Systemic Regulation of Soybean Nodulation by Acidic Growth Conditions

Lin, Ming-Huei; Gresshoff, Peter M.; Ferguson, Brett J.

doi:10.1104/pp.112.204149

Cited by 69 publications

(65 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…4). Lin et al (2012) reported similar result that shoot dry weight in pH 6.8 and pH 4 is not significantly different. Different result was reported by Murata et al (2003) that decreasing solution pH and Ca concentration decreased the shoot dry weight.…”

Section: Resultssupporting

confidence: 54%

Frugivorous bird characteristic of seed disperser in shrubland tropical forest West Java, Indonesia

Kuswantoro

2017

Biodiversitas

View full text Add to dashboard Cite

Abstract. Kuswantoro H. 2016. Differential response of roots growth of soybean germplasm under low pH and manganese toxicity. . Most of Indonesia dry land are covered by acid soil. The growth and development of the plant in this acid soil cope with low pH and micronutrients toxicity. The objective of this research was to study the response of root growth of soybean germplams to low pH and manganese toxicity. Nine soybean germplasm were treated in aquadest with pH 7 as control, aquadest with pH 4, and 75 ppm Mn with pH 4 in Seed Laboratory of Indonesian Legume and Tuber Crops Research Institute, Malang, Indonesia. Results showed that root length, number of lateral roots, root dry weight were lower in low pH and Mn toxicity than in the control. Shoot dry weight, hypocotyl length and epicotyl length were not influenced by low pH and Mn toxicity. Some genotypes showed increasing root length in low pH, and increasing number of lateral roots and root dry weight in Mn toxicity. Based on the acid soil adaptation index (ASAI) on root length, MLGG 0493 and MLGG 0496 showed the highest value index in three comparative conditions. The genotype of MLGG 0496 also showed the highest ASAI value on numbers of lateral root in three comparative conditions. MLGG 0494 achieved the highest ASAI value of root dry weight. However, the use of root dry weight as a criterion in soybean adaptation in low pH and Mn toxicity should be studied further because the tolerance is not just in increasing root dry weight as a result of root thickening.

show abstract

Section: Resultssupporting

confidence: 54%

Frugivorous bird characteristic of seed disperser in shrubland tropical forest West Java, Indonesia

Kuswantoro

2017

Biodiversitas

View full text Add to dashboard Cite

show abstract

“…35 Root apices are the primary sites of Al 3+ accumulation and therefore suffer more pH also significantly reduces processes occurring downstream of, or in parallel to, root-hair infection. This includes the expression of early nodulation genes, 71 initial cell division events and primordia establishment. However, the precise mechanisms resulting in these reductions remain unclear.…”

Section: Plant Growth In Low Ph Soilmentioning

confidence: 99%

Regulation of legume nodulation by acidic growth conditions

Ferguson

Lin²,

Gresshoff

2013

Plant Signaling & Behavior

Self Cite

109

View full text Add to dashboard Cite

Legumes represent some of the most important crop species worldwide. They are able to form novel root organs known as nodules, within which biological nitrogen fixation is facilitated through a symbiotic interaction with soil-dwelling bacteria called rhizobia. This provides legumes with a distinct advantage over other plant species, as nitrogen is a key factor for growth and development. Nodule formation is tightly regulated by the plant and can be inhibited by a number of external factors, such as soil pH. This is of significant agricultural and economic importance as much of global legume crops are grown on low pH soils. Despite this, the precise mechanism by which low pH conditions inhibits nodule development remains poorly characterized.

show abstract

“…Recently, split-root and grafting studies using soybean grown in low pH conditions revealed a novel systemic mechanism that acts via GmNARK in the shoot to inhibit nodulation of the root (Lin et al 2012;Ferguson et al 2013). This suggests that soil acidity may act via a CLE peptide to suppress nodulation.…”

Section: Other Inducing Factorsmentioning

confidence: 99%

The structure and activity of nodulation-suppressing CLE peptide hormones of legumes

Hastwell

Gresshoff

Ferguson

2015

Functional Plant Biol.

Self Cite

View full text Add to dashboard Cite

Abstract. Legumes form a highly-regulated symbiotic relationship with specific soil bacteria known as rhizobia. This interaction results in the de novo formation of root organs called nodules, in which the rhizobia fix atmospheric di-nitrogen (N 2 ) for the plant. Molecular mechanisms that regulate the nodulation process include the systemic 'autoregulation of nodulation' and the local nitrogen-regulation of nodulation pathways. Both pathways are mediated by novel peptide hormones called CLAVATA/ESR-related (CLE) peptides that act to suppress nodulation via negative feedback loops. The mature peptides are 12-13 amino acids in length and are post-translationally modified from the C-terminus of tripartitedomain prepropeptides. Structural redundancy between the prepropeptides exists; however, variations in external stimuli, timing of expression, tissue specificity and presence or absence of key functional domains enables them to act in a specific manner. To date, nodulation-regulating CLE peptides have been identified in Glycine max (L.) Merr., Medicago truncatula Gaertn., Lotus japonicus (Regel) K.Larsen and Phaseolus vulgaris L. One of the L. japonicus peptides, called LjCLE-RS2, has been structurally characterised and found to be an arabinosylated glycopeptide. All of the known nodulation CLE peptides act via an orthologous leucine rich repeat (LRR) receptor kinase. Perception of the peptide results in the production of a novel, unidentified inhibitor signal that acts to suppress further nodulation events. Here, we contrast and compare the various nodulation-suppressing CLE peptides of legumes.

show abstract

Systemic Regulation of Soybean Nodulation by Acidic Growth Conditions

Cited by 69 publications

References 63 publications

Frugivorous bird characteristic of seed disperser in shrubland tropical forest West Java, Indonesia

Frugivorous bird characteristic of seed disperser in shrubland tropical forest West Java, Indonesia

Regulation of legume nodulation by acidic growth conditions

The structure and activity of nodulation-suppressing CLE peptide hormones of legumes

Contact Info

Product

Resources

About