Cassava root phenotyping for arsenic phytoremediation

1. The ingestion of cassava (Manihot esculenta Crantz) by rats increased the plasma thiocyanate concentration and reduced the thyroid iodine content and the plasma protein-bound iodine.2. Administration of increasing doses of thiocyanate raised the plasma thiocyanate concentration and reduced the thyroid iodine content and the plasma protein-bound iodine.3. In producing these effects, the daily ingestion of 10 g cassava root containing 1·6 mg cyanide was approximately equivalent to a daily intake of about 1–2 mg thiocyanate.4. These results suggest that the antithyroid action of cassava is the result of the production of thiocyanate by the rat from cyanide arising from the cyanogenic glucosides present in this food.

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The Value of Cassava Root Meal for Chicks ,

Poultry Science ◽

10.3382/ps.0460622 ◽

1967 ◽

Vol 46 (3) ◽

pp. 622-626 ◽

Cited By ~ 24

Author(s):

F.Q. Enriquez ◽

Ernest Ross

Keyword(s):

Cassava Root ◽

Cassava Root Meal

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Root Phenotyping for Drought Tolerance: A Review

Agronomy ◽

10.3390/agronomy8110241 ◽

2018 ◽

Vol 8 (11) ◽

pp. 241 ◽

Cited By ~ 32

Author(s):

Allah Wasaya ◽

Xiying Zhang ◽

Qin Fang ◽

Zongzheng Yan

Keyword(s):

Drought Tolerance ◽

Crop Yield ◽

Root Length ◽

Root Length Density ◽

Canopy Temperature ◽

Specific Root Length ◽

Root Traits ◽

Three Dimensions ◽

Invasive Approach ◽

Root Phenotyping

Plant roots play a significant role in plant growth by exploiting soil resources via the uptake of water and nutrients. Root traits such as fine root diameter, specific root length, specific root area, root angle, and root length density are considered useful traits for improving plant productivity under drought conditions. Therefore, understanding interactions between roots and their surrounding soil environment is important, which can be improved through root phenotyping. With the advancement in technologies, many tools have been developed for root phenotyping. Canopy temperature depression (CTD) has been considered a good technique for field phenotyping of crops under drought and is used to estimate crop yield as well as root traits in relation to drought tolerance. Both laboratory and field-based methods for phenotyping root traits have been developed including soil sampling, mini-rhizotron, rhizotrons, thermography and non-soil techniques. Recently, a non-invasive approach of X-ray computed tomography (CT) has provided a break-through to study the root architecture in three dimensions (3-D). This review summarizes methods for root phenotyping. On the basis of this review, it can be concluded that root traits are useful characters to be included in future breeding programs and for selecting better cultivars to increase crop yield under water-limited environments.

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Microbial protein synthesis and nitrogen metabolism in cows bred on tropical pasture and fed on cassava root and corn

Acta Scientiarum Animal Sciences ◽

10.4025/actascianimsci.v36i2.22161 ◽

2014 ◽

Vol 36 (2) ◽

pp. 185 ◽

Cited By ~ 2

Author(s):

Ádler Carvalho da Silva ◽

Mauro Pereira de Figueiredo ◽

Paulo Bonomo ◽

Mara Lúcia Albuquerque Pereira ◽

Yann Dos Santos Luz ◽

...

Keyword(s):

Protein Synthesis ◽

Nitrogen Metabolism ◽

Tropical Pasture ◽

Microbial Protein ◽

Microbial Protein Synthesis ◽

Cassava Root

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Effect of Harvest Time and Nitrogen Doses on Cassava Root Yield and Quality

Revista Brasileira de Ciência do Solo ◽

10.1590/18069657rbcs20150204 ◽

2017 ◽

Vol 41 (0) ◽

Cited By ~ 1

Author(s):

Natália Trajano de Oliveira ◽

Sandra Catia Pereira Uchôa ◽

José Maria Arcanjo Alves ◽

José de Anchieta Alves de Albuquerque ◽

Guilherme Silva Rodrigues

Keyword(s):

Harvest Time ◽

Root Yield ◽

Yield And Quality ◽

Cassava Root

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Cassava Root Necrosis Disease (CRND): A New Crop Disease Spreading in Western Democratic Republic of Congo and in Some Central African Countries

Journal of Agricultural Science ◽

10.5539/jas.v12n3p105 ◽

2020 ◽

Vol 12 (3) ◽

pp. 105

Author(s):

Bakelana Zeyimo ◽

Justin Pita ◽

Monde Godefroid ◽

Mahungu Nzola ◽

Lema Munseki ◽

...

Keyword(s):

Next Generation Sequencing ◽

Democratic Republic ◽

Democratic Republic Of Congo ◽

Next Generation ◽

Republic Of Congo ◽

Cassava Root ◽

Root Necrosis ◽

Next Generation Sequencing Ngs ◽

Generation Sequencing ◽

Brown Streak

Cassava is consumed in the Democratic Republic of Congo (DRC) as a staple food for the majority of the Congolese population. This crop is used in several forms: as fufu, chikwangue and pondu; cassava leaves are the most consumed vegetable in the country. In 2002, cassava root symptoms similar to cassava brown streak disease (CBSD) were reported for the first time in western DRC. PCR assays, using primers specific to Cassava brown streak virus (CBSV), failed to detect or identify any viral pathogens in diseased cassava samples from western DRC. Therefore, next generation sequencing (NGS) techniques were used as they are able to sequence full organism genomes and are widely used for the identification of pathogens responsible for new diseases. The main objective of this study was to identify the pathogens causing root necrosis in western DRC. Whatman®FTA™ cards were used to collect 12 cassava leaf samples from plants with symptoms indicative of very severe root necrosis, as well as two asymptomatic samples. These 12 samples were sent to Australia at the University of Western Australia in Perth for next generation sequencing (NGS) using the Illumina HiSeq platform. Additional bioinformatics tools included Geneious, CLC workbench, ParaKraken and Kaijou software for short DNA sequences. No viruses (including CBSV) were found in any of the DRC samples. These preliminary results confirm all the previous negative results obtained using PCR and CBSV primers. However, NGS analyses did reveal the presence of a number of bacterial and fungal taxa. These will require further investigation and tests such as the Koch Postulates, to establish their specific pathogenic role in cassava. This is the first scientific evidence that no currently known virus is responsible for the disease which had been referred to previously as ‘CBSD-like disease’. Consequently, the disease found in DRC cassava samples has been designated ‘Cassava Root Necrosis Disease’ or CRND.

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Effect of Slice Weight and Soaking Time on the Physico-Chemical Properties of Cassava Flour (Manihotesculentus) used for Bakery Products

Asian Food Science Journal ◽

10.9734/afsj/2021/v20i630305 ◽

2021 ◽

pp. 10-24

Author(s):

C. R. Abah ◽

C. N. Ishiwu ◽

J. E. Obiegbuna ◽

E. F. Okpalanma ◽

C. S. Anarado

Keyword(s):

Chemical Properties ◽

Process Variables ◽

Soaking Time ◽

Cassava Flour ◽

Baked Goods ◽

Cassava Root ◽

Physico Chemical ◽

Physical And Chemical ◽

And Chemical Properties

Quality cassava(Manihotesculentus, Crantz) flour is often influenced by process variables such as slice weight and soaking time which may affect its nutritional quality. In this study, the effect of process variables (slice weight and soaking time) on quality of cassava flour was carried out. Cassava root was peeled, washed and cut into varied sizes (25.86 - 54.14 g) and soaked at varied time (7.03 - 40.97 h). The proximate composition, physical and chemical properties of the flour were carried out using standard methods. The result in our findings showed that slice weight and soaking time had significant increase (p<0.05) on the proximate and physico-chemical properties of the flour.The amylose and amylopectin content of the flour increased with increasing soaking time while the hydrogen cyanide content decreased with increase in soaking time. Overall, the quality cassava flour displayed desirable properties for its incorporation into baked goods.

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