Root growth, aerenchyma development, and oxygen transport in rice genotypes subjected to drought and waterlogging

Suralta, Roel Rodriguez; Yamauchi, Akira

doi:10.1016/j.envexpbot.2008.01.004

Cited by 99 publications

(60 citation statements)

References 36 publications

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“…The observed reduction in tiller production under stress could be due to limited assimilates produced from inhibited photosynthesis which is directly caused by drought [17] (Mostajeran and Rahimi-Eichi, 2009) while the significant differences in rate of increase in plant height can be due to differences in cell elongation, internode elongation and number of nodes, the traits shown to be affected by drought and genotypes [18] (Guevarra and Chang, 1965). Furthermore, the reduction in available water or the increase in stress was shown to reduce the rate of growth of stems, thereby affecting plant height [19] Suralta and Yamauchi, 2008). In drought stress, the reduction in shoot fresh and dry matter can be attributed to the reduction of leaf area and slow photosynthesis rate [22] [23] (Sinaki et al, 2007;Zubaer et al, 2007).…”

Section: Experiments 1: Response Of Selected High Biomass Rice To Diffmentioning

confidence: 99%

“…Like the shoot, root growth is also affected by limited water supply. Reference [21] reported that the nodal root production was reduced in drought condition and this influenced the formation of root biomass. In soils which are water stressed, there is reduced oxygen supply, physical barrier like hardpans and poor adaptation of roots to aerobic condition that limit exploitation of deeper soil layers hence reducing root biomass [24] (Samson and Wade, 1998).…”

Section: Experiments 1: Response Of Selected High Biomass Rice To Diffmentioning

confidence: 99%

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Evaluation and Selection of High Biomass Rice (<i>Oryza sativa L.</i>) for Drought Tolerance

Kondhia¹,

Tabien²,

Ibrahim³

2015

AJPS

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Biomass production is important in increasing yield not only for food but also for bio-fuel production that depends on high dry matter. Due to climate change, occurrence of drought may be prevalent and this affects both grain and biomass yields in crops including rice. The objectives of this study were to determine the performance of selected high biomass breeding rice lines to different levels of drought and use several drought tolerance indices to identify best genotypes that could be grown in unfavorable water stressed areas. A rainfed and flooded trial was conducted to evaluate 20 selected breeding lines for biomass production and ten entries from the same set were grown in the greenhouse at three different field capacities (FC, 50%, 75%, 100%). Most of the genotypes performed well under non-stressed conditions (flooded and 100% FC) but some genotypes performed well in water stressed condition. The plants had lower plant height, tiller plant −1 , and total biomass at maturity under rainfed conditions and their flowering was delayed compared to flooded conditions. In the greenhouse, water stress slowed the rate of increase in height, and produced lower shoot and root weight, percent dry matter (% DM) and total biomass. However, drought enhanced the rate of tiller production. Two genotypes were found to more tolerant to drought stress and could be used for cultivation under water stress condition to get optimum biomass yields. These genotypes can be identified using drought tolerance indices, particularly stress tolerance index (STI), geometric mean productivity (GMP), mean productivity (MP) and harmonic mean (HARM), as these have a similar ability to separate drought sensitive and tolerant genotypes. Genetic and molecular analyses, and detailed characterization of these genotypes will help understand their inheritance pattern and the number of genes controlling the traits and determine specific leaves and root traits important in developing high biomass rice.

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Section: Experiments 1: Response Of Selected High Biomass Rice To Diffmentioning

confidence: 99%

Section: Experiments 1: Response Of Selected High Biomass Rice To Diffmentioning

confidence: 99%

Evaluation and Selection of High Biomass Rice (<i>Oryza sativa L.</i>) for Drought Tolerance

Kondhia¹,

Tabien²,

Ibrahim³

2015

AJPS

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show abstract

“…On the other hand, the aerobic genotypes exhibited almost the same ability for shoot dry matter production as irrigated-lowland genotypes under a waterlogged condition because of their similar ability to enhance root aerenchyma that contributed to the maintenance of root growth (Suralta and Yamauchi, 2008).…”

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confidence: 99%

Genotypic Variations in Responses of Lateral Root Development to Transient Moisture Stresses in Rice Cultivars

Suralta

Inukai

Yamauchi

2008

Plant Production Science

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“…Bajo inundación también se incrementa la proporción de raíces nodales con aerénquima, facilitando la difusión de O 2 y la elongación de la raíz (Suralta y Yamauchi, 2008). Las especies con alta porosidad en la raíz forman raíces más profundas que mejoran la exploración del suelo durante la inundación y ofrecen una ventaja competitiva en el crecimiento, al finalizar el periodo de inundación (Colmer, 2003).…”

Section: Adaptaciones Morfológicas Y Anatómicasunclassified

“…El aerénquima se desarrolla mejor en raíces localizadas en el agua, arriba de la superficie del suelo que en raíces ubicadas dentro del suelo (Polthanee et al, 2008). Factores morfológicos y anatómicos como la formación de aerénquima en las raíces y el desarrollo de raí-ces adventicias son considerados como una de las principales respuestas de las plantas para sobrevivir a largos periodos de anoxia (Aschi-Smiti, 2003;Malik et al, 2003;Saqib et al, 2005;Mano et al, 2006;Suralta y Yamauchi, 2008).…”

Section: Adaptaciones Morfológicas Y Anatómicasunclassified

Respuesta de las plantas a estrés por inundación. Una revisión

Jiménez¹,

Moreno²,

Magnitskiy³

2013

Rev. Colomb. Cienc. Hortic

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Plantulas de tomate.Foto: Álvarez-Herrera. Respuesta de las plantas a estrés por inundación. Una revisiónPlant responses to stress due to flooding. A review Corte transversal de raíz nodal de Brachiaria humidicola a 21 días de inundación. Foto: J.A. Cardoso A. RESUMENLa inundación tiene un efecto negativo sobre la mayoría de plantas terrestres debido a que reduce su crecimiento e induce la senescencia. La deficiencia de oxígeno, efecto principal de la inundación, cambia el metabolismo de la planta induciendo la vía anaeróbica o fermentativa como mecanismo alterno, aunque poco eficiente para la producción de energía. Igualmente el déficit de oxígeno aumenta la producción de especies reactivas de oxígeno (ROS), tanto en la mitocondria como en el cloroplasto. Como respuesta al incremento de ROS hay un aumento en el sistema de defensa antioxidante de la planta, el cual es considerado, junto con la inducción de la vía fermentativa, como una respuesta a corto plazo. Cuando la planta está sometida a largos periodos de inundación se presentan, adicionalmente, cambios morfológicos, como la formación de aerén-quima, los cuales son considerados respuestas a largo plazo. En este artículo se revisan las respuestas, tanto a corto como a largo plazo, de las plantas a la condición de estrés hídrico por inundación.Palabras clave adicionales: respiración anaeróbica, defensa antioxidante, aerénquima, estrés abiótico. ABSTRACTFlooding has a negative effect on the majority of terrestrial plants due to a reduction of growth and the resulting senescence. Oxygen deficiency, the main effect of flooding, can change plant metabolism, inducing the alternative anaerobic pathway, an inefficient mechanism for energy production. Equally, the oxygen deficit increases the production of reactive oxygen species (ROS) both in chloroplasts and mitochondria. In response to increasing ROS, plants see a rise in their antioxidant defense system, which is considered, along with the fermentation pathway, a short-term response. When plants are submitted to long periods of flooding, they present morphological changes, such as aerenchyma formation, which is considered a longterm response. In this article, we review the short and long term responses of plants to water stress caused by flooding.

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Root growth, aerenchyma development, and oxygen transport in rice genotypes subjected to drought and waterlogging

Cited by 99 publications

References 36 publications

Evaluation and Selection of High Biomass Rice (<i>Oryza sativa L.</i>) for Drought Tolerance

Evaluation and Selection of High Biomass Rice (<i>Oryza sativa L.</i>) for Drought Tolerance

Genotypic Variations in Responses of Lateral Root Development to Transient Moisture Stresses in Rice Cultivars

Respuesta de las plantas a estrés por inundación. Una revisión

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Root growth, aerenchyma development, and oxygen transport in rice genotypes subjected to drought and waterlogging

Cited by 99 publications

References 36 publications

Evaluation and Selection of High Biomass Rice (&lt;i&gt;Oryza sativa L.&lt;/i&gt;) for Drought Tolerance

Evaluation and Selection of High Biomass Rice (&lt;i&gt;Oryza sativa L.&lt;/i&gt;) for Drought Tolerance

Genotypic Variations in Responses of Lateral Root Development to Transient Moisture Stresses in Rice Cultivars

Respuesta de las plantas a estrés por inundación. Una revisión

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Evaluation and Selection of High Biomass Rice (<i>Oryza sativa L.</i>) for Drought Tolerance

Evaluation and Selection of High Biomass Rice (<i>Oryza sativa L.</i>) for Drought Tolerance