Aerenchyma Development in Waterlogged Plants

Kawase, Makoto; Whitmoyer, Robert E.

doi:10.1002/j.1537-2197.1980.tb07620.x

Cited by 57 publications

(31 citation statements)

References 8 publications

(10 reference statements)

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“…This finding was mainly due to the significantly increased root biomass of G. max under extreme rainfall, which greatly stimulated the growth of adventitious roots (F. Sun, personal observation) and increased tolerance to hypoxia, both of which safeguarded the root activity and functionality43. These factors also resulted in higher microbial resistance than was found in the monoculture or in the C. annuum and M. sativa mixed cultures.…”

Section: Discussionmentioning

confidence: 95%

The response of the soil microbial food web to extreme rainfall under different plant systems

Sun

Pan

Tariq

et al. 2016

Sci Rep

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An agroforestry experiment was conducted that involved four planting systems: monoculture of the focal species Zanthoxylum bungeanum and mixed cultures of Z. bungeanum and Capsicum annuum, Z. bungeanum and Medicago sativa and Z. bungeanum and Glycine max. Soil microbial food web (microorganisms and nematodes) was investigated under manipulated extreme rainfall in the four planting systems to assess whether presence of neighbor species alleviated the magnitude of extreme rainfall on nutrient uptake of the focal species by increasing the stability of soil food web. Our results indicate that in the focal species and G. max mixed culture, leaf nitrogen contents of the focal species were higher than in the monoculture and in the other mixed cultures under extreme rainfall. This result was mainly due to the significant increase under extreme rainfall of G. max species root biomass, resulting in enhanced microbial resistance and subsequent net nitrogen mineralization rate and leaf nitrogen uptake for the focal species. Differences in functional traits of neighbors had additive effects and led to a marked divergence of soil food-web resistance and nutrient uptake of the focal species. Climate change can indirectly alleviate focal species via its influence on their neighbors.

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Section: Discussionmentioning

confidence: 95%

The response of the soil microbial food web to extreme rainfall under different plant systems

Sun

Pan

Tariq

et al. 2016

Sci Rep

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“…Ample evidence has been presented to show that aerenchyma provides a diusion path of low resistance for the transport of oxygen from aerial plant parts to roots or rhizomes in a waterlogged, O 2 -de®cient environment (Armstrong 1971;Das and Jat 1977;Kawase and Whitmoyer 1980;Konings and Verschuren 1980;Laan et al 1989). The formation of aerenchyma is thought to occur by either lysigeny or schizogeny (Smirno and Crawford 1983;Robards et al 1979).…”

Section: Introductionmentioning

confidence: 99%

Cellular dissection of the degradation pattern of cortical cell death during aerenchyma formation of rice roots

Kawai

Samarajeewa

Barrero

et al. 1998

Planta

153

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Cellular events which occur prior to cell collapse were examined in the root cortex of rice (Oryza sativa L.) during aerenchyma formation. Cell collapse started at a speci®c position in the mid cortex. These cells were distinct in shape from those located towards the periphery. Furthermore, cell collapse was preceded by acidi®cation and the loss of plasma-membrane integrity in cells of the mid cortex. Subsequent death of neighboring cells followed a radial path. Microinjection of molecules of dierent sizes conjugated with uorescein isothiocyanate (FITC) showed a molecular exclusion limit of between 9.3 and 19.6 kDa in the root cortex. Furthermore, large molecules, i.e. those around 9.3 kDa, were predominantly transferred in a radial direction, which coincided with the path of sequential cell death.Abbreviations: F-dextran = FITC conjugated dextran; FITC = uorescein isothiocyanate; LY = Lucifer Yellow Correspondence to: M. Kawai;

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“…Well-developed root AT also was associated with greater flood resistance. Aerenchyma were initiated within 24 hr of inundation and ultimately accounted for nearly 8% of total tissue volume (Kawase and Whitmoyer, 1980;Yu et al, 1969). Despite the apparent importance of AR and AT to plant survival during flood stress, factors governing genotypic capacity for such morphological adaptations are poorly understood.…”

mentioning

confidence: 99%

Adaptive Stem and Adventitious Root Responses of Two Tomato Genotypes to Flooding

McNamara¹,

Mitchell²

1990

HortSci

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Tomato accessions PI 128644 (Lycopersicon peruvianum var. dentatum Mill.) and PI 406966 (Lycopersicon esculentum Mill.) were identified in preliminary screening trials as being relatively nonresistant and resistant to 120 hr of flooding, respectively. Many adventitious roots (AR) developed on the lower stems of flooded PI 406966 seedlings, while few formed on flooded PI 128644 plants. Root formation by flooded PI 406966 seedlings depended on de novo initiation rather than emergence of preformed initials. Hypocotyl porosity of PI 406966 plants increased from between 3% and 6% to 8% by 36 and 72 hr of flooding, respectively. Porosity of PI 128644 hypocotyls was unchanged by 72 hr of inundation. Flooding did not affect the secondary root porosity of either accession. The limited capacity of PI 128644 seedlings to develop AR and aerenchyma was not related to an inability to synthesize 1-aminocyclopropane-l.carboxylic acid or ethylene in response to hypoxia. Chemical name used: 1-aminocyclopropane-1-carboxylic acid (ACC).

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Aerenchyma Development in Waterlogged Plants

Cited by 57 publications

References 8 publications

The response of the soil microbial food web to extreme rainfall under different plant systems

The response of the soil microbial food web to extreme rainfall under different plant systems

Cellular dissection of the degradation pattern of cortical cell death during aerenchyma formation of rice roots

Adaptive Stem and Adventitious Root Responses of Two Tomato Genotypes to Flooding

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