Possible direct uptake of organic nitrogen from soil by chingensai (Brassica campestris L.) and carrot (Daucus carota L.)

Matsumoto, Shingo; Ae, Noriharu; Yamagata, Makoto

doi:10.1016/s0038-0717(00)00048-1

Cited by 42 publications

(27 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This result is contradictory to the results reported by Matsumoto et al (2000c); when PEON solution was added to N-free MS liquid medium qing-geng-cai grew better than the control. However, these researchers used N-free MS medium as the control, which should have had the highest osmotic pressure among all the treatments.…”

Section: Discussioncontrasting

confidence: 99%

“…Another difference between the two studies is the PEON purification procedure. We discarded PEON fractions that were out of the range of 6,000-11,000 Da, whereas Matsumoto et al (2000c) did not further separate PEON fractions. However, it is unlikely that the discarded fraction in our experiment was the actual N supply for plants.…”

Section: Discussionmentioning

confidence: 99%

“…If intact PEON were also an organic N source to be absorbed and used by plants, as hypothesized in the studies described above, the paradigm change in the terrestrial N cycle could be much more substantial than that of amino acids; the quantity of PEON in the soil is much higher than that of free amino acids (Lipson and Näsholm et al 2001;Matsumoto et al 2000c (Inagaki and Kohzu 2005;Näsholm et al 2000). Plant dry weight increased by up to 30% when plant roots were supplied with dissolved inorganic C (Bialczyk et al 1996;Vapaavuori and Pelkonen 1985).…”

Section: Introductionmentioning

confidence: 95%

“…We tested the growth of two vegetable species under aseptic conditions with three N sources to investigate whether plants use PEON as a source of N and C. We used leaf lettuce (Lactuca sativa L.) and qing-geng-cai (Brassica chinensis L.; "chingensai" in Japanese) because the results of previous experiments suggested that leaf lettuce depends mainly on inorganic N, whereas qing-geng-cai is capable of absorbing PEON (Matsumoto et al 1999(Matsumoto et al , 2000c. The experiments were conducted under five different levels of light intensity to detect, indirectly, the contribution of C from the organic supplements to plant growth.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Can plants absorb and utilize phosphate buffer extractable soil organic nitrogen without its prior mineralization?

Miyazawa

Murayama

Takeda

2008

Soil Science and Plant Nutrition

View full text Add to dashboard Cite

Several researchers have hypothesized that organic nitrogen extracted using neutral phosphate buffer, termed phosphate buffer extractable organic nitrogen (PEON), is absorbed and utilized by some plant species as a nitrogen source without prior mineralization. Earlier reports have suggested that leaf lettuce (Lactuca sativa L.) depends mainly on inorganic nitrogen, whereas qing-geng-cai (Brassica chinensis L.) can absorb PEON. We tested leaf lettuce and qing-geng-cai growth under aseptic conditions using three nitrogen sources under different light conditions to investigate this hypothesis. Nitrate, amino acids or purified PEON were supplied as the sole nitrogen source. Five different levels of light intensity were used to detect the contribution of carbon to plant growth supplied from PEON. Leaf lettuce growth was promoted only by nitrate, whereas growth of qing-geng-cai was promoted by nitrate and amino acids. The positive effect of amino acids on qing-geng-cai was pronounced at higher light intensity. However, PEON imparted no significant effect on either of the plants under any of the light conditions. Our results do not support the hypothesis that PEON is used as a nitrogen source by plants.

show abstract

Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Can plants absorb and utilize phosphate buffer extractable soil organic nitrogen without its prior mineralization?

Miyazawa

Murayama

Takeda

2008

Soil Science and Plant Nutrition

View full text Add to dashboard Cite

show abstract

“…Due to the large quantities of inorganic N fertilizers that are applied to obtain high crop yields the importance of organic N may be insignificant for crops under conventional agriculture. Despite this, a growing body of evidence shows that some agricultural plant species are able to take up organic N in the form of amino acids under artificial conditions (Virtanen and Linkola 1946;Shobert and Komor 1987;Jones and Darrah 1994;Okamoto and Okada 2004), as well as under field conditions (Yamagata and Ae 1999;Matsumoto et al 2000;Näsholm et al 2000Näsholm et al , 2001.…”

Section: Introductionmentioning

confidence: 99%

Light affects competition for inorganic and organic nitrogen between maize and rhizosphere microorganisms

Stange

Richter

et al. 2007

Plant Soil

View full text Add to dashboard Cite

Organic fertilizers derived from plant materials Part II: Turnover in field trials

Müller

Niemsdorff

2006

Z. Pflanzenernähr. Bodenk.

View full text Add to dashboard Cite

Our aim was to investigate two different organic fertilizers derived from plant materials (OFDP) with respect to their nitrogen (N) and carbon (C) turnover in field trials planted with small radish (Raphanus sativus L. var. sativus) and white cabbage (Brassica oleracea L. convar. capitata var. alba) or fallow. The two fertilizers investigated were coarse seed meal of yellow lupin (Lupinus luteus L.) and coarse meal of castor cake (Ricinus communis L.). Under cool spring conditions, the soil turnover of yellow lupin-seed meal was slightly enhanced compared to castor-cake meal. During the vegetation period of the vegetables, N added with both fertilizers was metabolized more or less completely by soil microorganisms. Due to similar efficiencies of the fertilizers tested, no significant difference could be found in the N uptake of plants. From this point of view, yellow lupin-seed meal, which can be produced by farmers themselves, has the potential to replace the widely used castor-cake meal. Considerable amounts of N may remain in the field after fertilization with OFDPs either as mineral N or as easily mineralizable organic N. This N should be utilized immediately by a succeeding crop to avoid leaching losses.Key words: castor cake / lupin-seed meal / nitrogen turnover / organic fertilizers / small radish / white cabbage

show abstract

Possible direct uptake of organic nitrogen from soil by chingensai (Brassica campestris L.) and carrot (Daucus carota L.)

Cited by 42 publications

References 23 publications

Can plants absorb and utilize phosphate buffer extractable soil organic nitrogen without its prior mineralization?

Can plants absorb and utilize phosphate buffer extractable soil organic nitrogen without its prior mineralization?

Light affects competition for inorganic and organic nitrogen between maize and rhizosphere microorganisms

Organic fertilizers derived from plant materials Part II: Turnover in field trials

Contact Info

Product

Resources

About