in Camps Bay (Cape Town, South Africa), supplemented

Genome-wide identification of PTI1 family in Setaria italica and salinity-responsive functional analysis of SiPTI1–5

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