Effects of Boron Ions on Root Growth and Cell Division of Broadbean (Vicia Faba L.)

Liu, Donghua; Jiang, Wusheng; Zhang, Lingxin; Li, Lufang

doi:10.1560/c74e-vykd-fkyk-tqwk

Cited by 45 publications

(21 citation statements)

References 21 publications

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“…However, the increase of B supply up to 10B in the presence of salt or up to 6B in the absence of salt had inhibitory effects of root elongation. Some typical effects of B toxicity, as its capacity of complexing intracellular pyridine nucleotide coenzymes (Loomis and Durst, 1992), or its adverse effects on cell division (Liu et al, 2000) could explain those results.…”

Section: Discussionmentioning

confidence: 99%

Boron and calcium increasePisum sativum seed germination and seedling development under salt stress

2004

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A beneficial effect of B and Ca application on symbiotic interaction between legume and rhizobia under saline conditions has recently been shown, suggesting conventional agricultural practices to increase crop salt tolerance. However, nothing is known about application of both nutrients on early events of legume development under salt stress, prior to the establishment of a symbiotic interaction. Therefore, the effects of different levels of B (from 9.3 to 93 µM B) and Ca (from 0.68 to 5.44 mM Ca) on seed germination, root elongation, plant development, and mineral composition of pea (Pisum sativum L. cv. Argona) grown under 0 to 150 mM NaCl, were analysed. Development of plants previously germinated in the presence of salt was more impaired than that of plants put under salt stress once seeds were germinated. A NaCl concentration of 75 mM and 150 mM inhibited pea seed germination and seedling growth. The addition of either extra B or extra Ca to the germination solution prevented the reduction caused by 75 mM NaCl but not that of 150 mM NaCl. However, root elongation and plant development under salt stress (75 mM NaCl) was enhanced only by addition of both B and Ca. When plants were cultivated in the absence of external N, N content in roots and shoots originating from seeds was diminished by salt and enhanced by B and Ca, suggesting a role of these nutrients in remobilisation of seed nutrient stores. Salinity also led to an extremely high concentration of Na + ions, and to a decrease of B and Ca concentrations. This can be overcome by addition of both nutrients, increasing salt tolerance of developing pea plants. The necessity of nutritional studies to increase crop production in saline soils is discussed and proposed.

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Section: Discussionmentioning

confidence: 99%

Boron and calcium increasePisum sativum seed germination and seedling development under salt stress

2004

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“…In plants, the biochemical and physiological effects of exposure to excess B have been well studied because B toxicity is an important agricultural problem (reviewed in Nable et al, 1997). Excess B has been shown to affect several developmental/biochemical processes in plants, altering metabolism (Lukaszewski et al, 1992), reducing root cell division (Liu et al, 2000), reducing shoot cell wall expansion (reviewed in Loomis and Durst, 1992), and generating reactive oxygen species (ROS) and subsequent oxidative damage (Cervilla et al, 2007). Furthermore, several genes involved in plant tolerance to excess B have been identified, including Arabidopsis thaliana BOR4 and TIP5;1 (Miwa et al, 2007;Pang et al, 2010) and barley (Hordeum vulgare) Bot1 (Sutton et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Condensin II Alleviates DNA Damage and Is Essential for Tolerance of Boron Overload Stress in Arabidopsis

et al. 2011

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Although excess boron (B) is known to negatively affect plant growth, its molecular mechanism of toxicity is unknown. We previously isolated two Arabidopsis thaliana mutants, hypersensitive to excess B (heb1-1 and heb2-1). In this study, we found that HEB1 and HEB2 encode the CAP-G2 and CAP-H2 subunits, respectively, of the condensin II protein complex, which functions in the maintenance of chromosome structure. Growth of Arabidopsis seedlings in medium containing excess B induced expression of condensin II subunit genes. Simultaneous treatment with zeocin, which induces DNA double-strand breaks (DSBs), and aphidicolin, which blocks DNA replication, mimicked the effect of excess B on root growth in the heb mutants. Both excess B and the heb mutations upregulated DSBs and DSB-inducible gene transcription, suggesting that DSBs are a cause of B toxicity and that condensin II reduces the incidence of DSBs. The Arabidopsis T-DNA insertion mutant atr-2, which is sensitive to replication-blocking reagents, was also sensitive to excess B. Taken together, these data suggest that the B toxicity mechanism in plants involves DSBs and possibly replication blocks and that plant condensin II plays a role in DNA damage repair or in protecting the genome from certain genotoxic stressors, particularly excess B.

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“…For example, in Zn-deficient bean (Phaseolus vulgaris), the level of indole acetic acid on the shoot tips and young leaves decreased to about 50% (Cakmak et al, 1989). In the same way, boron stimulated root growth in Vicia Fava L. (Liu et al, 2000) and in barley (Choi et al, 2007).…”

Section: -----------------------------------------G Kg -1 -----------mentioning

confidence: 99%

Root-promoting substances enhance Sugarcanes drought tolerance

Endres¹,

Filho²,

Clemente³

et al. 2016

Afr. J. Agric. Res.

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Sugarcane (Saccharum spp) is an expanding culture for the production of bioethanol around the world which requires certain practices to improve its productive performance at the different ecosystems. This work's aim is to evaluate the initial Sugarcane growth and drought tolerance through the application of biostimulants. For this purpose an experiment was conducted in a greenhouse using completely randomized design. Prior to planting, the cuttings were treated with: T 1 -Water; T 2 -Indolebutyric Acid (IBA); T 3 -Boron + Zinc; T 4 -Tryptophan; T 5 -Kymon Plus ® + Potamol ® ; and T 6 -Stimulate ® . Morphological analysis was performed at 40 and 124 days after planting (DAP) to assess the plant initial growth. The biostimulants effect on drought stress mitigation was evaluated at 120 DAP, after 3 days of suppression irrigation. The IBA and Stimulate ® application delivered higher growth rates and biomass accumulation. When compared to Control treatment, the application of Ubyfol ® and Stimulate ® provided higher photosynthesis in the absence of drought stress and had higher PSII effective quantum yield even when plants were under drought stress. The application of Stimulate ® enabled plants to maintain higher photosynthetic, transpiration and stomatal conductance rates under moderate drought stress.

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Effects of Boron Ions on Root Growth and Cell Division of Broadbean (Vicia Faba L.)

Cited by 45 publications

References 21 publications

Boron and calcium increasePisum sativum seed germination and seedling development under salt stress

Boron and calcium increasePisum sativum seed germination and seedling development under salt stress

Condensin II Alleviates DNA Damage and Is Essential for Tolerance of Boron Overload Stress in Arabidopsis

Root-promoting substances enhance Sugarcanes drought tolerance

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