Low levels of reserve carbohydrates in reed (Phragmites australis) stands of Kis-Balaton, Hungary

Čı́žková, Hana; Istvánovics, Vera; Bauer, Václav; Balázs, Läszlö

doi:10.1016/s0304-3770(01)00139-5

Cited by 17 publications

(5 citation statements)

References 16 publications

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“…Total nonstructural carbohydrates (TNC) concentrations in rhizomes decreased with lower salinities (lower electrical conductivities), which could reflect the depletion of rhizome reserves due to growth stimulation under brackish conditions, where S. densiflora has been described as a highly competitive species (Costa et al 2003). Depletion of carbohydrate reserves during rapid growth has been reported in several other submersed and emergent aquatic plants such as Phragmites australis (Granéli et al 1992;Č ižková et al 2001), Egeria densa (Pennington and Sytsma 2009), and Myriophyllum spicatum (Perkins and Sytsma 1987;Madsen 1997). Rhizome dynamics are very important in salt marsh development in a changing world since rhizome accumulation is key to maintaining soil volume with b Fig.…”

Section: Discussionmentioning

confidence: 97%

Variation in tussock architecture of the invasive cordgrass Spartina densiflora along the Pacific Coast of North America

et al. 2016

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Some introduced species spread rapidly beyond their native range and into novel habitats mediated by a high degree of phenotypic plasticity and/or rapid evolutionary responses. In this context, clonality has been described as a significant factor contributing to invasiveness. We studied the abiotic environment and the responses of different tussock architecture traits of the invasive cordgrass Spartina densiflora Brongn. (Poaceae). A common garden experiment and field studies of S. densiflora in salt marshes across a wide latitudinal gradient from California (USA) to British Columbia (Canada) provided a model system for an integrated study of the potential mechanisms underlying the response of invasive S. densiflora populations to changes in environmental conditions. Our results showed that S. densiflora is able to adjust to widely variable climate (specifically, air temperature and the duration of the growing season) and sediment conditions (specifically, texture and hypoxia) through phenotypical plastic key functional tussock traits (e.g. shoot density, height, above-and below-ground biomass allocation patterns). Root biomass increased in coarser sediments in contrast to rhizomes, which were more abundant in finer sediments. Above-ground biomass and leaf area index increased mainly with air temperature during summer, and more robust (taller and wider) shoots were associated with more oxygenated sediments. In view of our results, S. densiflora appears to be a halophyte with a high degree of phenotypic plasticity that would enable it to respond successfully to changes in the abiotic conditions of salt marshes driven by global climate change, such as increasing salinity and temperatures.

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Section: Discussionmentioning

confidence: 97%

Variation in tussock architecture of the invasive cordgrass Spartina densiflora along the Pacific Coast of North America

et al. 2016

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“…In the present study, TNC content of rhizomes were reduced by 56% from February to March (205.3–91.1 g m −2 ). For P. australis , the carbohydrates depleted to a greater degree at Lake Burullus in Egypt than at some European sites: 33% in Sweden (Granéli et al ) and 30–50% in Swiss (Čížková et al ). The fact that the TNC content was depleted by 56% at Lake Burullus sites implies that 44% of the TNC content remains available for possible recovery from a subsequent catastrophic event.…”

Section: Discussionmentioning

confidence: 99%

“…Assuming that the same amount is needed for the recovery as was used for spring re‐growth, the minimum TNC content would not suffice to support full recovery sites of Lake Burullus. This indicates that T. domingensis population may be more vulnerable to shoot damage or removal as compared with P. australis populations at some European sites with higher carbohydrate reserves (Čížková et al ).…”

Section: Discussionmentioning

confidence: 99%

Seasonal allocation of carbohydrates between above‐ and below‐ground organs of Typha domingensis

Eid

Shaltout

2016

Feddes Repertorium

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Seasonal carbohydrates allocation by Typha domingensis was evaluated to identify the potential physiological weaknesses in the growth cycle of this plant in Lake Burullus, Egypt. Monthly plant samples (February–October 2014) were separated into shoots, roots and rhizomes to evaluate the seasonal changes in water‐soluble carbohydrates (WSC), starch and total non‐structural carbohydrates (TNC) for each plant organ. The present study indicated that rhizomes are strong carbohydrates sink during the life cycle of T. domingensis. Starch represented the greatest part of the TNC pool, surpassing the concentration of WSC 1.8–4.3 times. The WSC, starch and TNC concentrations of T. domingensis below‐ground organs (rhizomes and roots) were high at the beginning of the vegetative period (February); they reached their minima in March to support the shoots growth, then were followed by a gradual increase due to the translocation from shoots. The time when T. domingensis is expected to be most susceptible to a management technique is at the point in the seasonal cycle when the stored carbohydrates are at the lowest (in March).

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“…In addition to variable biomass production, carbohydrate allocation patterns in common reed can be affected by plant age, nutrients in the sediment, location, trophic status, and time of year (Č ížková and Bauer 1998;Č ížková et al 1996;Fiala 1976;Kilmeš et al 1999;Tylová et al 2008). Total carbohydrates within common reed tend to decrease during spring growth, sometimes by as much as 60% (Č ížková et al 2001), then rapidly increase from July to September, and then decrease again during winter (Asaeda et al 2006;Č ížková et al 1996, Č ížková et al 2001Granéli et al 1992). In some instances, the carbohydrate reserves were restored as early as June (Granéli et al 1992).…”

Section: Discussionmentioning

confidence: 99%

“…The area inside the quadrat was harvested by cutting aboveground biomass at the sediment line. Belowground biomass was harvested by digging sediment from the quadrat to a depth of 30 cm to collect roots and rhizomes (Č ížková et al 2001;League et al 2006). Belowground biomass refers to all underground plant tissues (rhizomes and roots) as no differentiation was made during collection or processing.…”

Section: Methodsmentioning

confidence: 99%

Seasonal Biomass and Starch Allocation of Common Reed (Phragmites australis) (Haplotype I) in Southern Alabama, USA

Wersal

Madsen

Cheshier

2013

Invasive plant sci. manag.

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Common reed (Phragmites australis) is a nonnative invasive perennial grass that is problematic in aquatic and riparian environments across the United States. Common reed often forms monotypic stands that displace native vegetation which provide food and cover for wildlife. To help maintain native habitats and manage populations of common reed in the United States, an understanding of its life history and starch allocation patterns are needed. Monthly biomass samples were harvested from sites throughout the Mobile River delta in southern Alabama, USA from January 2006 to December 2007 to quantify seasonal biomass and starch allocation patterns. Total biomass of common reed throughout the study was between 1375 and 3718 g m−2 depending on the season. Maximum aboveground biomass was 2200 ± 220 g m−2 in October of 2006 and 1302 ± 88 g m−2 in December of 2007. Maximum belowground biomass was seen in November of 2006 and 2007 with 1602 ± 233 and 1610 ± 517 g m−2 respectively. Biomass was related to ambient temperature, in that, as temperature decreased aboveground biomass (p = 0.05) decreased. Decreases in aboveground biomass were followed by an increase in belowground biomass (p < 0.01). Starch comprised 1 to 10% of aboveground biomass with peak temporary storage occurring in July and August 2006 and September to November of 2007. Belowground tissues stored the majority of starch for common reed regardless of the time of year. Overall, belowground tissues stored 5 to 20% of total starch for common reed with peak storage occurring in December 2006 and October 2007. Starch allocation to belowground tissues increased as temperatures decreased. Understanding seasonal life history patterns can provide information to guide management strategies by identifying the vulnerable points in biomass and starch reserves in common reed.

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Low levels of reserve carbohydrates in reed (Phragmites australis) stands of Kis-Balaton, Hungary

Cited by 17 publications

References 16 publications

Variation in tussock architecture of the invasive cordgrass Spartina densiflora along the Pacific Coast of North America

Variation in tussock architecture of the invasive cordgrass Spartina densiflora along the Pacific Coast of North America

Seasonal allocation of carbohydrates between above‐ and below‐ground organs of Typha domingensis

Seasonal Biomass and Starch Allocation of Common Reed (Phragmites australis) (Haplotype I) in Southern Alabama, USA

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