Morphological and physiological responses of lowland purple nutsedge (Cyperus rotundus L.) to flooding

Fuentes, Rolly G.; Baltazar, Aurora M.; Merca, Florinia E.; Johnson, David E.

doi:10.1093/aobpla/plq010

Cited by 21 publications

(31 citation statements)

References 32 publications

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“…Increases in PDC and ADH activities have been associated with tolerance in various species. Valdez (1995) and Ismail et al (2009) reported higher PDC and ADH activities in tolerant rice genotypes when compared with sensitive ones; Peña-Fronteras et al (2009) and Fuentes et al (2010) showed similar results in flood-tolerant lowland ecotypes of C. rotundus; and this was also reported in other plants such as maize ( Schwartz 1969 ) and A. thaliana ( Dolferus et al 2003 ).…”

Section: Discussionmentioning

confidence: 62%

Differences in responses to flooding by germinating seeds of two contrasting rice cultivars and two species of economically important grass weeds

et al. 2014

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Barnyard grasses are serious weeds in direct seeded rice. We assessed the effectiveness of using controlled flooding for its control using two rice cultivars and two barnyard grasses contrasting in flood tolerance during germination. Flooding with 100 mm water after seeding suppressed barnyard grasses; but delaying flooding by 2-4 days was ineffective. Flooding increased the activity of alcohol dehydrogenase and pyruvate decarboxylase; the increase was higher in the tolerant rice cultivar but similar in both barnyard grasses. Aldehyde dehydrogenase activity increased only in flood-tolerant types of rice and weeds, but not in flood-sensitive types, implying potential role in tolerance.

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Section: Discussionmentioning

confidence: 62%

Differences in responses to flooding by germinating seeds of two contrasting rice cultivars and two species of economically important grass weeds

et al. 2014

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“…Fish farming can thus serve as an excellent model system to study how specific selection pressures have led to phenotypic differentiation. Adaptation to anthropogenic environments has also been suggested for C. rotundus , where the recently evolved lowland ecotype is thought to have acquired numerous adaptive traits under the selection pressure of repeated management practices in flooded rice fields in the Philippines (Fuentes et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…In the genus Cyperus , only the perennial C. rotundus , a major weed of crops and vegetables, has been investigated for its response to flooding so far (Fuentes et al, 2010). Along with larger air spaces in the culms and larger tubers with higher carbohydrate content, a steady activity of alcohol dehydrogenase in the roots as a measure of sustained anaerobic respiration under hypoxia characterizes the flood-tolerant ecotype of C. rotundus .…”

Section: Discussionmentioning

confidence: 99%

Fitness and growth of the ephemeral mudflat species Cyperus fuscus in river and anthropogenic habitats in response to fluctuating water-levels

Böckelmann

Tremetsberger

Šumberová

et al. 2017

Flora

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Cyperus fuscus is a representative of threatened ephemeral wetland plant communities in summer-dry shoreline habitats. We compared variation and plasticity in traits related to fitness and growth of plants germinating from the soil seed bank and established plants from river and secondary anthropogenic habitats. Plants from sites at rivers, fishponds and fish storage ponds were cultivated and selfed to get homogenous seed material for a germination and an environmental manipulation experiment involving three different water regimes. Differences in traits and their plasticities were evaluated by means of linear mixed models. Cyperus fuscus followed a low-oxygen escape strategy when flooded. Seeds of plants derived from the soil seed bank germinated faster than seeds of plants derived from established plants suggesting that short-term selection of genotypes is mediated by the particular conditions on the site during germination. The experiment revealed significant differences between river and secondary habitats as well as between the soil seed bank and established plants. For example, plants from river habitats produced the highest number of culms with inflorescences. The difference was most evident under partial submergence. Plants from fish storage ponds rapidly reached the reproductive phase, but produced less culms with inflorescences. This seemingly allows them to cope with numerous and irregular disturbances and intensive substrate moisture changes. Our results suggest that populations have adapted to conditions at secondary habitats provided by fish farming during the last centuries.

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“…The absorption at 620 nm of the sample was measured using ultra-violet spectrophotometer with glucose as standard. The starch concentration was determined by enzymatic hydrolysis following the method of Fuentes et al (2010). The residue that was obtained after the analysis of soluble sugars was oven-dried at 70°C overnight.…”

Section: Plant Physiological Parameters and Mycorrhizal Colonization mentioning

confidence: 99%

Different respiration metabolism between mycorrhizal and non-mycorrhizal rice under low-temperature stress: a cry for help from the host

Liu

Wang

et al. 2014

J. Agric. Sci.

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SUMMARYLow-temperature stress is an important environmental factor that severely disrupts plant respiration but can be alleviated by symbiotic arbuscular mycorrhizal fungi (AMF). In the current study, a pot experiment was performed to determine changes in the respiratory metabolic capacity of mycorrhizal rice (Oryza sativa) under low-temperature stress. The results demonstrated that low temperature might accelerate the biosynthesis of strigolactone in mycorrhizal rice roots by triggering the expression of genes for the synthesis of strigolactone, which acted as a host stress response signal. In addition, AMF prompted the host tricarboxylic acid (TCA) cycle by enhancing pyruvate metabolism, up-regulating the expression of genes of the TCA cycle under low-temperature stress and affecting the electron transport chain. The alternative oxidase pathway might be the main electron transport pathway in non-mycorrhizal rice under stress, while the cytochrome c oxidase (COX) pathway might be the predominant pathway in arbuscular mycorrhizal symbiosis. Mycorrhizal rice also had higher adenosine triphosphate production to maintain the natural status of respiration under stress conditions, which resulted in improved root growth status and alleviated low-temperature stress.

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Morphological and physiological responses of lowland purple nutsedge (Cyperus rotundus L.) to flooding

Abstract: Comparing a lowland and an upland ecotype of Cyperus rotundus, the former had greater carbohydrate reserves in tubers, thicker roots and stems with larger air spaces and, under hypoxia, it maintained relatively lower activities of alcohol dehydrogenase and lactate dehydrogenase.

Cited by 21 publications

References 32 publications

Differences in responses to flooding by germinating seeds of two contrasting rice cultivars and two species of economically important grass weeds

Differences in responses to flooding by germinating seeds of two contrasting rice cultivars and two species of economically important grass weeds

Fitness and growth of the ephemeral mudflat species Cyperus fuscus in river and anthropogenic habitats in response to fluctuating water-levels

Different respiration metabolism between mycorrhizal and non-mycorrhizal rice under low-temperature stress: a cry for help from the host

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