Small heat shock proteins genes are differentially expressed in distinct varieties of common bean

Simões‐Araújo, Jean Luiz; Rumjanek, Norma Gouvêa; Margis‐Pinheiro, Márcia

doi:10.1590/s1677-04202003000100005

Cited by 81 publications

(30 citation statements)

References 43 publications

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“…1). High temperature frequently associated with reduced water availability (Simoes-Araujo et al 2003) that caused a greater reduction in leaf water potential and turgor potential (Anon et al 2004). Leaf water potential and its components were changed upon exposure to heat stress (Wahid and Close 2007).…”

Section: Discussionmentioning

confidence: 99%

Physiological response of late sown wheat to exogenous application of silicon

Sattar¹,

Cheema

Abbas³

et al. 2017

Cereal Research Communications

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Late planting of wheat in rice-wheat cropping system is perhaps one of the major factors responsible for low crop yield. The main cause of reduction in yield is due to supra-optimal conditions during the reproductive growth. High temperature during reproductive phase induces changes in water relations, decreases photosynthetic rate, and transpiration rate, stomatal conductance and antioxidative defence system. Silicon (Si), being a beneficial nutrient not only provides significant benefits to plants growth and development but may also mitigate the adversities of high temperature. A field study was conducted at Agronomic Research Area of University of Agriculture; Faisalabad, Pakistan to assess the performance of late sown wheat with the soil applied Si. Experiment was comprised of three sowing dates; 10 th Nov (normal), 10 th Dec (late), 10 th Jan (very late) with two wheat varieties (Sehar-2006 and Faisalabad-2008), and an optimized dose of Si (100 mg per kg soil), applied at different growth stages (control, crown root, booting and heading). Results indicated that 100 mg Si per kg soil at heading stage offset the negative impact of high temperature and induced heat tolerance in late sown wheat. Silicon application improved 34% relative water contents (RWC), 30% water potential, 26% osmotic potential, 23% turgor potential and 21% photosynthetic rate, and 32% transpiration rate and 20% stomatal conductance in wheat flag leaf than control treatment. Further it was observed that Si application preventing the oxidative membrane damage due to enhanced activity of antioxidant enzymes, i.e. 35% superoxide dismutase (SOD) and 38% catalase (CAT). In conclusion results of this field study demonstrated that soil applied Si (100 mg per kg soil) at heading stage enhanced all physiological attributes of wheat flag leaf. Which in turn ameliorated the adverse effects of high temperature in late sown wheat. Study depicted that Si can be used as a potential nutrient in order to mitigate the losses induced by high temperature stress.

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Section: Discussionmentioning

confidence: 99%

Physiological response of late sown wheat to exogenous application of silicon

Sattar¹,

Cheema

Abbas³

et al. 2017

Cereal Research Communications

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“…High temperature is a major environmental stress affecting the growth and productivity of fruit vegetable crops grown in protected systems in summer seasons. It induces oxidative stress, which can lead to the inhibition of photosynthesis (Karim et al, 1999), disruption of cell membranes (Marcum, 1998;Gulen and Eris, 2004), hormonal changes (Maestri et al, 2002), and reduced water availability (Simoes-Araujo et al, 2003). The oxidative stress induced by ROS due to environmental stresses, including high temperature, is the major cause of injury in plants (Asada, 1999;Bowler et al, 1992).…”

Section: Discussionmentioning

confidence: 99%

Induction of Thermotolerance and Activation of Antioxidant Enzymes in H2O2 Pre-applied Leaves of Cucumber and Tomato Seedlings

Kang¹,

Kang²,

Kang³

et al. 2009

J. Japan. Soc. Hort. Sci.

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“…Under field conditions, water shortage often occurs concurrently with high air temperature (say > 30°C in the low to mid-latitudes) and are threat limitations to plant growth (Farooq et al, 2012;Mittler, 2006;Simoes-Araujo et al, 2003; Vahid et al, 2007) and sustainable agriculture (Ahuja et al, 2010). Increasing frequency of water deficits, events of heat waves, and intra-and inter-seasonal variations as well as an increase in the atmospheric CO 2 concentration will add another layer of complexity to the effects of drought and heat stresses (Sekhon et al, 2010;Vadez et al, 2011; Vahid et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Model simulations suggest that an average increase in temperature of up to 2.5-5.4°C can be expected by year 2100 coupled with a decrease in precipitation of about 15% (Ciscar, 2012;Tadross et al, 2007). Under climate of south-eastern Australia, it was predicted that every 1°C increase in air temperature will cause a 1.5°C increase of surface soil temperature (Ooi et al, 2012).Under field conditions, water shortage often occurs concurrently with high air temperature (say > 30°C in the low to mid-latitudes) and are threat limitations to plant growth (Farooq et al, 2012;Mittler, 2006;Simoes-Araujo et al, 2003; Vahid et al, 2007) and sustainable agriculture (Ahuja et al, 2010). Increasing frequency of water deficits, events of heat waves, and intra-and inter-seasonal variations as well as an increase in the atmospheric CO 2 concentration will add another layer of complexity to the effects of drought and heat stresses (Sekhon et al, 2010;Vadez et al, 2011; Vahid et al, 2007).…”

mentioning

confidence: 99%

Effect of drought and heat stresses on plant growth and yield: a review

Lipiec¹,

Doussan²,

Nosalewicz³

et al. 2013

International Agrophysics

401

204

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A b s t r a c t. Drought and heat stresses are important threat limitations to plant growth and sustainable agriculture worldwide. Our objective is to provide a review of plant responses and adaptations to drought and elevated temperature including roots, shoots, and final yield and management approaches for alleviating adverse effects of the stresses based mostly on recent literature. The sections of the paper deal with plant responses including root growth, transpiration, photosynthesis, water use efficiency, phenotypic flexibility, accumulation of compounds of low molecular mass (eg proline and gibberellins), and expression of some genes and proteins for increasing the tolerance to the abiotic stresses. Soil and crop management practices to alleviate negative effects of drought and heat stresses are also discussed. Investigations involving determination of plant assimilate partitioning, phenotypic plasticity, and identification of most stress-tolerant plant genotypes are essential for understanding the complexity of the responses and for future plant breeding. The adverse effects of drought and heat stress can be mitigated by soil management practices, crop establishment, and foliar application of growth regulators by maintaining an appropriate level of water in the leaves due to osmotic adjustment and stomatal performance.K e y w o r d s: water stress, high temperature, root and shoot growth, tolerance mechanisms, management practices INTRODUCTIONPlants are frequently exposed to drought and heat stresses that reduce crop yield worldwide. The combined effect of both heat and drought on yield of many crops is stronger than the effects of each stress alone (Dreesen et al., 2012;Rollins et al., 2013).Agricultural water deficit arises from both insufficient rainfall and soil water during the growing season to sustain a high crop yield (Sekhon et al., 2010;Vadez et al., 2011;2012;). Projections show an increase in intense rain events and at the same time reduction in the number of rain days that leads to increased risk of drought (Trenberth, 2011;Vadez et al., 2011). Therefore, under rainfed conditions water scarcity is one of the most widespread limitations to crop production.A period of dry weather, injurious to crops, is often defined as 'drought' that is related to changes in soil and meteorological conditions and not with plant and tissue hydration. Drought stress occurs when the humidity of the soil and the relative air humidity are low and the ambient temperature is high.Predisposition of plants to maintain a high potential of water in the tissues under drought is called dehydration avoidance, and tolerance that determines plant predisposition to survive water deficiency is called drought resistance (Blum, 2005;Vadez et al., 2011). Molecular biologists often report the effect of an exotic gene towards 'drought tolerance' and advertise its expected value in breeding (Blum, 2005).Heat stress or heat wave is defined as the rise in temperature beyond a threshold level for a period sufficient to cause permanent ...

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Small heat shock proteins genes are differentially expressed in distinct varieties of common bean

Cited by 81 publications

References 43 publications

Physiological response of late sown wheat to exogenous application of silicon

Physiological response of late sown wheat to exogenous application of silicon

Induction of Thermotolerance and Activation of Antioxidant Enzymes in H2O2 Pre-applied Leaves of Cucumber and Tomato Seedlings

Effect of drought and heat stresses on plant growth and yield: a review

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