General Description of Cotton

Fang, David D.

doi:10.1007/978-3-030-00871-0_1

Cited by 6 publications

(13 citation statements)

References 35 publications

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“…22,26,27 In addition, cellulose is the major constituent of cotton wool. 28,29 Wassenaar and Hobson 30 experimentally determined ∼23% of hydrogen in cotton to be exchangeable at 130 • C, which is close to the temperature used in CVE. Thus, it is likely that there are contamination or fractionation effects of such organic (cover) materials on isotopic composition during CVE.…”

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confidence: 56%

“…Indeed, some studies report the use of other (organic) cover materials, such as fleece 7 or cotton wool, 17 although, for example, cotton contains hydrogen and oxygen itself and is considered hygroscopic 22,26,27 . In addition, cellulose is the major constituent of cotton wool 28,29 . Wassenaar and Hobson 30 experimentally determined ∼23% of hydrogen in cotton to be exchangeable at 130°C, which is close to the temperature used in CVE.…”

Section: Introductionmentioning

confidence: 93%

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Two common pitfalls in the analysis of water‐stable isotopologues with cryogenic vacuum extraction and cavity ring‐down spectroscopy

Haberstroh,

Kübert,

Werner

2024

Analytical Science Advances

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Water stable isotopologue analysis is widely used to disentangle ecohydrological processes. Yet, there are increasing reports of measurement uncertainties for established and emerging methods, such as cryogenic vacuum extraction (CVE) or cavity ring‐down spectroscopy (CRDS). With this study, we investigate two pitfalls, that potentially contribute to uncertainties in water‐stable isotopologue research. To investigate fractionation sources in CVE, we extracted pure water of known isotopic composition with cotton, glass wool or without cover and compared the isotopologue results with non‐extracted reference samples. To characterise the dependency of δ2H and δ18O on the water mixing ratio in CRDS, which is of high importance for in‐situ applications with large natural variations in mixing ratios, we chose samples with a large range of isotopic compositions and determined δ2H and δ18O for different water mixing ratios with two CRDS analysers (Picarro, Inc.). Cotton wool had a strong fractionation effect on δ2H values, which increased with more 2H‐enriched samples. δ2H and δ18O values showed a strong dependency on the water mixing ratio analysed with CRDS with differences of up to 34.5‰ (δ2H) and 3.9‰ (δ18O) for the same sample at different mixing ratios. CVE and CRDS, now routinely applied in water stable isotopologue research, come with pitfalls, namely fractionation effects of cover materials and water mixing ratio dependencies of δ2H and δ18O, which can lead to erroneous isotopologue results and thus, invalid conclusions about (ecohydrological) processes. These practical issues identified here should be reported and addressed adequately in water‐stable isotopologue research.

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confidence: 56%

Section: Introductionmentioning

confidence: 93%

Two common pitfalls in the analysis of water‐stable isotopologues with cryogenic vacuum extraction and cavity ring‐down spectroscopy

Haberstroh,

Kübert,

Werner

2024

Analytical Science Advances

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“…The G. hirsutum and G. barbadense are evolved due to hybridization between an A-genome species ( G. herbaceum or G. arboreum ) and a D-genome genome ( G. raimondii ) [ 38 ]. To understand the evolutionary relationships of ERF genes, a relative syntenic map of ERF genes from the four cotton species was fabricated (Fig.…”

Section: Resultsmentioning

confidence: 99%

Genome-wide characterization and expression analysis of Erf gene family in cotton

et al. 2022

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Background AP2/ERF transcription factors are important in a variety of biological activities, including plant growth, development, and responses to biotic and abiotic stressors. However, little study has been done on cotton’s AP2/ERF genes, although cotton is an essential fibre crop. We were able to examine the tissue and expression patterns of AP2/ERF genes in cotton on a genome-wide basis because of the recently published whole genome sequence of cotton. Genome-wide analysis of ERF gene family within two diploid species (G. arboreum & G. raimondii) and two tetraploid species (G. barbadense, G. hirsutum) was performed. Results A total of 118, 120, 213, 220 genes containing the sequence of single AP2 domain were identified in G. arboreum, G. raimondii, G. barbadense and G. hirsutum respectively. The identified genes were unevenly distributed across 13/26 chromosomes of A and D genomes of cotton. Synteny and collinearity analysis revealed that segmental duplications may have played crucial roles in the expansion of the cotton ERF gene family, as well as tandem duplications played a minor role. Cis-acting elements of the promoter sites of Ghi-ERFs genes predict the involvement in multiple hormone responses and abiotic stresses. Transcriptome and qRT-PCR analysis revealed that Ghi-ERF-2D.6, Ghi-ERF-12D.13, Ghi-ERF-6D.1, Ghi-ERF-7A.6 and Ghi-ERF-11D.5 are candidate genes against salinity tolerance in upland cotton. Conclusion Overwhelmingly, the present study paves the way to better understand the evolution of cotton ERF genes and lays a foundation for future investigation of ERF genes in improving salinity stress tolerance in cotton.

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“…The cotton (Gossypium hirsutum L.) is currently one of the main crops worldwide (Fang 2018), producing the ber constituted by complex structures almost exclusively by cellulose molecules and by D-glucose residues (French and Kim 2018). Although this species had signi cant participation in Ecuador's agricultural sector between , mainly in the provinces of Guayas and Manabí, the planted area was reduced due to climatic and economic factors and lack of certi ed seed (García et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Ramularia leaf spot and Boll rot are affected differently by organic and inorganic nitrogen fertilization in cotton plants

Palma-Zambrano

Gavilanes

Portalanza

et al. 2021

Preprint

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Background: In this work, the interaction among nitrogen fertilization using bovine manure, poultry manure, Jatropha curcas seed cake and urea, and the diseases Ramularia leaf spot (RLS) and Boll rot (BR), caused by Ramulariopsis pseudoglycines and Diplodia gossypina, respectively, on cotton plants (Gossypium hirsutum L.), was studied under field conditions. The intensity (incidence and severity in percentage) of RLS and the incidence (%) of BR were evaluated six times, starting in the reproductive stage B1 (first visible flower bud). A randomized complete block experimental design with a 4x4 factorial arrangement (fertilizers x dose), totaling 16 treatments were used. The disease progress was analyzed with the nonlinear Logistic and Gomperts models, obtaining the initial disease's epidemiological parameters (Y0) and progress rate (r). Results: Cotton plants fertilized with 100 kg N ha-1 of J. curcas seed cake and poultry manure with 100 and 200 kg N ha-1 showed an incidence between 16 and 21% of RLS. In contrast, plants fertilized with bovine manure presented the highest incidence of ramularia leaf spot (33%). Regarding factor B (dose), cotton plants fertilized with 50 kg N ha-1, showed a higher percentage of BR incidence, being different from those fertilized with the other doses. In the analysis of the interaction corresponding to the BR incidence, no response pattern was found in the doses for each fertilizer. No correlation was observed between the three health variables analyzed, finding probabilities between 0.002 and 0.892. In the temporal progress of RLS incidence, it was shown that fertilization with J. curcas seedcake and poultry manure was lower than the rest. In severity, the plants were fertilized by J. curcas seedcake concerning the rest. The progression curve of RLS severity temporarily increased similarly, observing that plants fertilized with higher doses reached a lower final proportion of the disease.Regarding the modeling of epidemics using the nonlinear Logistic and Gompertz models, the first model better represented the RLS, except for factor B, where none of the curves was significant. In the Logistic model, a lower amount of initial disease was found (Y0) of RLS, both in incidence (0.259) as in severity (0.081), in plants fertilized with J. curcas seed cake and poultry manure, compared to the rest. For the case of BR incidence, none of the nonlinear models used could be represented.Conclusions: Plants fertilized with 50 kg N ha-1, presented an incidence twice higher than those obtained with other fertilizers. The Logistic model better fits RLS, but no model was adapted to BR. Only the RLS epidemiological parameters were affected differently in this experiment compared to BR disease.

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General Description of Cotton

Cited by 6 publications

References 35 publications

Two common pitfalls in the analysis of water‐stable isotopologues with cryogenic vacuum extraction and cavity ring‐down spectroscopy

Two common pitfalls in the analysis of water‐stable isotopologues with cryogenic vacuum extraction and cavity ring‐down spectroscopy

Genome-wide characterization and expression analysis of Erf gene family in cotton

Ramularia leaf spot and Boll rot are affected differently by organic and inorganic nitrogen fertilization in cotton plants

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