Waterlogging tolerance in the tribe Triticeae: the adventitious roots of Critesion marinum have a relatively high porosity and a barrier to radial oxygen loss

By M. McDonald, N. Galwey, Timothy D. Colmer. 2001

136 citations recorded by the source corpus.

Nine species from the tribe Triticeae ‐ three crop, three pasture and three ‘wild’ wetland species ‐ were evaluated for tolerance to growth in stagnant deoxygenated nutrient solution and also for traits that enhance longitudinal O 2 movement within the roots. Critesion marinum (syn. Hordeum marinum ) was the only species evaluated that had a strong barrier to radial O 2 loss (ROL) in the basal regions of its adventitious roots. Barriers to ROL have previously been documented in roots of several wetland species, although not in any close relatives of dryland crop species. Moreover, the porosity in adventitious roots of C. marinum was relatively high: 14% and 25% in plants grown in aerated and stagnant solutions, respectively. The porosity of C. marinum roots in the aerated solution was 1·8‐5·4-fold greater, and in the stagnant solution 1·2‐2·8-fold greater, than in the eight other species when grown under the same conditions. These traits presumably contributed to C. marinum having a 1·4‐3 times greater adventitious root length than the other species when grown in deoxygenated stagnant nutrient solution or in waterlogged soil. The length of the adventitious roots and ROL profiles of C. marinum grown in waterlogged soil were comparable to those of the extremely waterlogging-tolerant species Echinochloa crus-galli L. (P. Beauv.). The superior tolerance of C. marinum , as compared to Hordeum vulgare (the closest cultivated relative), was confirmed in pots of soil waterlogged for 21 d; H. vulgare suffered severe reductions in shoot and adventitious root dry mass (81% and 67%, respectively), whereas C. marinum shoot mass was only reduced by 38% and adventitious root mass was not affected.

Subfields: Biomedical Engineering, Plant Science

View Paper: https://www.semanticscholar.org/paper/ae6a73a7e3bae7deecb2a2f30b3f2a2c80f94764

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

Timothy D. Colmer

In Plant Science

Citations in the corpus

Identification of QTL controlling adventitious root formation during flooding conditions in teosinte (Zea mays ssp. huehuetenangensis) seedlings (2005, background): “In the tribe Triticeae, wild barley Hordeum marinum, which is known to occupy areas likely to experience periods of waterlogging, exhibits superior tolerance when compared to cultivated barley ( McDonald et al., 2001 ).”
Plant root growth, architecture and function (2009, background): “In contrast, in non-wetland species oxygen may be more readily lost from the root, as shown for wheat (Thomson et al. 1992) and barley (McDonald et al. 2001).”
Breeding for flooding tolerant maize using "teosinte" as a germplasm resource (2007, background): “flooding tolerance when compared to cultivated barley (McDonald et al. 2001).”
Mechanisms of waterlogging tolerance in wheat: Morphological and metabolic adaptations under hypoxia or anoxia (2011, background): “…grown under low O2 concentrations (Benjamin and Greenway, 1979; Trought & Drew, 1980b, c; Belford, 1981; Erdmann & Wiedenorth, 1986; Barrett-Lennard et al., 1988; Thomson et al., 1990, 1992; Drew, 1991; Huang et al., 1994a, b; Watkin et al., 1998; McDonald et al., 2001a, b; Haque et al., 2010).”
Aerenchyma Formation in Plants (2014, background): “In non-wetland plant species such as maize, wheat, and barley, lysigenous aerenchyma does not typically form under well-drained soil conditions but is induced by poor aeration (McDonald et al. 2001; McPherson 1939; Trought and Drew 1980).”
Similarity and diversity in adventitious root anatomy as related to root aeration among a range of wetland and dryland grass species (2002, background): “marinum (McDonald et al. 2001) that are close relatives of crop species (such as sorghum, maize and sugarcane in the case of Vetiveria spp.”
QTL mapping of root aerenchyma formation in seedlings of a maize × rare teosinte “Zea nicaraguensis” cross (2007, background): “In order to enhance the repeatability of the Xooding trials, we have divided soil Xooding tolerance at the seedling stage into three components: (1) the plant’s capacity to form aerenchyma channels in roots (Arikado and Adachi 1955; Armstrong et al. 1991; Burdick 1989; Laan et al. 1989; McDonald et ”
Long-distance transport of gases in plants: a perspective on internal aeration and radial oxygen loss from roots (2003, background): “Recently, McDonald et al. (2001a) (see also Table 4) described a barrier to ROL in adventitious roots of the marsh species Hordeum marinum (syn.”
Biosaline agriculture for forage and livestock production (2007, background): “Poor biomass production and poor nutritive value when dry McDonald et al. (2001), Colmer et al. (2005) Pennisetum clandestinum Kikuyu grass P 21.5 Grass Branching rhizomes.”