Growth and photosynthesis of Lemna minor L. exposed to different light conditions and sucrose supplies

Vidaković-Cifrek, Željka; Sorić, Sonja; Babić, Maja

doi:10.2478/v10184-012-0018-4

Cited by 12 publications

(4 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An overhead fluorescent grow light on a 14 hr photoperiod was used for the duration of the experiment. Duckweed grows well under low light levels (e.g., Vidakovič‐Cifrek, Sorić, & Babić, 2013), and we used a light intensity of approximately 25 µmol m −2 s −1 in the PAR range of 400–700 nm.…”

Section: Methodsmentioning

confidence: 99%

Latitudinal variation in norms of reaction of phenology in the greater duckweed Spirodela polyrhiza

Hitsman

Simons

2020

J of Evolutionary Biology

View full text Add to dashboard Cite

Natural environments vary temporally in factors that may affect fitness such as in season length (Yoshifuji et al., 2006), precipitation (Liu & Yin, 2000) and temperature (Aesawy & Hasanean, 1998; Jones & Briffa, 1992). Response to such environmental variation may take several forms, including adaptive tracking, adaptive plasticity, and the evolution of bet-hedging traits. Phenotypic plasticity, the environment-dependent phenotypic expression of a genotype can be adaptive or nonadaptive. Nonadaptive plasticity is generally interpreted as a direct rather than evolved response to environmental differences or stresses (Ghalambor, McKay, Carroll, & Reznick, 2007; Van Kleunen & Fischer, 2005). For example, plasticity in several life-history traits in Arabidopsis thaliana in response to plant density appear to provide no fitness benefit (Dorn, Pyle, & Schmitt, 2000). Adaptive plasticity, when phenotypic change occurs in the same direction as the fitness optimum (Ghalambor et al., 2007), requires environmental cues that reliably indicate

show abstract

Section: Methodsmentioning

confidence: 99%

Latitudinal variation in norms of reaction of phenology in the greater duckweed Spirodela polyrhiza

Hitsman

Simons

2020

J of Evolutionary Biology

View full text Add to dashboard Cite

show abstract

“…While previous studies supplemented the growth medium with sucrose and other substances to facilitate the detection of contaminating microorganisms, this study did not. We made this choice due to the mixotrophic capabilities of L. minor, which can take up and use dissolved sugars as a method of nutrition (Frick, 1994;Vidaković Cifrek et al, 2013). While a study on the effects of heterotrophic caloric restriction would be valuable, we focus solely on autotrophic caloric restriction, as in Minina et al (2013).…”

Section: Growth Conditionsmentioning

confidence: 99%

Caloric restriction extends lifespan in a clonal plant

Chmilar,

Luzardo,

Dutt

et al. 2024

Ecology Letters

View full text Add to dashboard Cite

When subjected to dietary caloric restriction (CR), individual animals often outlive well‐fed conspecifics. Here, we address whether CR also extends lifespan in plants. Whereas caloric intake in animals comes from ingestion, in plants it derives from photosynthesis. Thus, factors that reduce photosynthesis, such as reduced light intensity, can induce CR. In two lab experiments investigating the aquatic macrophyte Lemna minor, we tracked hundreds of individuals longitudinally, with light intensity—and hence, CR—manipulated using neutral‐density filters. In both experiments, CR dramatically increased lifespan through a process of temporal scaling. Moreover, the magnitude of lifespan extension accorded with the assumptions that (a) light intensity positively relates to photosynthesis following Michaelis–Menten kinetics, and (b) photosynthesis negatively relates to lifespan via a power law. Our results emphasize that CR‐mediated lifespan extension applies to autotrophs as well as heterotrophs, and suggest that variation in light intensity has quantitatively predictable effects on plant aging trajectories.

show abstract

“…The control samples contained only distilled water, without duckweed. Duckweed was grown on Steinberg’s growth medium, modified by Altenburger ( Wang, 1990 ; Zhang et al, 2010 ; Vidaković Cifrek, Sorić & Babić, 2013 ; Bergkamp, 2013 ). To limit access to light (twilight), the walls of the beaker were shaded (covered with aluminium foil), and the bottom and top of the beaker remained transparent ( Table 1 ).…”

Section: Methodsmentioning

confidence: 99%

Preliminary studies of selected Lemna species on the oxygen production potential in relation to some ecological factors

Sender,

Różańska-Boczula

2024

PeerJ

View full text Add to dashboard Cite

Dissolved oxygen is fundamental for chemical and biochemical processes occurring in natural waters and critical for the life of aquatic organisms. Many organisms are responsible for altering organic matter and oxygen transfers across ecosystem or habitat boundaries and, thus, engineering the oxygen balance of the system. Due to such Lemna features as small size, simple structure, vegetative reproduction and rapid growth, as well as frequent mass occurrence in the form of thick mats, they make them very effective in oxygenating water. The research was undertaken to assess the impact of various species of duckweed (L. minor and L. trisulca) on dissolved oxygen content and detritus production in water and the role of ecological factors (light, atmospheric pressure, conductivity, and temperature) in this process. For this purpose, experiments were carried out with combinations of L. minor and L. trisulca. On this basis, the content of oxygen dissolved in water was determined depending on the growth of duckweed. Linear regression models were developed to assess the dynamics of changes in oxygen content and, consequently, organic matter produced by the Lemna. The research showed that the presence of L. trisulca causes an increase in dissolved oxygen content in water. It was also shown that an increase in atmospheric pressure had a positive effect on the ability of duckweed to produce oxygen, regardless of its type. The negative correlation between conductivity and water oxygenation, obtained in conditions of limited light access, allows us to assume that higher water conductivity limits oxygen production by all combinations of duckweeds when the light supply is low. Based on the developed models, it was shown that the highest increase in organic matter would be observed in the case of mixed duckweed and the lowest in the presence of the L. minor species, regardless of light conditions. Moreover, it was shown that pleustophytes have different heat capacities, and L. trisulca has the highest ability to accumulate heat in water for the tested duckweed combinations. The provided knowledge may help determine the good habitat conditions of duckweed, indicating its role in purifying water reservoirs as an effect of producing organic matter and shaping oxygen conditions with the participation of various Lemna species.

show abstract

Growth and photosynthesis of Lemna minor L. exposed to different light conditions and sucrose supplies

Cited by 12 publications

References 27 publications

Latitudinal variation in norms of reaction of phenology in the greater duckweed Spirodela polyrhiza

Latitudinal variation in norms of reaction of phenology in the greater duckweed Spirodela polyrhiza

Caloric restriction extends lifespan in a clonal plant

Preliminary studies of selected Lemna species on the oxygen production potential in relation to some ecological factors

Contact Info

Product

Resources

About