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Propagation of goldenrod (Solidago canadensis L.) from leaf and nodal explants

100%

Li J., Kang Y., Qiang S., Peng G.

Acta Societatis Botanicorum Poloniae

2012

tom 81

nr 1

Goldenrod (Solidago canadensis L.) is an invasive plant species in many countries except North America but a cut-flower species worldwide. There is a need to generate and propagate goldenrod clones efficiently for research and commercial purposes. A callus induction and plantlet regeneration system was developed by studying the influence of explant type and different concentrations of plant growth regulators. The highest callus production from leaf segments was obtained on Murashige and Skoog's medium (MS medium) supplemented with 1.0 mg/L naphthalene acetic acid (NAA) and 1.0 mg/L 6-benzylaminopurine (BA). Adventitious shoots could be regenerated directly from leaf explants without an intermediate callus phase with the highest shoot induction percentage of 87.2%. The largest number of adventitious shoots per leaf explant (3.2) was obtained on MS medium supplemented with 0.4 mg/L NAA and 2.0 mg/L BA. MS medium supplemented with 0.1 mg/L NAA and 1.0 mg/L BA was the best medium for axillary shoot regeneration from nodal segments. The highest root number and longest roots occurred on half-strength MS without the addition of any growth regulator. Rooted plantlets were then transferred to a soil-based growth medium, placed in a greenhouse, and acclimatized with 100% success. All surviving plants grew normally without showing any morphological variation when compared to those grow from seed. This regeneration protocol may be used to produce certain biotypes of goldenrod suitable for genetic transformation, rapid propagation of goldenrod for commercial purposes or for screening fungi and toxins as potential biocontrol agents against this weed.

Wild food plants and wild edible fungi of Heihe valley ( Qinling Mountains, Shaanxi, central China): herbophilia and indifference to fruits and mushrooms

88%

Kang Y., Luczaj L., Ye S., Zhang S., Kang J.

Acta Societatis Botanicorum Poloniae

2012

tom 81

nr 4

How Chlorella sorokiniana and its high tolerance to Pb might be a potential Pb biosorbent

76%

Liang S., Kang Y., Zeng L., Qin Y., Wang L., Zhang Q., Luo J.

Polish Journal of Environmental Studies

2017

tom 26

nr 3

The link between the acute toxicity of heavy metals on algae and the bioadsorption capacity of heavy metals by algae has seldom been reported. In the present study, an acute toxicity experiment was carried out to assess the toxic effects of Pb, Cu, and Cd for Chlorella sorokiniana, and the 96 h IC₅₀ values were 0.249 mg/L, 0.485 mg/L, 46.108 mg/L, and 21.00 mg/L for Cu, Cd, Pb (total), and Pb (free ion), respectively, which implied that Chlorella sorokiniana showed high tolerance to Pb compared to Cu and Cd. Pb distribution analysis indicated that 73.40% to 98.15% of free Pb ions were accumulated on the algae cell wall to avoid further intracellular accumulation, resulting in irreversible metabolic disorders. Then the adsorption capacity of Chlorella was explored. It could be found that the Langmuir model (the R² were 0.988 and 0.962 for living and lifelss cells, respectively) was fit to explain the adsorption equilibrium data and the qₑ calculated by this model were 1.54 and 2.97 mg /10¹⁰ cells for living and lifeless cells, respectively, which was consistent with the experimental result. In the competitive adsorption, Chlorella exhibited a greater affinity for Pb with the higher removal rate compared to Cu and Ni. Therefore, the renewable Chlorella sorokiniana and its dramatic resistance to Pb may serve as a potential biosorbent for Pb in the future.

Ograniczanie wyników

2 Acta Societatis Botanicorum Poloniae

1 Polish Journal of Environmental Studies

3 Kang Y.

1 Kang J.

1 Li J.

1 Liang S.

1 Luczaj L.

1 Luo J.

1 Peng G.

1 Qiang S.

1 Qin Y.

1 Wang L.

1 Ye S.

1 Zeng L.

1 Zhang Q.

1 Zhang S.

1 2017

2 2012

Wyniki wyszukiwania

Propagation of goldenrod (Solidago canadensis L.) from leaf and nodal explants

Wild food plants and wild edible fungi of Heihe valley ( Qinling Mountains, Shaanxi, central China): herbophilia and indifference to fruits and mushrooms

How Chlorella sorokiniana and its high tolerance to Pb might be a potential Pb biosorbent