Implications of Environmental Stress during Seed Development on Reproductive and Seed Bank Persistence Traits in Wild Oat (Avena fatua L.)

Gallagher, Robert S.; Granger, Kristen L.; Snyder, A. Peter; Pittmann, Dennis; Fuerst, E. Patrick

doi:10.3390/agronomy3030537

Cited by 15 publications

(12 citation statements)

References 23 publications

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“…The authors showed that the content and ratios of 11S/7S proteins were varied among the seven varieties. Normally field conditions encompass genotypes of stress conditions which are not favorable to growth and development of seeds (Gallagher, Granger, Snyder, Pittmann, & Fuerst, ). The predominant abiotic stress in the field conditions are heat and drought which reduces the carbon fixation by the photosynthetic apparatus (Eldakak, Milad, Nawar, & Rohila, ; Farooq, Wahid, Kobayashi, Fujita, & Basra, ).…”

Section: Resultsmentioning

confidence: 99%

Proteomic and metabolomic analysis of minimax and Williams 82 soybeans grown under two different conditions

et al. 2017

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MiniMax was developed as a model soybean for research because of its small stature, limited planting space, and rapid generation time. In the present study, the proteins, isoflavones, and fatty acid methyl esters (FAMEs) were compared between dwarf (MiniMax) and commercially cultivated (Williams 82) soybean genotypes under two growing conditions (greenhouse and field). The protein profile of the soybean extracts by 2D‐PAGE showed at least 16 of 716 spots that were differently expressed in MiniMax and Williams 82. These spots were primarily six proteins namely, seed biotin, β‐conglycinin, glycinin, seed‐maturation protein, glutathione‐S‐transferase, and sucrose binding protein. In both genotypes, higher content of isoflavone aglycones was observed in greenhouse grown samples as compared to the field grown samples. However, only field grown Willams 82 had higher levels of FAMEs as compared to other three groups. This study shows that both growing conditions and cultivars significantly influence the compositional content of metabolites. Practical applications The global demand of soybean and its products has increased due to its high protein and isoflavones content. Researchers are actively developing new genotypes with improved yields, greater drought and disease tolerance, and reduced growth time. MiniMax, a dwarf genotype of soybean showed early flowering, seed setting, and maturation traits due to its multiple dwarfing genes. This characteristic feature enables researchers to study effects of various treatments on soybean in a shorter period with multiple replications in a single growing season.

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Section: Resultsmentioning

confidence: 99%

Proteomic and metabolomic analysis of minimax and Williams 82 soybeans grown under two different conditions

et al. 2017

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“…Species with a wide range of adaptive abilities show diversity in germination of seeds collected from plants grown in different habitats and subjected to differing environmental conditions [15,16]. The habitats investigated in our study differed with respect to soil/climate conditions and crop species with differing competitive ability which determined light access to weeds.…”

Section: Discussionmentioning

confidence: 98%

Influence of environmental conditions and crop competition on morphological and biological diversity of Avena fatua L. and Solanum nigrum L.

Kieloch

Golebiowska

2018

Acta Agrobot

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This study investigated the effects of climate/soil conditions and crop competition on selected morphological traits, biomass productivity and some other biological aspects of the weedy species Avena fatua L. and Solanum nigrum L. The species examined came from arable fields differing with respect to soil type and crop species according to the following pattern: A. fatua (in maize -brown soil, in spring wheat -podsolic soil), S. nigrum (in maize -brown soil, in potatoes -podsolic soil). The investigations included measurements in their original habitats and in a controlled environment. Plants grown on fields with brown soil reached higher values of the evaluated traits as compared to those recorded for plants grown on a podsolic soil. The height of A. fatua was similar in both habitats because competitive ability of the crop balanced the soil effect. There were no differences in plant morphology and biomass productivity within the two species when plants were grown in the same soil/climate conditions but on different soils S. nigrum exhibited variation in plant height and biomass productivity. Both species similarly responded to reduced light that revealed differences between them in chlorophyll content. Seeds of A. fatua and S. nigrum, regardless of their origin, germinated better in darkness than in the light and seeds of both species were more able to germinate when they were collected from plants grown in the light conditions from above the crop canopy. All seeds of S. nigrum also germinated better under warm conditions (20°C).

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“…This dormancy strategy works best for annual weeds whose seeds often show conditional, light-mediated dormancy. Drought and shade were found to reduce reproductive allocation and resulted in seed of Avena fatua with less intense primary dormancy than the plants grown under resource-rich conditions, but had no apparent effect on seed vigor [80].…”

Section: Factors Enhance Seed Germination and Dormancy Breakingmentioning

confidence: 89%

Weed Seed Dormancy: The Ecophysiology and Survival Strategies

Qasem¹

2020

Seed Dormancy and Germination

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This chapter deals with seed dormancy of agricultural weeds, its definitions and types from the physiological and ecological point of view, and physiological and ecological factors inducing dormancy in different weed species. The role of different environmental factors, agricultural practices including herbicides application, selection pressure, and seasonal dormancy, weed density and population regulation, seed phenology, polymorphism, and modifications were emphasized. Factors induce or terminate dormancy and enhance seed germination and dormancy breaking have been mentioned and evaluated in addition to the ecological importance of seed dormancy and herbicide resistance, genetic bases of dormancy, and molecular studies were presented. The role of allelochemicals, stresses, and dormancy and their effects on seed longevity and germination regulation were thoroughly discussed. Dormancy breaking under laboratory conditions, role of plant hormones and other chemicals, and dormancy management in the field were reviewed in addition to information on seed dormancy/longevity and germination stimulants. Seed germination stimulants and inhibitors of parasitic weed and seed dormancy as a weed survival strategy were presented and discussed.

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Implications of Environmental Stress during Seed Development on Reproductive and Seed Bank Persistence Traits in Wild Oat (Avena fatua L.)

Cited by 15 publications

References 23 publications

Proteomic and metabolomic analysis of minimax and Williams 82 soybeans grown under two different conditions

Proteomic and metabolomic analysis of minimax and Williams 82 soybeans grown under two different conditions

Influence of environmental conditions and crop competition on morphological and biological diversity of Avena fatua L. and Solanum nigrum L.

Weed Seed Dormancy: The Ecophysiology and Survival Strategies

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