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Background and Aims: Aluminium (Al) resistance in common bean is known to be due to exudation of citrate from the root after a lag phase, indicating the induction of gene transcription and protein synthesis. The aims of this study were to identify Al-induced differentially expressed genes and to ...


Eticha, DZahn, MBremer, MYang, ZRangel Becerra, AFRao, Idupulapati M.Horst, Walter J.[Transcriptomic analysis reveals differential gene expression in response to aluminium in common bean (Phaseolus vulgaris) genotypes]Transcriptomic analysis reveals differential gene expression in response to aluminium in common bean (Phaseolus vulgaris) genotypes

Soil carbon distribution with depth, stable carbon isotope ratios in soil organic matter and their changes as a consequence of the presence of legume were studied in three 12-year-old tropical pastures (grass alone Brachiaria decumbens (C4), legume alone Pueraria phaseoloides (C3) and grass + l...


Rao, Idupulapati M.Ayarza, Miguel AngelThomas, Richard J.[The use of carbon isotope ratios to evaluate legume contribution to soil enhancement in tropical pastures]The use of carbon isotope ratios to evaluate legume contribution to soil enhancement in tropical pastures

Soil fertility replenishment is a critical factor that many farmers in the tropical American hillsides have to cope with to increase food crop production. The effect of three planted fallow systems (Calliandra houstoniana-CAL, Indigofera zollingeriana-IND, Tithonia diversifolia-TTH) and a crop ro...


Basamba, T.A.Barrios, E.Singh, B.R.Rao, Idupulapati M.[Impact of planted fallows and a crop rotation on nitrogen mineralization and phosphorus and organic matter fractions on a Colombian volcanic-ash soil]Impact of planted fallows and a crop rotation on nitrogen mineralization and phosphorus and organic matter fractions on a Colombian volcanic-ash soil

En la zona central cafetera de Colombia, en un suelo Pachic Melanudands medial isotérmico, se midió la actividad de arilsulfatasa en rizosfera de plátano Musa AAB, en tres sistemas de manejo agronómico (químico o convencional, tradicional y ecológico), cuatro profundidades (0-5, 5-10, 10-20 y 20-...


Bolaños Benavides, Martha M.Sánchez de Prager, MarinaRao, Idupulapati M.[Arilsulfatasa en la rizosfera de plátano, Musa AAB y relación con crecimiento, desarrollo y producción]Arilsulfatasa en la rizosfera de plátano, Musa AAB y relación con crecimiento, desarrollo y producción
Beebe, Stephen E.Rao, Idupulapati M.Blair, Matthew W.Acosta Gallegos, Jorge Alberto[Phenotyping common beans for adaptation to drought]Phenotyping common beans for adaptation to drought

In many low input agricultural systems, phosphorus (P) is one of the most limiting mineral nutrients for plant production. Although applying P fertilizer, if available, is the most performing practice, this should be accompanied by other measures. The use of genetically enhanced plants with impro...


Ramaekers, LRemans, RRao, Idupulapati M.Blair, Matthew W.Vanderleyden, J[Strategies for improving phosphorus acquisition efficiency of crop plants]Strategies for improving phosphorus acquisition efficiency of crop plants

Al resistance of signalgrass (Brachiaria decumbens Stapf cv Basilisk), a widely sown tropical forage grass, is outstanding compared with the closely related ruzigrass (Brachiaria ruziziensis Germain and Evrard cv Common) and Al-resistant genotypes of graminaceous crops such as wheat, triticale, a...


Wenzl, PeterPatino, GMChavez, Alba L.Mayer, Jorge EdgardRao, Idupulapati M.[The high level of aluminum resistance in signalgrass is not associated with known mechanism of external aluminum detoxification in root apices]The high level of aluminum resistance in signalgrass is not associated with known mechanism of external aluminum detoxification in root apices

Traditional breeding efforts are expected to be greatly enhanced through collaborative approaches incorporating functional, comparative and structural genomics. Potential benefits of combining genomic tools with traditional breeding have been a source of widespread interest and resulted in numero...


Ishitani, ManabuRao, Idupulapati M.Wenzl, PeterBeebe, Stephen E.Tohme, Joseph M.[Integration of genomics approach with traditional breeding towards improving abiotic stress adaptation: Drought and aluminum toxicity as case studies]Integration of genomics approach with traditional breeding towards improving abiotic stress adaptation: Drought and aluminum toxicity as case studies

The role of the intracellular distribution and binding state of aluminum (Al) in Al toxicity, using Al exchange and Al fractionation methodologies, were studied in two common bean (Phaseolus vulgaris L.) genotypes differing in Al resistance. These two genotypes are characterized by a similar init...


Rangel Becerra, AFRao, Idupulapati M.Horst, Walter J.[Intracellular distribution and binding state of aluminum in root apices of two common bean (Phaseolus vulgaris) genotypes in relation to Al toxicity]Intracellular distribution and binding state of aluminum in root apices of two common bean (Phaseolus vulgaris) genotypes in relation to Al toxicity
Gómez Carabali, ARao, Idupulapati M.Otero, TJ[Influence of fertilization, season, and forage species in presence of arbuscular mycorrhizae in a degraded andisoil of Colombia = Influencia de la fertilización, la época y la especie forajera en la presencia de micorriza arbuscular en un Andisol degradado de Colombia]Influence of fertilization, season, and forage species in presence of arbuscular mycorrhizae in a degraded andisoil of Colombia = Influencia de la fertilización, la época y la especie forajera en la presencia de micorriza arbuscular en un Andisol degradado de Colombia

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