Advertisement

Topics

Seed size and burial depth influence Zostera marina L. (eelgrass) seed survival, seedling emergence and initial seedling biomass development.

08:00 EDT 11th April 2019 | BioPortfolio

Summary of "Seed size and burial depth influence Zostera marina L. (eelgrass) seed survival, seedling emergence and initial seedling biomass development."

Seed burial in the sediment is critical for successful seedling establishment in seagrasses because it protects from predation and dispersal into unsuitable sites, and it may enhance germination by exposing the seeds to suitable germination stimuli. However, relatively little is known about the fate of buried seeds and their ability to emerge from greater depths. The goal of this study was to determine seed survival in the sediment, seedling emergence success and initial seedling biomass of Zostera marina in relation to burial depth and to evaluate if large seeds, having larger energy reserves, are more tolerant to burial than small seeds. Seeds from a perennial Z. marina population were buried at 7 different sediment depths (0.1-8 cm), and seeds sorted by size (large and small) were buried at depths of 2, 4 and 6 cm in outdoor mesocosms. Total seedling emergence after 2 months was significantly affected by seed burial depth, with maximum values in the top 2 cm of the sediment (48.1-56.7% of planted seeds), and a marked decline below 4 cm depth to only 5% seedling emergence at the deepest burial depth of 8 cm. Moreover, seeds had shorter time to emergence from shallow compared to deep burial depths. At all burial depths, a small fraction of seeds (<10%) died after germination but before emerging, and 15-30% remained viable after 6 months. Seed mortality was the major limitation to seedling recruitment from the deeper burial depths. The effect of seed size on seedling emergence success and time was not clear, but heavier seeds displayed greater longevity and gave rise to seedlings of significantly higher biomass, indicating that the mobilization of metabolic reserves may be important during initial seedling development.

Affiliation

Journal Details

This article was published in the following journal.

Name: PloS one
ISSN: 1932-6203
Pages: e0215157

Links

DeepDyve research library

PubMed Articles [11798 Associated PubMed Articles listed on BioPortfolio]

A Novel Phagomyxid Parasite Produces Sporangia in Root Hair Galls of Eelgrass (Zostera marina).

The objective of this study was to identify the parasite causing the formation of root hair galls on eelgrass (Zostera marina) in Puget Sound, WA. Microscopic and molecular analyses revealed that a no...

Physiological responses of eelgrass (Zostera marina) to ambient stresses such as herbicide, insufficient light, and high water temperature.

This study aimed to elucidate the biological responses of eelgrass (Zostera marina) to artificially induced stresses such as herbicide (Irgarol 1051, Irg) exposure, insufficient light, and high water ...

The distribution of large floating seagrass (Zostera marina) aggregations in northern temperate zones of Bohai Bay in the Bohai Sea, China.

Seagrass meadows (Zostera marina) are important coastal ecosystems with high levels of productivity and biodiversity. They often have high biomass turnover and are susceptible to dislodgment, leading ...

Interaction of high seawater temperature and light intensity on photosynthetic electron transport of eelgrass (Zostera marina L.).

The interaction of widely recognized causes of eelgrass decline (high seawater temperature and limited light intensity) on photosynthetic electron transport was investigated via chlorophyll fluorescen...

Explaining the larger seed bank of an invasive shrub in non-native versus native environments by differences in seed predation and plant size.

Large, persistent seed banks contribute to the invasiveness of non-native plants, and maternal plant size is an important contributory factor. We explored the relationships between plant vegetative si...

Clinical Trials [4404 Associated Clinical Trials listed on BioPortfolio]

The Influence of Satiation Measures on the Portion Size Effect

The purpose of this study is to gain a better understanding of the satiation measures that influence human eating behavior in regard to intake of large portion sizes at a meal. The investi...

Treatment of Candidal Vulvovaginitis Using Cumin Seed Extract Vaginal Cream.

Fungal infections have increased over the last two decades, largely because of the increasing size of the population at risk, including patients who are immunocompromised, broad-spectrum a...

The Effect of Grape Seed Extract on Blood Pressure in People With Pre-Hypertension

In this research study, the investigators are interested in learning how extracts from grape seeds can help those individuals with high blood pressure. The investigators also hope to learn...

Treatment of Bronchial Asthma With Borage and Echium Seed Oils

The aim of this trial is to determine the efficacy of a combination of two botanicals oils, borage seed oil and echium seed oil, as a potential treatment for bronchial asthma.

The Effect of Grape Seed Extract on Estrogen Levels of Postmenopausal Women

The role of estrogens in the pathogenesis of breast cancer has been well documented. This has led to the development of "Anti-Estrogens" (selective estrogens receptor modulators and Aromat...

Medical and Biotech [MESH] Definitions

One or more types of plant seed proteins providing the large amounts of AMINO ACIDS utilized in GERMINATION and SEEDLING growth. As seeds are the major food source from AGRICULTURAL CROPS, seed storage proteins are a major source of DIETARY PROTEINS.

A subset of various vascular plants (also known as the Tracheophyta) which include seed-bearing and non seed-bearing species.

The state of failure to complete the process of GERMINATION of an intact viable seed, due to intrinsic physical, molecular, genetic, or physiological parameters under otherwise favourable prevailing conditions.

A repository of seeds maintained under optimal conditions that ensure long term storage, intended for use as a source of replenishment of seed stock or plant genetic material.

Areas set apart as burial grounds.

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article