Developmental mapping of nodulation events in pea (Pisum sativum L.) using supernodulating plant genotypes and bacterial variability reveals both plant and Rhizobium control of nodulation regulation

Sagan, Muriel; Gresshoff, Peter M.

doi:10.1016/0168-9452(96)04411-1

Cited by 29 publications

(19 citation statements)

References 38 publications

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“…No evidence for such stimulation was seen with RCR2011. These data are consistent with previous work suggesting an influence of the bacterial partner on the nodule meristematic activity (Sagan & Gresshoff, 1996; Tirichine et al. , 2000; Laguerre et al.…”

Section: Discussionsupporting

confidence: 93%

Local and systemic N signaling are involved in Medicago truncatula preference for the most efficient Sinorhizobium symbiotic partners

et al. 2012

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Summary• Responses of the Medicago truncatula-Sinorhizobium interaction to variation in N 2 -fixation of the bacterial partner were investigated.• Split-root systems were used to discriminate between local responses, at the site of interaction with bacteria, and systemic responses related to the whole plant N status.• The lack of N acquisition by a half-root system nodulated with a nonfixing rhizobium triggers a compensatory response enabling the other half-root system nodulated with N 2 -fixing partners to compensate the local N limitation. This response is mediated by a stimulation of nodule development (number and size) and involves a systemic signaling mechanism related to the plant N demand. In roots co-infected with poorly and highly efficient strains, partner choice for nodule formation was not modulated by the plant N status. However, the plant N demand induced preferential expansion of nodules formed with the most efficient partners when the symbiotic organs were functional. The response of nodule expansion was associated with the stimulation of symbiotic plant cell multiplication and of bacteroid differentiation.• A general model where local and systemic N signaling mechanisms modulate interactions between Medicago truncatula and its Sinorhizobium partners is proposed.

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Section: Discussionsupporting

confidence: 93%

Local and systemic N signaling are involved in Medicago truncatula preference for the most efficient Sinorhizobium symbiotic partners

et al. 2012

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“…This hypothesis is supported by our further study. Shoot-controlled supernodulating mutants sym28 and sym29, producing 5-10 times more nodules than wild-type plants (nodule number sym29 4 sym28 4 wild type; Duc and Messager, 1989;Sagan and Duc, 1996;Sagan and Gresshoff, 1996), induced a stronger inhibitory response than wild type (Figure 4). Since AON signalling is initiated at an earlier stage than cell division in pea, we propose that this systemic signal transduction pathway may be activated by a substance required for inducing, or being part of, the eukaryotic cell cycle, and that this precursor is generated in cortical/pericycle cells prior to visible cell divisions.…”

Section: Article In Pressmentioning

confidence: 95%

“…Sym28 (possibly homologous to LjKlavier) and Sym29 (homologous to GmNARK) function through the shoot (Duc and Messager, 1989;Sagan and Duc, 1996;Sagan and Gresshoff, 1996;Oka-Kira et al, 2005) while Nod3 acts on the root (Jacobsen and Feenstra, 1984;Postma et al, 1988;Borisov et al, 2007).…”

Section: Strength Of Aon In Relation To Different Stages Of Aon Signamentioning

confidence: 99%

“…The mutant lines, DK3, DK8, DK14, DK24 and DK43, were described as RidNod3, RisNod8, RisNod14, RisNod24 and RisNod43, correspondingly, in the initial description (Engvild, 1987); complementation of these lines was established by INRA-Dijon, France (personal communication with Prof. G. Duc). Supernodulating mutants P64, P88 and P79 were selected from P. sativum Frisson (Duc and Messager, 1989;Sagan and Gresshoff, 1996) after treatment with EMS. All seed lines and their phenotypes are listed in Table 1.…”

Section: Plant Materialsmentioning

confidence: 99%

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Autoregulation of nodulation (AON) in Pisum sativum (pea) involves signalling events associated with both nodule primordia development and nitrogen fixation

Kinkema

Gresshoff

2009

Journal of Plant Physiology

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“…Singh et al ( 1997 ) reported an induced mutant which had a greater number of dry weights of nodules with higher yield, when compared with the parent in black gram. Sagan and Gresshoff ( 1996 ) reported a super-nodulating mutant of soybean which was characterized by a faster appearance of nodules and a more extensive nodule distribution over the root system.…”

Section: Mutations Affecting Nodulation In Pulsesmentioning

confidence: 98%

Induced Mutagenesis for the Improvement of Pulse Crops with Special Reference to Mung Bean: A Review Update

Wani¹,

Kozgar

Khan

et al. 2013

Improvement of Crops in the Era of Climatic Changes

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Developmental mapping of nodulation events in pea (Pisum sativum L.) using supernodulating plant genotypes and bacterial variability reveals both plant and Rhizobium control of nodulation regulation

Cited by 29 publications

References 38 publications

Local and systemic N signaling are involved in Medicago truncatula preference for the most efficient Sinorhizobium symbiotic partners

Local and systemic N signaling are involved in Medicago truncatula preference for the most efficient Sinorhizobium symbiotic partners

Autoregulation of nodulation (AON) in Pisum sativum (pea) involves signalling events associated with both nodule primordia development and nitrogen fixation

Induced Mutagenesis for the Improvement of Pulse Crops with Special Reference to Mung Bean: A Review Update

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