The Experts below are selected from a list of 3126 Experts worldwide ranked by ideXlab platform
Hirofumi Saneoka - One of the best experts on this subject based on the ideXlab platform.
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salinity induced expression of hkt may be crucial for na exclusion in the leaf blade of Huckleberry solanum scabrum mill but not of eggplant solanum melongena l
Biochemical and Biophysical Research Communications, 2015Co-Authors: Dekoum V M Assaha, Akihiro Ueda, Ahmad Mohammad M Mekawy, Hirofumi SaneokaAbstract:Abstract Reduced Na + accumulation in the leaf blade is an important aspect of salinity tolerance and high affinity K + transporters (HKTs) are known to play a significant role in the process. Huckleberry and eggplant have previously been shown to display ‘excluder’ and ‘includer’ characteristics, respectively, under salt stress, but the underlying mechanisms have not been investigated. Here, we isolated the cDNA of the HKT homologs, Solanum scabrum HKT ( SsHKT ) from Huckleberry and Solanum melongena HKT ( SmHKT ) from eggplant, and analyzed their expressions in different tissues under salt stress. SsHKT expression was markedly induced in the root (28-fold) and stem (7-fold), with a corresponding increase in Na + accumulation of 52% and 29%, respectively. Conversely, eggplant accumulated 60% total Na + in the leaf blade, with a lower SmHKT expression level in the root (3-fold). Huckleberry also maintained a higher K + /Na + ratio in the leaf blade compared to eggplant, due to the reduction of its Na + concentration and unaltered K + concentration. Functional analysis demonstrated that SsHKT-mediated Na + influx inhibited yeast growth under Na + stress, and that SsHKT did not complement the growth of the K + uptake-deficient CY162 strain under K + -limiting conditions. These results suggest that the Na + accumulation characteristics of both plants are caused by the differential expression of HKT genes, with SsHKT exerting a greater control over the ability of Na + to reach the leaf blade in Huckleberry, than SmHKT does in eggplant.
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comparison of growth and mineral accumulation of two solanaceous species solanum scabrum mill Huckleberry and s melongena l eggplant under salinity stress
Soil Science and Plant Nutrition, 2013Co-Authors: Dekoum V M Assaha, Akihiro Ueda, Hirofumi SaneokaAbstract:AbstractSolanum scabrum Mill. (Huckleberry) is widespread in West, East and Central Africa, where it constitutes one of the most important leafy vegetables. However, the salinity tolerance of this crop has not yet been assessed. The objective of this study was to assess the response of Huckleberry to salinity stress in comparison with eggplant (S. melongena L.). Four-week-old seedlings of both species were subjected to two levels of salinity stress, 50 mM and 150 mM sodium chloride (NaCl), for 14 d. Leaf water potential of both species decreased with increasing salinity stress. This decrease was lower in Huckleberry than in eggplant. Total dry weight and total leaf area were also decreased by salinity, and the reductions of total dry weight and total leaf area under the 50 mM treatment compared with the control were 25 and 18% in Huckleberry, while they were 47 and 55% in eggplant, respectively. The increases in leaf sodium (Na) accumulation in the 50 and 150 mM treatments compared with the control were 6...
Xiaohong Wang - One of the best experts on this subject based on the ideXlab platform.
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Huckleberry Gold: A Specialty Market Potato Cultivar with Purple-Skin, Yellow-Flesh, High Tuber Antioxidants, and Resistance to Potato Cyst Nematode (H1) and Potato virus X (Nb and Rx1)
American Journal of Potato Research, 2014Co-Authors: Jonathan L. Whitworth, Richard G. Novy, Jeffrey C. Stark, Stephen L. Love, Michael K. Thornton, Brian A. Charlton, Solomon Yilma, N. Richard Knowles, Mark J. Pavek, Xiaohong WangAbstract:Huckleberry Gold is a purple-skin, yellow-flesh fresh market cultivar with similar culinary qualities to the market standard Yukon Gold. It has lower specific gravity, sucrose and vitamin C content, but a significantly higher level of tuber antioxidants than Yukon Gold. Notable disease resistant characteristics are Potato virus X resistance based on the presence of molecular markers for the PVX resistance genes, Nb and Rx1 . In addition it also has the H1 gene present which confers resistance to the potato cyst nematode, Globodera rostochiensis, which has been confirmed by bioassay to pathotype Ro1. The size profile of Huckleberry Gold is smaller than Yukon Gold, allowing a better fit into specialty markets that are geared to smaller size for fresh use. Huckleberry Gold represents the first purple-skin, yellow-flesh cultivar to come from the Northwest (Tri-State) Potato Variety Development program. Huckleberry Gold es una variedad de piel morada, pulpa amarilla para mercado fresco, con cualidades culinarias similares a las comunes de mercado de Yukon Gold. Tiene un contenido más bajo de gravedad específica, sacarosa y vitamina C, pero un nivel significativamente más alto de antioxidantes de tubérculo que Yukon Gold. Características notables de resistencia a enfermedades son la resistencia al virus X de la papa, con base en la presencia de marcadores moleculares para los genes de resistencia al PVX, Nb y Rx1. Además, también tiene el gen H1, que le confiere resistencia al nematodo de quiste de la papa, Globodera rostochiensis , que ha sido confirmado con un bioensayo al patotipo Ro1. El perfil del tamaño de Huckleberry Gold es más pequeño que el de Yukon Gold, permitiendo un mejor ajuste en los mercados de especialidad que están diseñados a tamaños más chicos para uso en fresco. Huckleberry Gold representa la primera variedad de piel morada, pulpa amarilla, proveniente del Programa Triestatal de Desarrollo de Variedades de Papa de la Región del Pacífico Noroccidental.
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Huckleberry gold a specialty market potato cultivar with purple skin yellow flesh high tuber antioxidants and resistance to potato cyst nematode h1 and potato virus x nb and rx1
American Journal of Potato Research, 2014Co-Authors: Jonathan L. Whitworth, Richard G. Novy, Jeffrey C. Stark, Stephen L. Love, Michael K. Thornton, Brian A. Charlton, Solomon Yilma, Mark J. Pavek, Richard N Knowles, Xiaohong WangAbstract:Huckleberry Gold is a purple-skin, yellow-flesh fresh market cultivar with similar culinary qualities to the market standard Yukon Gold. It has lower specific gravity, sucrose and vitamin C content, but a significantly higher level of tuber antioxidants than Yukon Gold. Notable disease resistant characteristics are Potato virus X resistance based on the presence of molecular markers for the PVX resistance genes, Nb and Rx1. In addition it also has the H1 gene present which confers resistance to the potato cyst nematode, Globodera rostochiensis, which has been confirmed by bioassay to pathotype Ro1. The size profile of Huckleberry Gold is smaller than Yukon Gold, allowing a better fit into specialty markets that are geared to smaller size for fresh use. Huckleberry Gold represents the first purple-skin, yellow-flesh cultivar to come from the Northwest (Tri-State) Potato Variety Development program.
Dekoum V M Assaha - One of the best experts on this subject based on the ideXlab platform.
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salinity induced expression of hkt may be crucial for na exclusion in the leaf blade of Huckleberry solanum scabrum mill but not of eggplant solanum melongena l
Biochemical and Biophysical Research Communications, 2015Co-Authors: Dekoum V M Assaha, Akihiro Ueda, Ahmad Mohammad M Mekawy, Hirofumi SaneokaAbstract:Abstract Reduced Na + accumulation in the leaf blade is an important aspect of salinity tolerance and high affinity K + transporters (HKTs) are known to play a significant role in the process. Huckleberry and eggplant have previously been shown to display ‘excluder’ and ‘includer’ characteristics, respectively, under salt stress, but the underlying mechanisms have not been investigated. Here, we isolated the cDNA of the HKT homologs, Solanum scabrum HKT ( SsHKT ) from Huckleberry and Solanum melongena HKT ( SmHKT ) from eggplant, and analyzed their expressions in different tissues under salt stress. SsHKT expression was markedly induced in the root (28-fold) and stem (7-fold), with a corresponding increase in Na + accumulation of 52% and 29%, respectively. Conversely, eggplant accumulated 60% total Na + in the leaf blade, with a lower SmHKT expression level in the root (3-fold). Huckleberry also maintained a higher K + /Na + ratio in the leaf blade compared to eggplant, due to the reduction of its Na + concentration and unaltered K + concentration. Functional analysis demonstrated that SsHKT-mediated Na + influx inhibited yeast growth under Na + stress, and that SsHKT did not complement the growth of the K + uptake-deficient CY162 strain under K + -limiting conditions. These results suggest that the Na + accumulation characteristics of both plants are caused by the differential expression of HKT genes, with SsHKT exerting a greater control over the ability of Na + to reach the leaf blade in Huckleberry, than SmHKT does in eggplant.
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comparison of growth and mineral accumulation of two solanaceous species solanum scabrum mill Huckleberry and s melongena l eggplant under salinity stress
Soil Science and Plant Nutrition, 2013Co-Authors: Dekoum V M Assaha, Akihiro Ueda, Hirofumi SaneokaAbstract:AbstractSolanum scabrum Mill. (Huckleberry) is widespread in West, East and Central Africa, where it constitutes one of the most important leafy vegetables. However, the salinity tolerance of this crop has not yet been assessed. The objective of this study was to assess the response of Huckleberry to salinity stress in comparison with eggplant (S. melongena L.). Four-week-old seedlings of both species were subjected to two levels of salinity stress, 50 mM and 150 mM sodium chloride (NaCl), for 14 d. Leaf water potential of both species decreased with increasing salinity stress. This decrease was lower in Huckleberry than in eggplant. Total dry weight and total leaf area were also decreased by salinity, and the reductions of total dry weight and total leaf area under the 50 mM treatment compared with the control were 25 and 18% in Huckleberry, while they were 47 and 55% in eggplant, respectively. The increases in leaf sodium (Na) accumulation in the 50 and 150 mM treatments compared with the control were 6...
Jonathan L. Whitworth - One of the best experts on this subject based on the ideXlab platform.
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Huckleberry Gold: A Specialty Market Potato Cultivar with Purple-Skin, Yellow-Flesh, High Tuber Antioxidants, and Resistance to Potato Cyst Nematode (H1) and Potato virus X (Nb and Rx1)
American Journal of Potato Research, 2014Co-Authors: Jonathan L. Whitworth, Richard G. Novy, Jeffrey C. Stark, Stephen L. Love, Michael K. Thornton, Brian A. Charlton, Solomon Yilma, N. Richard Knowles, Mark J. Pavek, Xiaohong WangAbstract:Huckleberry Gold is a purple-skin, yellow-flesh fresh market cultivar with similar culinary qualities to the market standard Yukon Gold. It has lower specific gravity, sucrose and vitamin C content, but a significantly higher level of tuber antioxidants than Yukon Gold. Notable disease resistant characteristics are Potato virus X resistance based on the presence of molecular markers for the PVX resistance genes, Nb and Rx1 . In addition it also has the H1 gene present which confers resistance to the potato cyst nematode, Globodera rostochiensis, which has been confirmed by bioassay to pathotype Ro1. The size profile of Huckleberry Gold is smaller than Yukon Gold, allowing a better fit into specialty markets that are geared to smaller size for fresh use. Huckleberry Gold represents the first purple-skin, yellow-flesh cultivar to come from the Northwest (Tri-State) Potato Variety Development program. Huckleberry Gold es una variedad de piel morada, pulpa amarilla para mercado fresco, con cualidades culinarias similares a las comunes de mercado de Yukon Gold. Tiene un contenido más bajo de gravedad específica, sacarosa y vitamina C, pero un nivel significativamente más alto de antioxidantes de tubérculo que Yukon Gold. Características notables de resistencia a enfermedades son la resistencia al virus X de la papa, con base en la presencia de marcadores moleculares para los genes de resistencia al PVX, Nb y Rx1. Además, también tiene el gen H1, que le confiere resistencia al nematodo de quiste de la papa, Globodera rostochiensis , que ha sido confirmado con un bioensayo al patotipo Ro1. El perfil del tamaño de Huckleberry Gold es más pequeño que el de Yukon Gold, permitiendo un mejor ajuste en los mercados de especialidad que están diseñados a tamaños más chicos para uso en fresco. Huckleberry Gold representa la primera variedad de piel morada, pulpa amarilla, proveniente del Programa Triestatal de Desarrollo de Variedades de Papa de la Región del Pacífico Noroccidental.
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Huckleberry gold a specialty market potato cultivar with purple skin yellow flesh high tuber antioxidants and resistance to potato cyst nematode h1 and potato virus x nb and rx1
American Journal of Potato Research, 2014Co-Authors: Jonathan L. Whitworth, Richard G. Novy, Jeffrey C. Stark, Stephen L. Love, Michael K. Thornton, Brian A. Charlton, Solomon Yilma, Mark J. Pavek, Richard N Knowles, Xiaohong WangAbstract:Huckleberry Gold is a purple-skin, yellow-flesh fresh market cultivar with similar culinary qualities to the market standard Yukon Gold. It has lower specific gravity, sucrose and vitamin C content, but a significantly higher level of tuber antioxidants than Yukon Gold. Notable disease resistant characteristics are Potato virus X resistance based on the presence of molecular markers for the PVX resistance genes, Nb and Rx1. In addition it also has the H1 gene present which confers resistance to the potato cyst nematode, Globodera rostochiensis, which has been confirmed by bioassay to pathotype Ro1. The size profile of Huckleberry Gold is smaller than Yukon Gold, allowing a better fit into specialty markets that are geared to smaller size for fresh use. Huckleberry Gold represents the first purple-skin, yellow-flesh cultivar to come from the Northwest (Tri-State) Potato Variety Development program.
Akihiro Ueda - One of the best experts on this subject based on the ideXlab platform.
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salinity induced expression of hkt may be crucial for na exclusion in the leaf blade of Huckleberry solanum scabrum mill but not of eggplant solanum melongena l
Biochemical and Biophysical Research Communications, 2015Co-Authors: Dekoum V M Assaha, Akihiro Ueda, Ahmad Mohammad M Mekawy, Hirofumi SaneokaAbstract:Abstract Reduced Na + accumulation in the leaf blade is an important aspect of salinity tolerance and high affinity K + transporters (HKTs) are known to play a significant role in the process. Huckleberry and eggplant have previously been shown to display ‘excluder’ and ‘includer’ characteristics, respectively, under salt stress, but the underlying mechanisms have not been investigated. Here, we isolated the cDNA of the HKT homologs, Solanum scabrum HKT ( SsHKT ) from Huckleberry and Solanum melongena HKT ( SmHKT ) from eggplant, and analyzed their expressions in different tissues under salt stress. SsHKT expression was markedly induced in the root (28-fold) and stem (7-fold), with a corresponding increase in Na + accumulation of 52% and 29%, respectively. Conversely, eggplant accumulated 60% total Na + in the leaf blade, with a lower SmHKT expression level in the root (3-fold). Huckleberry also maintained a higher K + /Na + ratio in the leaf blade compared to eggplant, due to the reduction of its Na + concentration and unaltered K + concentration. Functional analysis demonstrated that SsHKT-mediated Na + influx inhibited yeast growth under Na + stress, and that SsHKT did not complement the growth of the K + uptake-deficient CY162 strain under K + -limiting conditions. These results suggest that the Na + accumulation characteristics of both plants are caused by the differential expression of HKT genes, with SsHKT exerting a greater control over the ability of Na + to reach the leaf blade in Huckleberry, than SmHKT does in eggplant.
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comparison of growth and mineral accumulation of two solanaceous species solanum scabrum mill Huckleberry and s melongena l eggplant under salinity stress
Soil Science and Plant Nutrition, 2013Co-Authors: Dekoum V M Assaha, Akihiro Ueda, Hirofumi SaneokaAbstract:AbstractSolanum scabrum Mill. (Huckleberry) is widespread in West, East and Central Africa, where it constitutes one of the most important leafy vegetables. However, the salinity tolerance of this crop has not yet been assessed. The objective of this study was to assess the response of Huckleberry to salinity stress in comparison with eggplant (S. melongena L.). Four-week-old seedlings of both species were subjected to two levels of salinity stress, 50 mM and 150 mM sodium chloride (NaCl), for 14 d. Leaf water potential of both species decreased with increasing salinity stress. This decrease was lower in Huckleberry than in eggplant. Total dry weight and total leaf area were also decreased by salinity, and the reductions of total dry weight and total leaf area under the 50 mM treatment compared with the control were 25 and 18% in Huckleberry, while they were 47 and 55% in eggplant, respectively. The increases in leaf sodium (Na) accumulation in the 50 and 150 mM treatments compared with the control were 6...