Water Uptake by Seeds in Yellow-seeded Soybean (<i>Glycine max</i>(L.) Merrill) Cultivars with Contrasting Imbibition Behaviors

Nakayama, Naofumi; Komatsu, Setsuko

doi:10.1626/pps.11.415

Cited by 17 publications

(16 citation statements)

References 21 publications

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“…In pea lines with white seeds, the seed coat loosened rapidly in the imbibing seeds facilitating diffusion of water between the testa and cotyledons, while in lines with pigmented seeds the seed coat remained closely attached to the cotyledons (Powell 1989). Similarly, faster imbibition in lines of yellow-seeded soybean was not due to differences in the permeability of the seed coat, but rather to the increased movement of water between the seed coat and the cotyledons (Nakayama and Komatsu 2008). Adherence of the testa to the cotyledons is also the major factor contributing to the slow imbibition of Desi-type chickpea (Legesse and Powell 1996).…”

Section: Imbibition Damage In Grain Legumesmentioning

confidence: 97%

“…Pigmented testae have higher levels of lignins and tannins (Morrison et al 1995), waterproofing substances that may reduce permeability. On the other hand, lack of pigmentation is frequently associated with less adherence of the testa to the cotyledons, thus creating a void between them during initial imbibition (Wyatt 1977;Powell 1989;Nakayama and Komatsu 2008). This void is filled with water that is in direct contact with the embryo, leading to faster water uptake and increasing the risk of imbibition damage.…”

Section: Imbibition Damage In Grain Legumesmentioning

confidence: 99%

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Grain Legumes

2015

Handbook of Plant Breeding

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The field of plant breeding covers a broad range of different species and categories of plants. While there are many techniques and issues that are similar across these species, many more are unique to each genus.The Handbook of Plant Breeding is organized by major crop categories and includes the most up-to-date molecular techniques being used. It will serve as a resource for plant breeding laboratories in both the university and industrial setting.More information about this series at

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Section: Imbibition Damage In Grain Legumesmentioning

confidence: 97%

Section: Imbibition Damage In Grain Legumesmentioning

confidence: 99%

Grain Legumes

2015

Handbook of Plant Breeding

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“…However, there have been many reports of constraints in maintaining soybean yields and flooding injury in particular during the early growth stages has been recognized as a major constraint to soybean establishment and production 17,28,36 . Oxygen deprivation by flooding is one of the factors reducing plant growth under flooding because flooding often interferes with oxygen and carbon dioxide exchange between plants and their aerial aerobic environment 3,13,62 .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Metabolite Alteration under Flooding Stress in Soybeans

Nakamura¹,

Yamamoto²,

Hiraga³

et al. 2012

JARQ

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Soybean is a crop known to be susceptible to flooding and enhancing flooding tolerance may be a workable strategy to improve soybean production. To elucidate the effects of flooding on soybean metabolism, metabolite alterations in seedlings during flooding treatment were identified using capillary electrophoresis-mass spectrometry (CE/MS). The principal component analysis (PCA) of soybean seedlings revealed that the first component accounted for 62.2% of total variance, and the alteration of metabolites in control and flooding treatments appears to be separated by this component. Furthermore, comparison of the metabolic loading scores in the first component of PCA show that the significant metabolites for the first component were alanine (Ala), gamma-aminobutyric acid (GABA), citrate, fumarate and malate. Quantitative analysis revealed that the total soluble sugar content of seedlings in both control and flooding treatments had declined and was lower in the latter than the former. Phosphoenolpyruvate, pyruvate and lactate, which belong to glycolytic and fermentation pathways, increased transiently, but decreased 3 to 4 days after treatment. Citrate, 2-oxoglutarate, succinate, fumarate, Ala, and GABA, which are related to the TCA cycle and amino acid metabolism, accumulated during flooding treatment. These results suggest that metabolism associated with the TCA cycle, the Ala synthetic pathway, and the GABA shunt may be strongly influenced by flooding during soybean germination.Discipline: Agricultural environment / Soil fertilizers and plant nutrition Additional key words: capillary electrophoresis -mass spectrometry (CE/MS), flooding, metabolomic analysis, soybean seedlings Present address:

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“…using the bottom water supply method (Nakayama and Komatsu, 2008). The low-moisture seeds were weighed and promptly placed on water-saturated cotton touching a certain seed partial surface that let the area imbibe.…”

Section: Capillary Imbibitionmentioning

confidence: 99%

Two imbibition properties independently influence the cultivar-specific flooding tolerance of dried soybean seeds

2014

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Soybean seeds are prone to flooding injury just after planting if they are exposed to excess moisture. We investigated the flooding tolerance of soybean seeds to clarify the relationship between flooding injury and imbibition, to identify factors that could provide fundamental information for the breeding of flooding-tolerant cultivars. Seven cultivars were used for this study. The seeds were geminated in a paper towel after a flooding treatment and then evaluated for survival. The imbibition of submerged seeds (passive imbibition) was evaluated as the seed fresh weight change during the flooding process. The imbibition of seeds with capillary effect (capillary imbibition) was measured by the bottom water supply method. Furthermore, the conductivity of the seed coat and seed osmolarity were measured. After 3h of flooding, significant differences in survival were detected among cultivars. In addition, the passive imbibition during 10-30min of flooding, and the capillary imbibition during 0-10min of flooding were caused by significant differences in the imbibition rate among cultivars. Although neither imbibition showed a significant correlation with the survival directly, the ratio between the passive and the capillary imbibition rate was significantly correlated with survival. Factors affecting imbibition included the hydraulic conductivity of the seed coat and seed osmolarity, which were significantly correlated with the passive and the capillary imbibition rate, respectively. Thus, the balance between the capillary and passive imbibition behaviour of seeds, affected by the hydraulic conductivity of the seed coat and seed osmolarity, was closely correlated with the occurrence of flooding injury in soybean seeds

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Water Uptake by Seeds in Yellow-seeded Soybean (Glycine max(L.) Merrill) Cultivars with Contrasting Imbibition Behaviors

Cited by 17 publications

References 21 publications

Grain Legumes

Grain Legumes

Evaluation of Metabolite Alteration under Flooding Stress in Soybeans

Two imbibition properties independently influence the cultivar-specific flooding tolerance of dried soybean seeds

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