Rooting plasticity in wild and cultivated Andean Chenopodium species under soil water deficit

Alvarez-Flores, Ricardo; Nguyen-Thi-Truc, Anh; Peredo-Parada, Santiago; Joffre, Richard; Winkel, Thierry

doi:10.1007/s11104-018-3588-7

Cited by 25 publications

(20 citation statements)

References 53 publications

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“…Quinoa’s flowering and milk grain stages have been established as the most drought-sensitive [38]. Several studies have been conducted to understand the quinoa plant’s mechanisms under drought stress [39,48,49,50,51,52,53,54]. In a pot experiment under drought conditions, Jacobsen et al (2009) reported an increased concentration of abscisic acid (ABA) in the roots of quinoa altiplano variety ‘INIA-Illpa’, which induced a decreased turgor of stomata guard cells [52].…”

Section: Droughtmentioning

confidence: 99%

“…Results showed that the quinoa genotypes exhibited accelerated taproot growth in dry soil conditions compared to the other two species. Furthermore, the quinoa genotype from the dry habitat showed longer, coarser, and more numerous root segments than the wet-habitat genotype [48]. These findings led the authors to suggest quinoa as a promising plant model to investigate biophysical and ecophysiological traits of plant rooting in deep soil layers.…”

Section: Droughtmentioning

confidence: 99%

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Quinoa Abiotic Stress Responses: A Review

Hinojosa

González

Barrios-Masias

et al. 2018

Plants

207

169

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Quinoa (Chenopodium quinoa Willd.) is a genetically diverse Andean crop that has earned special attention worldwide due to its nutritional and health benefits and its ability to adapt to contrasting environments, including nutrient-poor and saline soils and drought stressed marginal agroecosystems. Drought and salinity are the abiotic stresses most studied in quinoa; however, studies of other important stress factors, such as heat, cold, heavy metals, and UV-B light irradiance, are severely limited. In the last few decades, the incidence of abiotic stress has been accentuated by the increase in unpredictable weather patterns. Furthermore, stresses habitually occur as combinations of two or more. The goals of this review are to: (1) provide an in-depth description of the existing knowledge of quinoa’s tolerance to different abiotic stressors; (2) summarize quinoa’s physiological responses to these stressors; and (3) describe novel advances in molecular tools that can aid our understanding of the mechanisms underlying quinoa’s abiotic stress tolerance.

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Section: Droughtmentioning

confidence: 99%

Section: Droughtmentioning

confidence: 99%

Quinoa Abiotic Stress Responses: A Review

Hinojosa

González

Barrios-Masias

et al. 2018

Plants

207

169

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“…Phenotypic responses associated with each characteristic occur at every stage of plant development, influencing the overall plasticity from generation to generation (Figure 2). Common phenotypic responses known to be associated with plant development, plant morphology, and plant physiology include: (1) rapid seedling growth allowing maximum capture of light, water, and nutrients [37][38][39][40][41], (2) a short vegetative phase allowing life cycle completion in various growing seasons and conditions [42][43][44][45][46][47], (3) deep root systems allowing plants to survive through drought conditions [47,48], (4) high seed output ensuring spatial and temporal dispersal, (5) discontinuous or extensive seed dormancy ensuring germination only in favorable conditions [49][50][51], (6) efficient cellular machinery for scavenging reactive oxygen species (ROS) [52,53], and (7) environmental plasticity, or the ability to respond to changing biotic or abiotic environmental factors [1,13].…”

Section: Characteristics Of Wild Plasticity: Examples In Trees and Weedsmentioning

confidence: 99%

Phenological Plasticity of Wild and Cultivated Plants

Hauvermale¹,

Sanad²

2020

Plant Communities and Their Environment

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The future survival of wild and cultivated plant species will depend on their ability to adapt to environmental changes caused by climate change. Phenological plasticity describes physiological, developmental, cellular, and epigenetic mechanisms that contribute to genetic diversity and adaptability. Many studies evaluating plasticity using trees, cereals (barley, wheat, and rice), pulses, and weeds have discovered that plasticity mechanisms differ between wild and cultivated plant populations. Major findings indicated by these studies are: (1) invasiveness and adaptability in wild and/or "weedy" plant species may be controlled by specific plasticity genes, (2) adaptability is directly connected to adaptive responses and fitness, and (3) domestication and cultivation have altered plasticity mechanisms. Therefore, selective breeding requires a holistic understanding of plant plasticity. Breeding strategies should consider differences in plasticity mechanisms between wild and cultivated plant populations to reintroduce genetic diversity of plasticity from wild relatives.

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“…Although the natural distribution of quinoa is from southern Colombia to the coast of south‐central Chile from 2°N to 43°S (Zurita‐Silva et al ., ), quinoa has recently been cultivated in parts of the world with arid and hot growth seasons (Bazile et al ., ; Murphy et al ., ). Quinoa adapts to drought conditions (Geerts et al ., ; Martínez et al ., ; Razzaghi et al ., ; Walters et al ., ; Maliro et al ., ) by accumulating solutes, reducing leaf stomatal conductance and modulating root architecture (Bosque Sanchez et al ., ; Jacobsen et al ., ; González et al ., ; Alvarez‐Flores et al ., ). High temperatures stimulate quinoa growth (Yang et al ., ; Becker et al ., ; Bunce, ; Hinojosa et al ., ) but diminish seed yield, particularly under drought conditions (Fuentes and Bhargava, ; Peterson and Murphy, ; Walters et al ., ; Lesjak and Calderini, ; Hinojosa et al ., ).…”

Section: Introductionmentioning

confidence: 97%

Impact of heat and drought stress on peroxisome proliferation in quinoa

et al. 2019

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AS and KM are joint senior authors. SUMMARYAlthough peroxisomes play a key role in plant metabolism under both normal and stressful growth conditions, the impact of drought and heat stress on the peroxisomes remains unknown. Quinoa represents an informative system for dissecting the impact of abiotic stress on peroxisome proliferation because it is adapted to marginal environments. Here we determined the correlation of peroxisome abundance with physiological responses and yield under heat, drought and heat plus drought stresses in eight genotypes of quinoa. We found that all stresses caused a reduction in stomatal conductance and yield. Furthermore, H 2 O 2 content increased under drought and heat plus drought. Principal component analysis demonstrated that peroxisome abundance correlated positively with H 2 O 2 content in leaves and correlated negatively with yield. Pearson correlation coefficient for yield and peroxisome abundance (r = À0.59) was higher than for commonly used photosynthetic efficiency (r = 0.23), but comparable to those for classical stress indicators such as soil moisture content (r = 0.51) or stomatal conductance (r = 0.62). Our work established peroxisome abundance as a cellular sensor for measuring responses to heat and drought stress in the genetically diverse populations. As heat waves threaten agricultural productivity in arid climates, our findings will facilitate identification of genetic markers for improving yield of crops under extreme weather patterns. Gene transcription analysisPeroxisome genes in quinoa were identified by performing a BLAST search of Arabidopsis sequences against the quinoa pseudomolecule genome assembly (Jarvis et al., 2017) using default parameters ( Figure S3). Syntenic regions of coding sequences

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Rooting plasticity in wild and cultivated Andean Chenopodium species under soil water deficit

Cited by 25 publications

References 53 publications

Quinoa Abiotic Stress Responses: A Review

Quinoa Abiotic Stress Responses: A Review

Phenological Plasticity of Wild and Cultivated Plants

Impact of heat and drought stress on peroxisome proliferation in quinoa

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