Aerenchyma Formation in the Seminal Roots of Japanese Wheat Cultivars in Relation to Growth under Waterlogged Conditions

Haque, Md. Emdadul; Oyanagi, Atsushi; Kawaguchi, Kenichi

doi:10.1626/pps.15.164

Cited by 29 publications

(37 citation statements)

References 22 publications

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“…The QY of unstressed plants of the reference material was initially not significantly correlated with WLT, but 3-5 days after interrupted aeration the QY changed and correlated significantly with WLT. Such quick responses are reported for aerenchyma development in tomato [16] and wheat [23], but changes in metabolic pathways may also play a role [24]. In this study there was a maximum effect after 4-5 days, whereas Pang et al [7] reported maximum effects on QY in dark-adapted leaves after 2-3 weeks of waterlogging.…”

Section: Discussionsupporting

confidence: 47%

Screening for Barley Waterlogging Tolerance in Nordic Barley Cultivars (Hordeum vulgare L.) Using Chlorophyll Fluorescence on Hydroponically-Grown Plants

Bertholdsson

2013

Agronomy

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Waterlogging can reduce crop yield by 20%-50% or more, and lack of efficient selection methods is an obstacle in plant breeding. The methods currently used are mainly indices based on germination ability in Petri dishes and leaf chlorosis in plants grown in waterlogged soils. Cultivation in oxygen-depleted nutrient solution is the ultimate waterlogging system. Therefore methods based on root growth inhibition and on fluorescence in plant material hydroponically grown in oxygen-depleted solution were evaluated against data on biomass accumulation in waterlogged soils. Both traits were correlated with waterlogging tolerance in soil, but since it was easier to measure fluorescence, this method was further evaluated. A selection of F 2 plants with high and low fluorescence revealed a small but significant screening effect in F 3 plants. A test of 175 Nordic cultivars showed large variations in chlorophyll fluorescence in leaves from oxygen-stressed seedlings, indicating that adaptation to waterlogging has gradually improved over the past 40-50 years with the introduction of new cultivars onto the market. However, precipitation also increased during the period and new cultivars may have inadvertently been adapted to this while breeding barley for grain yield. The results suggest that the hydroponic method can be used for screening barley populations, breeding lines or phenotyping of populations in developing markers for quantitative trait loci.

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Section: Discussionsupporting

confidence: 47%

Screening for Barley Waterlogging Tolerance in Nordic Barley Cultivars (Hordeum vulgare L.) Using Chlorophyll Fluorescence on Hydroponically-Grown Plants

Bertholdsson

2013

Agronomy

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“…This report empirically demonstrates the benefit of RCA for N acquisition from low-N soils. Genetic variation of RCA is present in several important agronomic species, including wheat, barley (Hordeum vulgare), sorghum (Sorghum bicolor), rice (Oryza sativa), common bean, and maize (Liljeroth, 1995;Colmer, 2003;Fan et al, 2003;Haque et al, 2010Haque et al, , 2012Zhu et al, 2010a;Promkhambut et al, 2011), making RCA amenable to plant breeding. We suggest that increased RCA formation may be a promising breeding target for enhancing N acquisition from low-N soils and for reducing the N requirement of high-input agriculture.…”

Section: Discussionmentioning

confidence: 99%

Root Cortical Aerenchyma Enhances Nitrogen Acquisition from Low-Nitrogen Soils in Maize

et al. 2014

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ORCID ID: 0000-0002-7265-9790 (J.P.L.).Suboptimal nitrogen (N) availability is a primary constraint for crop production in developing nations, while in rich nations, intensive N fertilization carries substantial environmental and economic costs. Therefore, understanding root phenes that enhance N acquisition is of considerable importance. Structural-functional modeling predicts that root cortical aerenchyma (RCA) could improve N acquisition in maize (Zea mays). We evaluated the utility of RCA for N acquisition by physiological comparison of maize recombinant inbred lines contrasting in RCA grown under suboptimal and adequate N availability in greenhouse mesocosms and in the field in the United States and South Africa. N stress increased RCA formation by 200% in mesocosms and by 90% to 100% in the field. RCA formation substantially reduced root respiration and root N content. Under low-N conditions, RCA formation increased rooting depth by 15% to 31%, increased leaf N content by 28% to 81%, increased leaf chlorophyll content by 22%, increased leaf CO 2 assimilation by 22%, increased vegetative biomass by 31% to 66%, and increased grain yield by 58%. Our results are consistent with the hypothesis that RCA improves plant growth under N-limiting conditions by decreasing root metabolic costs, thereby enhancing soil exploration and N acquisition in deep soil strata. Although potential fitness tradeoffs of RCA formation are poorly understood, increased RCA formation appears be a promising breeding target for enhancing crop N acquisition.

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“…Previous studies reported that after seedling waterlogging, the number of adventitious roots and tillers formed per plant decreased, and the length, surface area, and nitrogen concentration of leaves, as well as the root and shoot dry weight and root/shoot ratio, were reduced (Malik et al, 2002;Robertson et al, 2009;Haque, 2012;Shao et al, 2013;Tıryakıoğlu et al, 2015). The present study showed that seedling waterlogging from GS12 to GS14 significantly disrupted the leaf stage growth and decreased the number of tillers per plant, number of adventitious roots per plant, seedling height, leaf area, specific leaf dry weight, shoot dry weight, root dry weight, and root/shoot ratio (Tables 1, 2, 3, and 4).…”

Section: Discussionmentioning

confidence: 99%

“…Chakraborty et al (2008) considered that relatively high specific leaf dry weight indicates healthy biomass, and can further promote photosynthesis. Furthermore, multiple waterlogging resistance traits have been proposed, such as high carbohydrate status, aerenchyma formation in roots, and suitable root system architecture (Huang & Johnson, 1995;Dickin & Wright, 2008;Haque et al, 2012;Hayashi et al, 2013). Further research is thus necessary to investigate the waterlogging response of wheat cultivars at other growth stages.…”

Section: Journal Of Agricultural Sciencementioning

confidence: 99%

“…At the agronomic level, typical responses to waterlogging include decreased plant height; inhibited antioxidant capacity of leaves and roots; relatively low levels of photosynthesis, respiration, and transpiration; and reduced growth of the roots and shoots; and reduced tillers, kernel number, and grain yield (Brisson et al, 2002;Jiang et al, 2006;Olgun et al, 2008;Hossain & Uddin, 2011). In addition, the severity of waterlogging's unfavourable effectson wheat growth depends on several factors, such assoil and weather conditions (Setter & Waters, 2003), cultivars grown (Dickin et al, 2009;Haque et al, 2012), cultivation technologies (Wu et al, 2013), growth stage of the plants (Shao et al, 2013;Wu et al, 2015), depth of water levels (Malik et al, 2001), and severity and duration of waterlogging (Collaku & Harrison, 2002;Malik et al, 2002). …”

Section: Introductionmentioning

confidence: 99%

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Seedling Growth and Recovery in Response to Waterlogging of Wheat Cultivars Grown in the Yangtze River Basin of China from Three Different Decades

Ding¹,

Su²,

Zhang³

et al. 2017

JAS

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Waterlogging is a major constraint on wheat (Triticum aestivum L.) production, especially in the Yangtze River Basin of China (YR). A container experiment was designed to investigate wheat-seedling growth and short-term recoveryin response to waterlogging. Cultivars commonly grown in theYR from three different decades, namely, Yangmai 1 (1970s), Yangmai 158 (1990s), and Yangfumai 4 (2010s), were selected. Seedling waterlogging significantly postponed leaf development, as well as decreased the number of tillers and adventitious roots per plant, seedling height, leaf area, specific leaf dry weight, shoot dry weight, root dry weight, and root/shoot ratio. After a 20-day recovery phase, the leaf stage, seedling height, and root/shoot ratio recovered to the control level, whereas the adverse effects of waterlogging on the number of tillers per plant, leaf area, and shoot dry weight intensified. Significant differences were found in seedling growth among the three wheat cultivars. Yangfumai 4 showed the highest number of adventitious rootsper plant and the highest specific leaf dry weightbut the lowest seedling height, leaf area, and dry weights of shoots and roots. However, Yangfumai 4 showed the lowest percentage decrease in all growth parameters after both waterlogging and recovery. These results suggested thatimprovement inadventitious root numberper plant and specific leaf dry weight may be indicators ofresistance to waterlogging in wheat.

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Aerenchyma Formation in the Seminal Roots of Japanese Wheat Cultivars in Relation to Growth under Waterlogged Conditions

Cited by 29 publications

References 22 publications

Screening for Barley Waterlogging Tolerance in Nordic Barley Cultivars (Hordeum vulgare L.) Using Chlorophyll Fluorescence on Hydroponically-Grown Plants

Screening for Barley Waterlogging Tolerance in Nordic Barley Cultivars (Hordeum vulgare L.) Using Chlorophyll Fluorescence on Hydroponically-Grown Plants

Root Cortical Aerenchyma Enhances Nitrogen Acquisition from Low-Nitrogen Soils in Maize

Seedling Growth and Recovery in Response to Waterlogging of Wheat Cultivars Grown in the Yangtze River Basin of China from Three Different Decades

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