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Nable, Ross O.; Bañuelos, Gary S.; Paull, J. G.

doi:10.1023/a:1004272227886

Cited by 714 publications

(206 citation statements)

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“…B uptake differs among plant species and cultivars (Hu and Brown 1997). High concentrations of B may occur naturally in the soil or ground water, or be added to the soil through fertilizers, mining, and municipal and other wastewater effluents used for irrigation water (Nable et al 1997). Interactions between salinity and B have been observed for some plants.…”

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Hot pepper response to interactive effects of salinity and boron

Supanjani¹,

Lee²

2006

Plant Soil Environ.

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An excess of salinity and boron (B) can limit production of hot pepper (Capsicum annuum L.), but little is known about the physiological responses, including antioxidant activities, in response to these excesses. We investigated the physiological responses and defense mechanisms of hot pepper grown under salinity (NaCl) stress at 3 and 6 dS/mand B stress at 15 and 30 mg/kg. Dry weight and the total chlorophyll content decreased with increasing salinity and B levels. The toxic effect of B was greater under saline conditions. Higher levels of salinity and B resulted in increased B concentrations in leaves. The stomatal resistance values increased as the combined levels of salinity and B increased. Furthermore, increasing salinity, B or both increased activities of H 2 O 2 , SOD, POX, APX and GR, which increased oxidative stress, compared to the control plants. Increases in combined salinity and B levels disrupted plant nutrient balance and water use, and induced production of secondary toxic substances leading to an increased plant tissue concentration of H 2 O 2 , and suppression of growth in hot pepper.

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confidence: 99%

Hot pepper response to interactive effects of salinity and boron

Supanjani¹,

Lee²

2006

Plant Soil Environ.

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“…2), attesting that different rootstocks can influence plants' tolerance to B toxicity (Edelstein et al 2005) possibly through different B distribution in leaves. For some species of plants, B was mostly concentrated at the tips and margins, even though the majority of leaf blades had similar concentrations (Nable et al 1997).…”

Section: Discussion Boron Deficiency and Toxicity In Plant Growthmentioning

confidence: 99%

“…In addition, the inhibitory effect on the growth was more pronounced in the stem of scion and the new leaf (Table 1), implying that these two parts were more sensitive to high B than the other tissues. Boron toxicity exerts different effects on very diverse processes in vascular plants, and these effects includes altered metabolism, reduced root cell division, lowered leaf chlorophyll content and photosynthetic rate, and decreased lignin and suberin level (Nable et al 1997;Reid 2007). Accordingly, a reduced growth of shoots and roots is typical in plants exposed to high B level.…”

Section: Discussion Boron Deficiency and Toxicity In Plant Growthmentioning

confidence: 99%

Distribution of boron and its forms in young “Newhall” navel orange (Citrus sinensisOsb.) plants grafted on two rootstocks in response to deficient and excessive boron

Liu

Jiang

Wang

2011

Soil Science and Plant Nutrition

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Boron (B) deficiency is widespread and serious in navel orange orchards in southern Jiangxi in China and has been considered an important soil constraint to citrus yield and quality. It has been observed that there was great variation in responses to different B supply levels between ''Newhall'' navel orange grafted on citrange and trifoliate orange. The aim of this work was to compare the different responses of the two scion-rootstock combinations under different B stresses (low and high) in young citrus trees. ''Newhall'' navel orange grafted on citrange or trifoliate orange were incubated in nutrient solution containing different levels of B (0, 0.5 and 5.0 mg L À1 ), of which 0 and 5.0 mg L À1 were considered as deficient and excessive B and 0.5 mg L À1 was considered as an appropriate level of B. The experiment was carried out in a greenhouse for 117 days. The results showed that, under low B or high B conditions, better growth performance was observed in ''Newhall'' plants grafted on citrange than in those grafted on trifoliate orange, suggesting that citrangegrafted plants were more tolerant to deficient and excessive B than the plants grafted on trifoliate orange. Boron seemed to be preferentially translocated to the new leaves (leaves from current year), and resulted in normal growth of young leaves under limited B supply. Boron distribution in different plant parts indicated that there was a restriction in translocation of B from roots to scion tissues (stems and leaves of scion) under limited B availability. The relatively high B concentration observed in plants grafted on trifoliate orange suggested higher demand for B than those grafted on citrange. There existed a balance within the B forms to maintain normal growth. Thus, R value (R ¼ semi-bound B/free B) was much higher in citrange-grafted plants than in trifoliate orange-grafted plants under the same B supply level. This explained why citrange-grafted plants had less B but produced relatively more dry mass at cellular level. These results suggested that the utilization efficiency of B of citrange-grafted plants was probably greater than trifoliate orange-grafted plants.

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“…Other studies have shown that in varieties sensitive to salinity, cell damage in the root cortex is due to root cell collapse (Hakim et al 2014). Given the importance of B as an essential element for larger plants, its deficiency and toxicity are a worldwide problem in food production because of reduced crop quality and yields, especially in arid areas (Nable et al 1997). Salinity conditions are aggravated by the presence of B in soils and water in arid and semiarid environments.…”

Section: Introductionmentioning

confidence: 99%

Combined effects of excess boron and salinity on root histology of Zea mays L. amylacea from the Lluta Valley (Arica, Chile)

Bastías

González‐Moro

González‐Murua

2015

Idesia

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Cell structure and alterations in tissue organization were analyzed for roots of Zea mays L. amylacea as a consequence of high salinity and boron (B) levels. Saline treatment concentrations were 100 mM NaCl (Low salinity, L) and 430 mM NaCl (High salinity, H). An excess of B was supplied as boric acid to obtain 20 (334 µM) and 40 (668 µM) mg B kg -1 in the nutrient solution for 20 days. Our results complement other studies on the amylacea ecotype and confirm the high degree of tolerance to salinity and excess B shown by this variety. The application of B under no salt and low salinity conditions did not result in structure changes in root cortex cells nor the vascular cylinder. Under high salinity conditions amylacea root cells showed slight alterations, such as an increase in the number of rows of cells. These high salinity conditions did not result in thickness of the stele.Key words: Amylacea, boron, histological, root, salinity. RESUMEN La estructura celular y las alteraciones en la organización del tejido de raíz se analizaron en Zea mays L. amylacea como consecuencia de altos niveles de boro (B) y de salinidad. Concentraciones de los tratamientos de salinidad fueron 100 mM NaCl (baja salinidad, L) y 430 mM NaCl (alta salinidad, H). El exceso de B se suministró como ácido bórico para obtener 20 (334 µM) y 40 (668 µM) B mg kg -

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Cited by 714 publications

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Hot pepper response to interactive effects of salinity and boron

Hot pepper response to interactive effects of salinity and boron

Distribution of boron and its forms in young “Newhall” navel orange (Citrus sinensisOsb.) plants grafted on two rootstocks in response to deficient and excessive boron

Combined effects of excess boron and salinity on root histology of Zea mays L. amylacea from the Lluta Valley (Arica, Chile)

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