Abstract:
KEY MESSAGE:Sensitivity to Erysiphe in Noccaea praecox with low metal supply is related to the failure in enhancing SA. Cadmium protects against fungal-infection by direct toxicity and/or enhanced fungal-induced JA signaling. Metal-based defense against biotic stress is an attractive hypothesis on evolutionary advantages of plant metal hyperaccumulation. Metals may compensate for a defect in biotic stress signaling in hyperaccumulators (metal-therapy) by either or both direct toxicity to pathogens and by metal-induced alternative signaling pathways. Jasmonic acid (JA) and salicylic acid (SA) are well-established components of stress signaling pathways. However, few studies evaluate the influence of metals on endogenous concentrations of these defense-related hormones. Even less data are available for metal hyperaccumulators. To further test the metal-therapy hypothesis we analyzed endogenous SA and JA concentrations in Noccaea praecox, a cadmium (Cd) hyperaccumulator. Plants treated or not with Cd, were exposed to mechanical wounding, expected to enhance JA signaling, and/or to infection by biotrophic fungus Erysiphe cruciferarum for triggering SA. JA and SA were analyzed in leaf extracts using LC-ESI(-)-MS/MS. Plants without Cd were more susceptible to fungal attack than plants receiving Cd. Cadmium alone tended to increase leaf SA but not JA. Either or both fungal attack and mechanical wounding decreased SA levels and enhanced JA in the Cd-rich leaves of plants exposed to Cd. High leaf Cd in N. praecox seems to hamper biotic-stress-induced SA, while triggering JA signaling in response to fungal attack and wounding. To the best of our knowledge, this is the first report on the endogenous JA and SA levels in a Cd-hyperaccumulator exposed to different biotic and abiotic stresses. Our results support the view of a defect in SA stress signaling in Cd hyperaccumulating N. praecox.
journal_name
Plant Cell Repjournal_title
Plant cell reportsauthors
Llugany M,Martin SR,Barceló J,Poschenrieder Cdoi
10.1007/s00299-013-1427-0subject
Has Abstractpub_date
2013-08-01 00:00:00pages
1243-9issue
8eissn
0721-7714issn
1432-203Xjournal_volume
32pub_type
杂志文章abstract::Modern powerful techniques in plant biotechnology have been developed in lilies (Lilium spp., Liliaceae) to propagate, improve and make new phenotypes. Reliable in vitro culture methods are available to multiply lilies rapidly and shorten breeding programs. Lilium is also an ideal model plant to study in vitro pollina...
journal_title:Plant cell reports
pub_type: 杂志文章,评审
doi:10.1007/s00299-016-2017-8
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abstract::The direct induction of adventitious shoots from leaf explants obtained from adult plants of Zhanhua winter jujube, an elite variety of Zizyphus jujuba Mill., is reported. The percentage of leaf explants producing shoots and the average number of shoots per explant were significantly improved when 10-day-old leaves we...
journal_title:Plant cell reports
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doi:10.1007/s00299-005-0920-5
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journal_title:Plant cell reports
pub_type: 杂志文章
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abstract::KEY MESSAGE : Rooting of Artemisia annua increases trichome size on leaves and helps drive the final steps of the biosynthesis of the sesquiterpene antimalarial drug, artemisinin. ...
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abstract::Plants were regenerated from leaf explants of Centrosema brasilianum cultured in vitro. Callus and buds were produced on Murashige and Skoog medium (MS), 0.8% agar, 0.1 mg/l NAA and 1 mg/l BAP. Regeneration of multiple shoots was achieved by transferring callus onto fresh medium containing 0.01 and 1 mg/l of NAA and B...
journal_title:Plant cell reports
pub_type: 杂志文章
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journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s002990050469
更新日期:1998-06-01 00:00:00
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journal_title:Plant cell reports
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doi:10.1007/BF00269250
更新日期:1986-04-01 00:00:00
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journal_title:Plant cell reports
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journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s002990000295
更新日期:2001-02-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00235072
更新日期:1992-06-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
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更新日期:1991-06-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-006-0130-9
更新日期:2006-07-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-010-0852-6
更新日期:2010-06-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-006-0161-2
更新日期:2006-10-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s002990050556
更新日期:1998-12-01 00:00:00
abstract::The effect of various inhibitors on differentiation (shoot morphogenesis) in callus cultures of Brassica, Datura and Nicotiana has been investigated. Hormone medium without any inhibitor (control), resulted in 6% shoot formation. Addition of inhibitors such as actinomycin D, cordycepin, abscisic acid, trigonelline and...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/BF00270062
更新日期:1990-03-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
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更新日期:2006-02-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
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更新日期:1997-05-01 00:00:00
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pub_type: 杂志文章
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journal_title:Plant cell reports
pub_type: 杂志文章
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journal_title:Plant cell reports
pub_type: 杂志文章
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journal_title:Plant cell reports
pub_type: 杂志文章
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更新日期:1986-02-01 00:00:00
abstract::Five varieties of durum wheat: Appulo, Ofanto, Latino, Creso, and Castello (Triticum durum Desf.) adapted to the semi-arid mediterranean environment have been tested for their in vitro response. Compact, embryogenic, highly regenerable calli originated from primary callus derived through proliferation of the scutellum...
journal_title:Plant cell reports
pub_type: 杂志文章
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abstract:KEY MESSAGE:A multi-parallel approach gauging the mass spectrometry-based metabolite fingerprinting coupled with bioactivity and pathway evaluations could serve as an efficacious tool for inferring plant taxonomic orders. Thirty-four species from three plant families, namely Cornaceae (7), Fabaceae (9), and Rosaceae (1...
journal_title:Plant cell reports
pub_type: 杂志文章
doi:10.1007/s00299-016-2006-y
更新日期:2016-09-01 00:00:00
abstract::Callus cultures of Vitis labruscana cv. Concord were initiated from both immature fruit and petiole tissue. Analysis revealed that the acid hydrolyzable precursors to β-damascenone, a compound important to the flavor of most grape species, were present in both callus types. Light and increased sucrose concentration we...
journal_title:Plant cell reports
pub_type: 杂志文章
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journal_title:Plant cell reports
pub_type: 杂志文章
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更新日期:2014-08-01 00:00:00
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journal_title:Plant cell reports
pub_type: 杂志文章
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更新日期:1998-06-01 00:00:00
abstract::Autoclaving is a standard procedure for sterilizing nutrient media for plant tissue cultures. Most tissue cultures are grown at pH 5.2 to 5.8 with pH adjustments being made prior to autoclaving. This paper reports that there are significant differences between initial pH levels and pH levels following autoclaving, par...
journal_title:Plant cell reports
pub_type: 杂志文章
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更新日期:1986-08-01 00:00:00