The role of boron in plant response to mycorrhizal infection

Lambert, D. H.; Cole, H.; Baker, Dana Lee

doi:10.1007/bf02211700

Cited by 24 publications

(12 citation statements)

References 14 publications

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“…B fertilisation has also been reported to increase vesiculararbuscular mycorrhizal colonisation in rough lemon (Citrus jambhiri Lush.) seedlings (Dixon et al 1989) as well as in red clover (Trifolium pratense L.) and alfalfa (Medicago sativa L.) (Lambert et al 1980). However, there is only one study on the effects of B on roots of conifer seedlings.…”

Section: Introductionmentioning

confidence: 99%

Growth dynamics and mycorrhizas of Norway spruce ( Picea abies) seedlings in relation to boron supply

Möttönen

Lehto

Aphalo

2001

Trees

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The effects of three boron levels on the growth dynamics and ectomycorrhizas of seedlings of Norway spruce [Picea abies (L.) Karst.] were studied in a growth room experiment. The seedlings were grown in forest humus mixed with quartz sand for 16 weeks. The B treatment was applied in the nutrient solution. Stem height, dry weight, number of root tips, mycorrhizas as well as B and N concentrations in the seedlings were monitored in sequential harvests. By the last harvest, in week 16, needle B concentrations were 6.6 mg kg -1 at the lowest B level and 17.5 mg kg -1 and 26.5 mg kg -1 at the two higher levels. Boron slightly increased the stem height and the total dry weight, but did not affect N content of the seedlings. Low internal B reduced the number of root tips and mycorrhizas as well as mycorrhizal percentage and root dry weight, which indicates the importance of B for root growth in Norway spruce seedlings. The seedlings grown with adequate internal B had more root tips than those receiving the two lower B treatments as early as week 9, when needle B concentrations at the lowest B supply were 16.0-17.3 mg kg -1 , which has previously been considered a sufficient B level. Therefore, the critical needle B concentrations should perhaps be re-examined.

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Section: Introductionmentioning

confidence: 99%

Growth dynamics and mycorrhizas of Norway spruce ( Picea abies) seedlings in relation to boron supply

Möttönen

Lehto

Aphalo

2001

Trees

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“…Interactions between P, Cu, and Zn, have been observed using soy beans (Glycine max (L) Merr. ), and maize [28,38]. In all cases, AM colonization and concentrations of Cu and Zn decreased with P fertilization in AM plants.…”

Section: The Role Of Microorganisms In Zinc Uptakementioning

confidence: 82%

“…It is widely reported that AM-fungi increase plant Cu and Zn uptake [4,28,38]. More Cu and Zn were measured in mycorrhizal soybean plants than in P-supplemented nonmycorrhizal soybean plants of the same size, in soil with low levels of Cu and Zn.…”

Section: The Role Of Microorganisms In Zinc Uptakementioning

confidence: 95%

“…More Cu and Zn were measured in mycorrhizal soybean plants than in P-supplemented nonmycorrhizal soybean plants of the same size, in soil with low levels of Cu and Zn. Glomus mosseae contributed from 16-25% of total Zn uptake by maize growth in calcareous soil and from 52-65% of total Cu uptake by clover plants grown in the same soil [38]. This indicates that high levels of both P and Zn inhibit mycorrhizal development, resulting in the reduced uptake ability of extraradical hyphae.…”

Section: The Role Of Microorganisms In Zinc Uptakementioning

confidence: 98%

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Soil microbe mediated zinc uptake in soy bean: A review

Jefwa¹,

Ohiokpehai²,

Kavoo³

et al. 2011

African Journal of Food, Agriculture, Nutrition and Development

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The availability of the nutrients to plants depends on the inherent and derived mechanisms to access these nutrients. More attention has been given to macronutrients which are more accessible, easily replenished and utilized by plants for growth. Macronutrients are crucial and improve yield but compromise quality of the crop, leading to a phenomenon termed as 'the empty harvest'. The soil nutrient cycle processes are mediated by both biotic and abiotic factors with nutrients available in gaseous and in soil solution. Roots play a major role in the uptake of nutrients from the soils. The rhizosphere and rhizoplane of roots is rich with soil biota, amongst them microorganisms, which play a major role in nutrient availability, accessibility and translocation. Nutrient uptake can be enhanced by microorganisms through direct and indirect processes. There is sufficient evidence for nitrogen, phosphorus and micronutrient uptake and availability mediated by microorganisms. The uptake of micronutrients such as zinc depends on that of phosphorus. A large proportion of the world population has shortcomings from a nutrition perspective of being low in zinc and other essential nutrients. There is widespread zinc deficiency in diets causing zinc deficiency diseases. This is combated through pharmaceutical supplements, industrial fortification and most recently biofortification through agriculture. Biofortification has taken highest priority in guaranteeing quality of crops. However, soils exploitation for micronutrients can be enhanced by biological interventions to guarantee adequate uptake by plants and improve crop quality. Microbiological interventions that increase root growth, the availability and transfer of Zn from soil to plants are, therefore, crucial. This article reviews promising microbiological interventions for zinc uptake and gives an overview of microbiological interventions for nitrogen and for phosphorus that are directly linked with zinc uptake. Soya bean is taken as a model plant in this review to elucidate the mechanism of Zn mobilization.

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“…IAA content has also been shown to increase in two different barley cultivars, subjected to excess boron. [22] Lambert et al [23] have suggested that boron fertilization leads to decreased IAA oxidase activity in plant roots and, therefore, to increased IAA content. [22] The rise of the IAA content leads to movement of carbohydrates into the roots and, by this, to enhancement of mycorrhizal fungal infections.…”

Section: Resultsmentioning

confidence: 99%

Does excess boron affect hormone levels of potato cultivars?

Ayvaz

Güven

Fagerstedt

2015

Biotechnology & Biotechnological Equipment

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Potato crop production in Turkey ranks on the thirteenth place in the world. Toxicity is a problematic issue for some parts of the Turkish soils. Hence, it is very important to clarify the physiological responses of plants to toxic mineral stress. In this study, two different potato cultivars À Solanum tuberosum cv. Resy and Solanum tuberosum cv. Agria À were used as a study material. Excess boron was applied in two different concentrations (5 mmol/L and 12.5 mmol/L) 32 days after planting the tubers. Plants were harvested at the end of 15 days of excess boron application. Chlorophyll fluorescence (Fv/ Fm) was measured. Shoot height and shootÀroot fresh weight contents were determined. Analyses were carried out for the contents of the endogenous hormones indole-3-acetic acid (IAA) and abscisic acid (ABA) by using gas chromatographymass spectrophotometry (GS-MS). According to the obtained data, plants' shoot height did not change, whereas the shoot's fresh weight decreased significantly with increasing of the boron concentrations in cv Resy, by applying 12.5 mmol/L boron. With 12.5 mmol/L boron, the photosynthesis was negatively affected in both cultivars. Boron application led to increased endogenous IAA and ABA content in both cultivars. As a result, cv. Resy showed more resistance to excess boron. Findings on the hormone metabolism and chlorophyll fluorescence in different cultivars will shed a light on understanding the physiological response to excess mineral stress.

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The role of boron in plant response to mycorrhizal infection

Cited by 24 publications

References 14 publications

Growth dynamics and mycorrhizas of Norway spruce ( Picea abies) seedlings in relation to boron supply

Growth dynamics and mycorrhizas of Norway spruce ( Picea abies) seedlings in relation to boron supply

Soil microbe mediated zinc uptake in soy bean: A review

Does excess boron affect hormone levels of potato cultivars?

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