Mycorrhizal Inoculation Modulates Root Morphology and Root Phytohormone Responses in Trifoliate Orange under Drought Stress

Jin, Lei; Guo, Cha; Chen, Zili; He, Jun; Zou, Ying-Ning

doi:10.9755/ejfa.2015-11-1044

Cited by 45 publications

(30 citation statements)

References 34 publications

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“…Total GAs are a kind of important hormones to promote the formation of flowers (Zhang et al, 2014). However, in the present study, mycorrhizal inoculation did not significantly affect GAs level in flowers of hyacinth plants, which is in agreement with previous study in trifoliate orange under mycorrhization with F. mosseae (Liu et al, 2016). It seems that GAs did not participate in flower regulation by mycorrhization.…”

Section: Discussionsupporting

confidence: 90%

“…Auxin plays an important role to plant morphogenesis (Alabadí et al, 2009). In our study, AMF colonization strongly stimulated the significant increment of IAA concentration in flowers than non-AMF colonization, regardless of AMF species, which is similar to Torelli et al (2000) in onion, Meixner et al (2005) in soybean, and Liu et al (2016) in trifoliate orange subjected to well-watered and drought stress. This implies that AMF may regulate flower development and blooming by means of accelerating IAA synthesis.…”

Section: Discussionsupporting

confidence: 67%

“…Arbuscular mycorrhizal fungi (AMF), a kind of soil inhabited microbes, can establish symbiotic association (namely, arbuscular mycorrhiza) with most of terrestrial plants (Bainard et al, 2011). The presence of arbuscular mycorrhiza shows lots of benefits in the host plants, including enhancement in quality and growth of crops, improvement in physical and chemical properties of soils, increment in survive rate of micropropagated plants, alleviation of magnesium deficiency and drought stress, and enhancement in disease and insect resistance of plants (Garmendia et al, 2004(Garmendia et al, , 2005Garmendia and Mangas, 2012;Zhang et al, 2015;Liu et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Arbuscular Mycorrhizal Fungi Regulate Flowering of Hyacinths orientalis L. Anna Marie

Xie

2018

Emir J Food Agric

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Arbuscular mycorrhizal fungi (AMF) represent positive effects on growth performance, nutrient absorption and stressed tolerance of host plants, whereas it is not clear whether AMF can affect flowering traits of ornamental plants. In this work, Diversispora spurca, D. versiformis, and Funneliformis mosseae were applied to rhizosphere of potted hyacinth (Hyacinths orientalis L. Anna Marie) plants. After four months of mycorrhizal inoculation, root could be colonized by exogenous AMF species, varied from 38% to 49%, whilst F. mosseae had the best mycorrhizal status. Out of these AMF species used, only F. mosseae-inoculated plants recorded greater raceme length and biomass production of single flowerlet, raceme, and flower stem. F. mosseae also induced the flowering earlier in 2 days and prolonged flowering time for 3 days. D. versiformis postponed 2 days for flowering. Mycorrhizal plants recorded considerably higher acetic acid (IAA) and zeatin riboside (ZR) levels in flowers, irrespective of AMF species. F. mosseae-inoculated plants had significantly higher methyl jasmonate (MeJA) concentrations in flowers than other AMF- or non-AMF-treated plants. These results thereby conclude that F. mosseae can be used to regulate flowering of H. orientalis L. Anna Marie, including flowering earlier and prolonging flowering time, which is closely associated with IAA, ZR and MeJA levels in flowers.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

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Arbuscular Mycorrhizal Fungi Regulate Flowering of Hyacinths orientalis L. Anna Marie

Xie

2018

Emir J Food Agric

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“…Elevation of ZR content in mycorrhized plants was clearly demonstrated under stress conditions (Liu et al 2016). It was suggested that AM fungi enhanced sink strength and promoted photosynthesis due to ZR.…”

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confidence: 95%

The effect of inoculation with arbuscular mycorrhizal fungus Rhizophagus irregularis on cytokinin content in a highly mycotrophic Medicago lupulina line under low phosphorus level in the soil

Andrey¹,

Веселова²,

Lidia³

et al. 2017

Plant Soil Environ.

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Arbuscular mycorrhizae (AM) is a mutualistic nonspecific symbiosis formed by most land plant families (92%) with fungi represented by the Glomeromycota phylum. This type of symbiosis is The study is focused on the elucidation of the role of cytokinins (CKs, zeatin and zeatin riboside) in the development of effective arbuscular mycorrhiza (AM) symbiosis with Medicago lupulina. An important mechanism involved in the regulation of host plant growth is supposed to be linked to the modulation of plant hormone balance. The data obtained revealed the formation of an effective AM-symbiosis (M. lupulina + Rhizophagus irregularis) under phosphorus-deficiency. At the shooting stage (35 th day after sowing), it is characterized by a decrease in the root:shoot ratio, the lowering in arbuscules and vesicle abundances, but an increase in the intensity of mycelium development. Mycorrhized plants differed from the control ones by higher CK levels in both roots and leaves. Zeatin and zeatin riboside concentration exhibited uneven alterations over time. A role of mycelium in the modulation of CK balance has been discussed.

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“…The underlying mechanisms of mycorrhizal plants in enhancing drought tolerance have not yet been clearly elucidated. Possible mechanisms include (i) water and nutrient uptake directly by external hyphae (Zou et al, 2015), (ii) optimizing the root system architecture (Liu et al, 2016), (iii) greater osmotic adjustment capacity (Wu et al, 2007), (iv) enhancement of antioxidant defense systems , and (v) soil structure improvement by glomalin (Wu et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Drought Tolerance in Trifoliate Orange by Mycorrhiza: Changes in Root Sucrose and Proline Metabolisms

Zhang

et al. 2018

Not Bot Horti Agrobo

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Sucrose and proline metabolisms are often associated with drought tolerance of plants. This study was conducted to investigate the effects of two arbuscular mycorrhizal fungi (AMF) species (Funneliformis mosseae and Paraglomus occultum) on root biomass, lateral root number, root sucrose and proline metabolisms in trifoliate orange (Poncirus trifoliata) seedlings under well-watered (WW) or drought stress (DS). All the AMF treatments significantly increased root dry weight, taproot length, and the number of lateral roots in 1 st , 2 nd , and 3 rd class under WW and DS. Mycorrhizal seedlings conferred considerably higher fructose and glucose concentrations but lower sucrose accumulation, regardless of soil water status. Under DS, F. mosseae treatment significantly increased root sucrose synthase (SS, degradative direction) and sucrose phosphate synthase (SPS) activity but deceased root acid invertase (AI) and neutral invertase (NI) activity, and P. occultum inoculation markedly increased root AI, NI, SS, and SPS activities. AMF treatments led to a lower proline accumulation in roots, in company with lower activities of Δ 1 -pyrroline-5-carboxylate synthetase (P5CS), δ-ornithine aminotransferase (OAT), Δ 1 -pyrroline-5-carboxylate reductase (P5CR), and proline dehydrogenase (ProDH) in roots. It appears that the AM symbiosis induced greater root development and sucrose and proline metabolisms to adapt DS.

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Mycorrhizal Inoculation Modulates Root Morphology and Root Phytohormone Responses in Trifoliate Orange under Drought Stress

Cited by 45 publications

References 34 publications

Arbuscular Mycorrhizal Fungi Regulate Flowering of Hyacinths orientalis L. Anna Marie

Arbuscular Mycorrhizal Fungi Regulate Flowering of Hyacinths orientalis L. Anna Marie

The effect of inoculation with arbuscular mycorrhizal fungus Rhizophagus irregularis on cytokinin content in a highly mycotrophic Medicago lupulina line under low phosphorus level in the soil

Enhancement of Drought Tolerance in Trifoliate Orange by Mycorrhiza: Changes in Root Sucrose and Proline Metabolisms

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