Changes in cell wall composition and ultrastructure related to desiccation during the seed maturation of Paubrasilia echinata (brazilwood)

Mescia, Tatiana Botelho; Louro, Ricardo Pereira; Barbedo, Claudio José; Carbonero, Elaine R.; Figueiredo-Ribeiro, Rita de Cássia L.; Braga, Márcia R.

doi:10.1007/s00709-021-01731-0

Cited by 6 publications

(4 citation statements)

References 70 publications

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“…Hence, the accumulation of these carbohydrates can play a role in reducing seed deterioration, thereby contributing to seed longevity [ 64 ]. These results are consistent with those reported in Paubrasilia echinata [ 65 ] and Glycine max [ 66 ]. Higher longevity in L. royleana seeds compared to L. iberica seeds was probably due to lower oil content in L. royleana seeds [ 1 ].…”

Section: Discussionsupporting

confidence: 93%

Moisture content and mycorrhizal fungi in maternal environment influence performance and composition of Lallemantia species offspring

Paravar,

Maleki Farahani,

Rezazadeh

et al. 2024

Heliyon

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Section: Discussionsupporting

confidence: 93%

Moisture content and mycorrhizal fungi in maternal environment influence performance and composition of Lallemantia species offspring

Paravar,

Maleki Farahani,

Rezazadeh

et al. 2024

Heliyon

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“…We believe that the Ara or Gal side chains of RG-I play a critical role in the ability of CWs to remain flexible during plant growth and may have important functions in relation to the absorbance of water content upon seed imbibition. The importance of these ramifications has recently been linked to salt tolerance via hydration of the seed endosperm during germination [118], and to the induction of tolerance in seeds to dehydration [119]. Further studies on the relationship between RG-I side chains and CW flexibility may provide novel perspectives to understand the role of these polysaccharides in the life of the plant.…”

Section: Discussionmentioning

confidence: 99%

The Genetic Control of SEEDSTICK and LEUNIG-HOMOLOG in Seed and Fruit Development: New Insights into Cell Wall Control

Marzo

Babolin

Viana

et al. 2022

Plants

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Although much is known about seed and fruit development at the molecular level, many gaps remain in our understanding of how cell wall modifications can impact developmental processes in plants, as well as how biomechanical alterations influence seed and fruit growth. Mutants of Arabidopsis thaliana constitute an excellent tool to study the function of gene families devoted to cell wall biogenesis. We have characterized a collection of lines carrying mutations in representative cell wall-related genes for seed and fruit size developmental defects, as well as altered germination rates. We have linked these studies to cell wall composition and structure. Interestingly, we have found that disruption of genes involved in pectin maturation and hemicellulose deposition strongly influence germination dynamics. Finally, we focused on two transcriptional regulators, SEEDSTICK (STK) and LEUNIG-HOMOLOG (LUH), which positively regulate seed growth. Herein, we demonstrate that these factors regulate specific aspects of cell wall properties such as pectin distribution. We propose a model wherein changes in seed coat structure due to alterations in the xyloglucan-cellulose matrix deposition and pectin maturation are critical for organ growth and germination. The results demonstrate the importance of cell wall properties and remodeling of polysaccharides as major factors responsible for seed development.

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“…For instance, sucrose and RFOs, accumulate in the seeds of Erythrina speciosa , a Brazilian native tree, before significant changes in water content and are re-allocated from vacuole reserves to the cytosol late in seed maturation [ 107 ]. It has been postulated that they might help in maintaining the liquid crystalline condition of the cellular membranes in the dry state and are positively linked with desiccation tolerance as well as with seed longevity [ 108 ]. On the other hand, the Brazilwood seeds mainly show orthodox behavior and survive the desiccation during their maturation due to the accumulation of sugar alcohols like galactopinitol-A, galactopinitol-B, ciceritol, and lipids [ 109–111 ].…”

Section: Role Of Rfo In Regulating Plant Seed Vigor and Longevitymentioning

confidence: 99%

Raffinose family oligosaccharides (RFOs): role in seed vigor and longevity

Salvi

Varshney²,

Majee

2022

Bioscience Reports

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Seed vigor and longevity are important agronomic attributes, as they are essentially associated with crop yield and thus the global economy. Seed longevity is a measure of seed viability and the most essential property in gene bank management since it affects regeneration of seed recycling. Reduced seed life or storability is a serious issue in seed storage since germplasm conservation and agricultural enhancement initiatives rely on it. The irreversible and ongoing process of seed deterioration comprises a complex gene regulatory network and altered metabolism that results in membrane damage, DNA integrity loss, mitochondrial dysregulation, protein damage, and disrupted antioxidative machinery. Carbohydrates and/or sugars, primarily RFOs, have emerged as feasible components for boosting or increasing seed vigor and longevity in recent years. RFOs are known to perform diverse functions in plants, including abiotic and biotic stress tolerance, besides being involved in regulating seed germination, desiccation tolerance, vigor, and longevity. We emphasised and analysed the potential impact of RFOs on seed vigor and longevity in this review. Here, we comprehensively reviewed the molecular mechanisms involved in seed longevity, RFO metabolism, and how RFO content is critical and linked with seed vigor and longevity. Further molecular basis, biotechnological approaches, and CRISPR/Cas applications have been discussed briefly for the improvement of seed attributes and ultimately crop production. Likewise, we suggest advancements, challenges, and future possibilities in this area.

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Changes in cell wall composition and ultrastructure related to desiccation during the seed maturation of Paubrasilia echinata (brazilwood)

Cited by 6 publications

References 70 publications

Moisture content and mycorrhizal fungi in maternal environment influence performance and composition of Lallemantia species offspring

Moisture content and mycorrhizal fungi in maternal environment influence performance and composition of Lallemantia species offspring

The Genetic Control of SEEDSTICK and LEUNIG-HOMOLOG in Seed and Fruit Development: New Insights into Cell Wall Control

Raffinose family oligosaccharides (RFOs): role in seed vigor and longevity

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