Flooding tolerance of Paspalum dilatatum (Poaceae: Paniceae) from upland and lowland positions in a natural grassland

Mollard, Federico P.O.; Striker, Gustavo G.; Ploschuk, Edmundo L.; Vega, Andrea S.; Insausti, Pedro

doi:10.1016/j.flora.2007.10.003

Cited by 29 publications

(22 citation statements)

References 30 publications

(43 reference statements)

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“…In grass roots, lysigenous aerenchyma is widespread (Jung et al, 2008;Justin and Armstrong, 1987;Seago et al, 2005); schizolysigeny is a more appropriate term. Reports about root cortex anatomy in other species of Paspalum are similar to what we found (Fabbri et al, 2005;Metcalfe, 1960;Mollard et al, 2008;Vasellati et al, 2001).…”

Section: Discussionsupporting

confidence: 87%

“…Root structures found herein for all four species, including P. distichum, are similar to those reported for P. dilatatum by Fabbri et al (2005), Mollard et al (2008), and Vasellati et al (2001) and P. paniculatum (Da Silva et al, 2003), except that our histochemical studies have demonstrated Casparian walls, suberin lamellae, and lignified secondary cell walls in the mostly biseriate exodermis. The exodermal Casparian material in roots is similar to that found for Typha glauca and T. angustifolia by Seago et al (1999), except that Typha exodermis is multiseriate, and the Y-shaped Casparian material is similar to that found in Glyceria maxima by Soukup et al (2007).…”

Section: Discussionsupporting

confidence: 85%

“…One of us (JLS) has observed this same sponginess in expansigenous aerenchyma in roots of other species . In other words, the air spaces, cavities or aerenchymas, in P. distichum are dissimilar among species belonging to the genus Paspalum (Fabbri et al, 2005;Metcalfe, 1960;Mollard et al, 2008;Vasellati et al, 2001). Such heterogeneity at genus level seems to be highly unusual .…”

Section: Discussionmentioning

confidence: 99%

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Root and stem anatomy and histochemistry of four grasses from the Jianghan Floodplain along the Yangtze River, China

Yang

Zhang

Zhou

et al. 2011

Flora - Morphology, Distribution, Functional Ecology of Plants

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Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Root and stem anatomy and histochemistry of four grasses from the Jianghan Floodplain along the Yangtze River, China

Yang

Zhang

Zhou

et al. 2011

Flora - Morphology, Distribution, Functional Ecology of Plants

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“…Reduction of stomatal conductance in plants under water stress (125% ETc), in the absence of treatment with initial defoliation, results from a regulating behavior of the water balance, according to Mollard et al (2008). These authors also claim that this mechanism is a critical response of the plant to avoid leaf dehydration in species susceptible to water excess in the soil, thus allowing their survival, for reducing the absorption of potentially toxic ions.…”

Section: Methodsmentioning

confidence: 99%

Defoliation of sweet corn plants under irrigation depths and its impact on gas exchange

Santos

Lima

Neto

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe objective of this work was to evaluate leaf gas exchanges of sweet corn as a function of defoliation when submitted to different irrigation depths. The experimental design was randomized blocks in split-plot scheme, with four irrigation depths in the plots [50, 75, 100 and 125% of crop evapotranspiration (ETc)], and three levels of defoliation in the subplots (0%, control; 35%, removal of four fully expanded leaves; 100%, total removal of the leaves -section of the aerial part) with three replicates. Defoliation was manually performed when the plant had four fully expanded leaves. It was verified that the dephs of irrigation and defoliation levels affect leaf gas exchanges in sweet corn plants, allowing the conclusion that the plant tends to activate a mechanism of photosynthetic compensation, when subjected to leaf stress, which can vary according to the degree of severity and water availability to which it is submitted. The most expressive values of gas exchanges in sweet corn plants that did not have defoliation were generally observed at irrigation depths estimated between 87 and 99% ETc and, in the treatments with defoliation, regardless of the level, at irrigation depth of 125% ETc. Desfolha em plantas de milho doce sob diferentes lâminas de irrigação e seu impacto nas trocas gasosas R E S U M O Objetivou-se neste trabalho avaliar as trocas gasosas foliares de plantas de milho doce em função da desfolha, quando submetidas a diferentes lâminas de irrigação. O delineamento experimental foi em blocos casualizados em esquema de parcelas subdivididas, tendo nas parcelas quatro lâminas de irrigação 50, 75, 100 e 125% da evapotranspiração da cultura (ETc) e nas subparcelas três níveis de desfolha (0%, testemunha; 35%, remoção de quatro folhas completamente expandidas; 100% remoção total das folhas -secção da parte aérea) com três repetições, sendo a desfolha realizada manualmente quando a planta apresentava quatro folhas completamente expandidas. Verificou-se que os níveis de irrigação e desfolha afetam as trocas gasosas foliares em plantas de milho doce, permitindo a conclusão de que a planta quando submetida a estresses foliares, tende a ativar um mecanismo de compensação fotossintética, podendo variar em função do grau de severidade e da disponibilidade hídrica a qual está submetida. Os valores mais expressivos de trocas gasosas em folhas de milho doce que não tiveram desfolha foram, de forma geral, observados nas lâminas de irrigação estimadas entre 87 e 99% da ETc e nos tratamentos com desfolha, independente do nível ocorrido, na lâmina de 125% da ETc.

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“…Species are found in many different habitats, including savannas, forests, and forests margins; and dry, sandy, saline, or waterlogged soils (e.g. Mollard et al, 2008). Reaching 4500 m in elevation, some species grow in mountainous regions, such as P. candidum Kunth and P. pygmaeum Hack.…”

Section: Introductionmentioning

confidence: 99%

Atypical foliar anatomy related to Kranz syndrome in Paspalum inaequivalve and Paspalum microstachyum (Poaceae: Panicoideae: Paniceae)

Aliscioni

Denham

2009

Flora - Morphology, Distribution, Functional Ecology of Plants

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Flooding tolerance of Paspalum dilatatum (Poaceae: Paniceae) from upland and lowland positions in a natural grassland

Cited by 29 publications

References 30 publications

Root and stem anatomy and histochemistry of four grasses from the Jianghan Floodplain along the Yangtze River, China

Root and stem anatomy and histochemistry of four grasses from the Jianghan Floodplain along the Yangtze River, China

Defoliation of sweet corn plants under irrigation depths and its impact on gas exchange

Atypical foliar anatomy related to Kranz syndrome in Paspalum inaequivalve and Paspalum microstachyum (Poaceae: Panicoideae: Paniceae)

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