Resorption of N, P and K from the floating and submerged leaves of the aquatic fern Salvinia natans

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F22%3A00563246" target="_blank" >RIV/67985939:_____/22:00563246 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.2298/BOTSERB2202253A" target="_blank" >https://doi.org/10.2298/BOTSERB2202253A</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2298/BOTSERB2202253A" target="_blank" >10.2298/BOTSERB2202253A</a>

Result language

angličtina

Original language name

Resorption of N, P and K from the floating and submerged leaves of the aquatic fern Salvinia natans

Original language description

Nutrient resorption from senescing leaves and shoots decreases the nutrient losses associated with biomass turnover and represents a significant component of mineral nutrient economy. In submerged aquatic plants, N and P resorption efficiencies (REN, REP) from senescing leaves or shoots are high (usually > 40% in dry weight, DW), but K resorption efficiency (REK) is usually very low or zero. The free-floating aquatic fern Salvinia natans has a linear, modular shoot structure exhibiting steep growth and a physiological polarity, and consists of oval, floating, natant leaves with photosynthetic functions and thread-like submerged leaves which absorb nutrients. To obtain the basic mineral nutrient characteristics, REN, REP and REK were estimated in the senescent floating and submerged leaves of this species grown in an outdoor culture. The N con-tent in all the leaves was in the range between 1.10-1.42% DW, P 0.33-0.57% DW and K between 4.03-6.20% DW, indicating a partial N growth limitation but a liberal P uptake. Contrary to expectations, the REN values in both types of leaves were relatively low (7-31%), those of REP even negative (-7 to-12%), while the REK values were relatively high (31-44%). These results are in contrast to much higher N and P resorption efficiencies reported in both submerged plants and the similar tropical species S. molesta. The REK values found in S. natans are in accordance with those reported in S. molesta, but are much higher than those in submerged plants. Thus, the submerged leaves (rhizophylls) of the Salvinia species do not behave in the same way as the leaves of higher sub-merged plants in terms of the K economy.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

BOT SERB

ISSN

1821-2158

e-ISSN

1821-2638

Volume of the periodical

46

Issue of the periodical within the volume

2

Country of publishing house

RS - THE REPUBLIC OF SERBIA

Number of pages

6

Pages from-to

253-258

UT code for WoS article

000869448300009

EID of the result in the Scopus database

2-s2.0-85141283262