Sugarcane Water Stress Tolerance Mechanisms and Its Implications on Developing Biotechnology Solutions

Ferreira, Thaís Helena Silva; Tsunada, Max Seiji; Bassi, D.; Araújo, Pedro; Mattiello, Lúcia; Guidelli, Giovanna Vieira; Righetto, Germanna Lima; Gonçalves, Vanessa R.; Lakshmanan, Prakash; Menossi, Marcelo

doi:10.3389/fpls.2017.01077

Cited by 154 publications

(145 citation statements)

References 210 publications

(329 reference statements)

Supporting

Mentioning

121

Contrasting

Unclassified

Order By: Relevance

“…A tolerância de variedades de cana-de-açúcar ao estresse hídrico pode estar relacionada à herança genética das variedades, em que genes estariam associados à função adaptativa à privação de água em ambientes de reduzida umidade (NERKAR et al, 2018) e às respostas bioquímicas do sistema antioxidante enzimático, possibilitando que tais variedades tolerantes apresentem sistemas mais eficiente em condições de estresse (BOARETTO et al, 2014). Além destes mecanismos, Ferreira et al (2017) acrescentam a estratégia da cultura em manter alto estado de hidratação celular por meio de baixa condutância estomática durante a condição de estresse hídrico.…”

Section: Discussionunclassified

Variedades De Cana-De-Açúcar Submetidas a Diferentes Lâminas De Reposição Hídrica Por Gotejamento Subsuperficial

Oliveira

Braga

2019

EnergAgric

View full text Add to dashboard Cite

RESUMO:A região semiárida brasileira apresenta grande potencial de produção de cana-deaçúcar. Contudo, verifica-se que existem oscilações na produção devido à baixa e irregular disponibilidade hídrica. O objetivo deste estudo foi avaliar o comportamento de variedades de canade-açúcar irrigadas por gotejamento subsuperficial submetidas a diferentes lâminas de irrigação. O experimento foi conduzido no Campo Experimental de Bebedouro, na Embrapa Semiárido, em Petrolina, PE. Foram realizadas análises de produtividade e de qualidade tecnológica do caldo. As variedades com maior tolerância ao déficit hídrico foram RB92579 e RB961003, pois alcançam máxima produtividade utilizando-se menor lâmina de reposição hídrica, em torno de 80% da ETc. A qualidade tecnológica do caldo apontou diferenças no °Brix e na porcentagem bruta de açúcares das variedades que reduziram em função do aumento da reposição hídrica. Contudo, estas diferenças não foram limitantes à qualidade tecnológica. Sendo assim, o cultivo das variedades RB92579 e RB961003 sob menor lâmina de reposição hídrica pode ser recomendado, pois as mesmas atingem alta produtividade e mantém a qualidade tecnológica do caldo.Palavras-chave: biomassa, irrigação, estresse hídrico, regiões semiáridas. SUGARCANE VARIETIES SUBMITTED TO DIFFERENT WATER REPLENISHMENT DEPTHS BY SUBSURFACE DRIPABSTRACT: Brazilian semi-arid region presents great potential for sugarcane production. However, due mainly to low and irregular water availability, there are fluctuations in production. This study proposed to evaluate the performance of sugarcane varieties irrigated by subsurface drip, submitted to different water replenishment depths. The experiment was carried out at Campo Experimental de Bebedouro, belonging to Embrapa Semiárido, Petrolina, PE, Brazil. Productivity and technological quality of sugarcane juice analysis were performed. The varieties with higher tolerance to water deficit were RB92579 and RB961003, which reached maximum productivity using lower water replenishment depths of ETc, around 80%. Technological quality of sugarcane juice showed differences in °Brix and raw sugar percentage of varieties that reduced due to water replacement depths increasing. However, these differences were not limiting to the technological quality of sugarcane juice. In summary, the cultivation of RB961003 and RB92579 cultivars under lower water replenishment depth can be recommended, because they maintain the technological quality of sugarcane juice.

show abstract

Section: Discussionunclassified

Variedades De Cana-De-Açúcar Submetidas a Diferentes Lâminas De Reposição Hídrica Por Gotejamento Subsuperficial

Oliveira

Braga

2019

EnergAgric

View full text Add to dashboard Cite

show abstract

“…These findings may be explained by the role of Cauliflower Mosaic Virus 35S (CaMV 35S) promoter simultaneously in transgenic tobacco 18B1. CaMV 35S promoter is the most commonly constitutive, not tissue-and metal-specific promoter in plant biotechnology which has been successfully used to drive high levels of transgene expression (Ferreira et al, 2017). Plants in general have a range of potential mechanisms which might be involved in the heavy metal detoxification and thus confer a heavy metal tolerance property.…”

Section: Discussionmentioning

confidence: 99%

Accumulation of cadmium (Cd) in T1 transgenic tobacco seedlings expressing metallothionein gene from Eleusine indica

et al. 2019

View full text Add to dashboard Cite

Cadmium (Cd) contamination of urban and agricultural soils is toxic to humans, animals and may cause negative effects on plant growth and crop production. The existing conventional methods are found to be not efficient to remove Cd from contaminated soil. The present experiment reports the analysis of nine T1 lines of transgenic tobacco carrying metallothionein gene (eiMT1) from Eleusine indica, with potential for high efficiency to remediate Cd in contaminated soils. Thirty-days old tobacco plants were treated with different concentrations of CdNO3 (0, 50, 100 and, 150 µmol) for seven days and the accumulation of Cd in the whole seedling was quantitatively determined by using atomic absorption spectrometer (AAS). All transgenic tobacco lines showed greater tolerance and accumulated higher level of Cd than the wild type with lines 18D, 20D1 and, 18C were among the highest (678.7, 623.0 and 611.9 mgkg-1 Cd, respectively). Meanwhile, transgenic tobacco lines 18B1 and 20D1 showed higher expression of eiMT1 gene. These results suggest that the cadmium accumulation in transgenic tobacco did not strictly associate with the expression level of eiMT1 gene. However, expression of eiMT1 greatly required for higher accumulation of Cd in transgenic tobacco seedling.

show abstract

“…Therefore, identifying and exploiting these tolerance mechanisms are fundamental to the development of new crop varieties resistant to drought stress. The overexpression of stress-tolerant genes using genetic engineering is one suitable approach to the development of drought-tolerant cultivars (Ferreira et al, 2017). It has been shown that the overexpression of a specific transcription factor (TF) involved in drought stress responses, dehydration responsive element binding (DREB2A) is able to improve drought tolerance in different plant species, including sugarcane, and it is highly induced under dehydration conditions (Bihani, Char, & Bhargava, 2011;Chen, Meng, Zhang, Xia, & Wang, 2008;Morran et al, 2011;Nakashima, Yamaguchi-Shinozaki, & Shinozaki, 2014;Qin et al, 2007;Reis et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Field evaluation of AtDREB2A CA overexpressing sugarcane for drought tolerance

Souza

Oliveira

Vinecky

et al. 2019

J Agronomy Crop Science

View full text Add to dashboard Cite

Climate change is undoubtedly altering the atmosphere, occasioning extreme temperatures that can cause weather calamities such as droughts and floods. Among the major constraints limiting crop production, drought is one of the most important.Sugarcane (Saccharum spp. hybrid) is considered an important economic crop not only for sugar production, but also for ethanol generation, serving as an expandable green alternative to crude oil use. To take advantage of the use of sugarcane as renewable source for bioethanol production, it is important to increase its productivity without increasing land use, which includes cultivation under hostile conditions, such as water-limited environments. Previously, we demonstrated that stress-inducible overexpression of the transcription factor AtDREB2A CA conferred drought tolerance in sugarcane subjected to water deficit under greenhouse conditions. In the present work, the AtDREB2A CA transgenic sugarcane lines were evaluated in the field in two representative seasonally dry regions of Brazil. The results demonstrated that the AtDREB2A CA sugarcane lines presented higher yield and productivity when compared to non-transformed plants under drought, representing a suitable strategy for the development of new drought-tolerant cultivars.

show abstract

Sugarcane Water Stress Tolerance Mechanisms and Its Implications on Developing Biotechnology Solutions

Cited by 154 publications

References 210 publications

Variedades De Cana-De-Açúcar Submetidas a Diferentes Lâminas De Reposição Hídrica Por Gotejamento Subsuperficial

Variedades De Cana-De-Açúcar Submetidas a Diferentes Lâminas De Reposição Hídrica Por Gotejamento Subsuperficial

Accumulation of cadmium (Cd) in T1 transgenic tobacco seedlings expressing metallothionein gene from Eleusine indica

Field evaluation of AtDREB2A CA overexpressing sugarcane for drought tolerance

Contact Info

Product

Resources

About