The diversity of rhizobia nodulating chickpea (Cicer arietinum) under water deficiency as a source of more efficient inoculants

Romdhane, Samir Ben; Trabelsi, Mustapha; Aouani, Mohamed Elarbi; Lajudie, Philippe de; Mhamdi, Ridha

doi:10.1016/j.soilbio.2009.09.020

Cited by 61 publications

(29 citation statements)

References 37 publications

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“…The Rhizobium isolates species that failed to nodulate in those acacias might be explained by the loss of a symbiotic plasmid (sym plasmid) or a lateral gene transfer or changes in the host specific nod gene (Haukka et al, 1996;Kucuk et al, 2006;Han et al, 2008). Environmental conditions, especially water deficiency, may play a crucial role in nodulation and may be responsible for some non-specific nodulation (Ben Ramdhane et al, 2009;Fitouri et al, 2012). Based on our observations, it is that the environmental conditions and Nod factors played an important role in the nodulation process.…”

Section: Discussionmentioning

confidence: 99%

The Symbiotic Efficiency of Legume Tree Rhizobia for Host Range Legumes in Central Saudi Arabia

Shetta¹,

Alshahrani²

2016

IJAB

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Pot experiments were conducted under greenhouse conditions to evaluate the symbiotic efficiency and host range of several Rhizobium isolates on woody tree legumes and cross-nodulation between local Acacia trees grown in Central Saudi Arabia. The results indicated that Acacia trees varied in their ability to form symbiotic relationships with the Rhizobium isolates. Depending on their nodulation responses to isolates, three groups of Acacia were recognized. The first group presented nodulation with more than one of the isolates and formed real nodules with most of the Rhizobium species. The second was composed of trees with ineffective nodules with most of the isolates. The third group failed to form nodules with the tested Rhizobium. Acacia saligna and A. tortillis were the most tree species, having effective nodules with all isolates. Rhizobium isolates KSA6, KSA8 and KSA9 were able to cross-nodulate A. tortillis, A. saligna and A. gerrardii as well as their own hosts. Seedlings of A. tortillis and A. saligna inoculated with isolates of KSA6 and KSA8 showed levels of growth and biomass more than those of inoculated ones with isolates of KSA9. The Rhizobium isolates KSA6 and KSA8 can be utilized to enhance productivity in afforestation programs in the central region of Saudi Arabia.

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Section: Discussionmentioning

confidence: 99%

The Symbiotic Efficiency of Legume Tree Rhizobia for Host Range Legumes in Central Saudi Arabia

Shetta¹,

Alshahrani²

2016

IJAB

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“…1). A marked reduction in root length of chickpea (Cicer arietinum L.) cultivars was noticed under drought as shown in potato [19] and chickpea (Cicer arietinum L.) [20,21]. In other studies, root fresh and dry weights were significantly reduced in chickpea [22][23][24], peanut [25], mung bean [26], white clover [27] and Erythrina seedling [28].…”

Section: Root Morphologymentioning

confidence: 97%

Morpho-Anatomical Changes in Roots of Chickpea (Cicer arietinum L.) under Drought Stress Condition

Saeed¹,

Maqbool²,

Haseeb³

et al. 2016

JAST-B

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Chickpea (Cicer arietinum L.) is a crop cultivated in semi-arid and rainfed areas of Pakistan and it experiences terminal drought stress. In this paper, the morpho-anatomical study regarding roots of chickpea was carried out to investigate the drought adaptation strategies. Twelve cultivars of chickpea were grown in pots under drought stress of 70% and 35% field capacity in addition to control (100%). Root segments of mature chickpea plants were sectioned in 2 cm from root-shoot junction and used for making transverse sections. The development of sleeve and stele tissues and their proportion were markedly influenced by moisture availability to the root system. Roots length, fresh and dry weight, and number of secondary roots were decreased under field capacity of 70% and 35% as compared to control in 12 cultivars of chickpea. Root epidermis and cortex of CH47/04 consisted of cells with thickened walls and with 2-3 cell layers of sclerenchymatous cells below the epidermis. Increased number of medullary rays and high vascular region was observed in cultivars CH120/04, CH47/04, CH587/05 and CH87/02. Anatomical studies showed that CH47/04 was highly tolerant among 12 cultivars of chickpea, while CH587/05 and CH87/02 behaved moderately under both levels of drought stress (70% and 35% field capacity).

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“…[55], it has been reported that, in general, rhizobia strains appear to be more tolerant to water deiciency than host plants, but these strains exhibit variation in their growth and survival under this stress. The reduction of the nodular biomass under water deicit could be explained by the reduction in the number and diameter of the root hairs or the inhibition of the emergence and the elongation of these organs [56] and, on the other hand, Limited rhizobia growth, which reduces the initiation and development of nodules [57].…”

Section: Efect On Alfalfa Plant In Symbiosismentioning

confidence: 99%

Alfalfa and Its Symbiosis Responses to Osmotic Stress

Mouradi¹,

Farissi²,

Bouizgaren³

et al. 2018

New Perspectives in Forage Crops

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Alfalfa (Medicago sativa L.) is one of the most cultivated forage legumes in Morocco thanks to its great adaptation to the climatic conditions of this country, its high protein content and its ability to ix atmospheric nitrogen in symbiosis with rhizobia. Environmental stresses such as drought and salinity constitute a major factor limiting the symbiotic nitrogen ixation and legume productivity. In the last decades, this process has interested scholars in understanding the implication of these strains in legume stress tolerance in order to make these symbioses more eicient under diicult conditions. Seed osmopriming is a great technique in the amelioration of seed germination and seedlings growth in responses to several abiotic stress conditions. In this chapter, the efects of water deicit on the Moroccan alfalfa populations and their symbiotic association with rhizobia were discussed. Besides, osmopriming could make these symbioses more eicient especially under stress conditions.

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The diversity of rhizobia nodulating chickpea (Cicer arietinum) under water deficiency as a source of more efficient inoculants

Cited by 61 publications

References 37 publications

The Symbiotic Efficiency of Legume Tree Rhizobia for Host Range Legumes in Central Saudi Arabia

The Symbiotic Efficiency of Legume Tree Rhizobia for Host Range Legumes in Central Saudi Arabia

Morpho-Anatomical Changes in Roots of Chickpea (Cicer arietinum L.) under Drought Stress Condition

Alfalfa and Its Symbiosis Responses to Osmotic Stress

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