Plant tumors: a hundred years of study

Додуева, И. Е.; Lebedeva, Maria A.; Kuznetsova, Kseniya A.; Gancheva, Maria S.; Paponova, Svetlana S.; Lutova, Ludmila L.

doi:10.1007/s00425-020-03375-5

Cited by 39 publications

(40 citation statements)

References 288 publications

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“…Their effect in most tropical forest species remains unknown. In practice, a quick survey cannot differentiate between a canker and any other swelling, deformity or gall (Dodueva et al, 2020). Abnormal woody growth, in any case, may represent a risk of mechanical failure or be a sign of infection or disease.…”

Section: Fungi (Presence/absence)mentioning

confidence: 99%

Tree death and damage: A standardized protocol for frequent surveys in tropical forests

Arellano

Zuleta

Davies

2021

J Vegetation Science

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Tree mortality drives changes in forest structure and dynamics, community composition, and carbon and nutrient cycles. Since tropical forests store a large fraction of terrestrial biomass and tree diversity, improved understanding of changing tree mortality and biomass loss rates is critical. Tropical tree mortality rates have been challenging to estimate due to low background rates of tree death, and high spatial and temporal heterogeneity. Furthermore, the causes of mortality remain unclear because many factors may be involved in individual tree death, and the rapid decomposition of wood in the tropics obscures evidence of possible causes of tree mortality. We present a field protocol to assess tree mortality in tropical forests. The protocol focuses on the rapid, repeatable and inexpensive assessment of individual tree death and damage. The protocol has been successfully tested with annual assessments of >62,000 stems in total in several ForestGEO plots in Asia and the Neotropics. Standardized methods for the assessment of tree death and biomass loss will advance understanding of the underlying causes and consequences of tree mortality.

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Section: Fungi (Presence/absence)mentioning

confidence: 99%

Tree death and damage: A standardized protocol for frequent surveys in tropical forests

Arellano

Zuleta

Davies

2021

J Vegetation Science

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“…Viruses, on the other hand, which cannot live on their own, depend on the machinery of living cells and generally keep their hosts alive as long as possible. Thus, viral infections are often latent in plants and rarely end in the death of the plant [ 20 , 21 ]. Viruses enter plants through wounds or cracks or get injected by aphids.…”

Section: Introductionmentioning

confidence: 99%

“…Viruses enter plants through wounds or cracks or get injected by aphids. The virus then spreads rapidly throughout the whole plant, multiplies inside its cells, and alters their metabolism which leads to impairments in growth and reproduction or death [ 20 , 22 , 23 , 24 , 25 ]. Considering the wide range, amount, and interactions of pathogens with plants it becomes obvious that plant pathogen interactions involve many complex pathways on the cellular level.…”

Section: Introductionmentioning

confidence: 99%

Subcellular Roles of Glutathione in Mediating Plant Defense during Biotic Stress

Zechmann

2020

Plants

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Glutathione and reactive oxygen species (ROS) play important roles, within different cell compartments, in activating plant defense and the development of resistance. In mitochondria, the accumulation of ROS and the change of glutathione towards its oxidized state leads to mitochondrial dysfunction, activates cell death, and triggers resistance. The accumulation of glutathione in chloroplasts and peroxisomes at the early stages of plant pathogen interactions is related to increased tolerance and resistance. The collapse of the antioxidative system in these two cell compartments at the later stages leads to cell death through retrograde signaling. The cytosol can be considered to be the switchboard during biotic stress where glutathione is synthesized, equally distributed to, and collected from different cell compartments. Changes in the redox state of glutathione and the accumulation of ROS in the cytosol during biotic stress can initiate the activation of defense genes in nuclei through pathways that involve salicylic acid, jasmonic acid, auxins, and abscisic acid. This review dissects the roles of glutathione in individual organelles during compatible and incompatible bacterial, fungal, and viral diseases in plants and explores the subcelluar roles of ROS, glutathione, ascorbate, and related enzymes in the development of resistance.

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“…Certain plant parasites and symbionts infect host-plant tissues and spend the majority of their lives within their host (Compant et al, 2010;Hassani et al, 2018). Such manipulation of host development has evolved independently several times and can be found in multiple classes of organisms, including bacteria, fungi, nematodes, mites, and insects (Barash and Manulis-Sasson, 2009;Dodueva et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Chemotactic Host-Finding Strategies of Plant Endoparasites and Endophytes

2020

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Plants interact with microorganisms in the environment during all stages of their development and in most of their organs. These interactions can be either beneficial or detrimental for the plant and may be transient or long-term. In extreme cases, microorganisms become endoparastic or endophytic and permanently reside within a plant, while the host plant undergoes developmental reprogramming and produces new tissues or organs as a response to the invasion. Events at the cellular and molecular level following infection have been extensively described, however the mechanisms of how these microorganisms locate their plant hosts via chemotaxis remain largely unknown. In this review, we summarize recent findings concerning the signalling molecules that regulate chemotaxis of endoparasitic/endophytic bacteria, fungi, and nematodes. In particular, we will focus on the molecules secreted by plants that are most likely to act as guidance cues for microorganisms. These compounds are found in a wide range of plant species and show a variety of secondary effects. Interestingly, these compounds show different attraction potencies depending on the species of the invading organism, suggesting that cues perceived in the soil may be more complex than anticipated. However, what the cognate receptors are for these attractants, as well as the mechanism of how these attractants influence these organisms, remain important outstanding questions. Host-targeting marks the first step of plant-microorganism interactions, therefore understanding the signalling molecules involved in this step plays a key role in understanding these interactions as a whole.

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Plant tumors: a hundred years of study

Cited by 39 publications

References 288 publications

Tree death and damage: A standardized protocol for frequent surveys in tropical forests

Tree death and damage: A standardized protocol for frequent surveys in tropical forests

Subcellular Roles of Glutathione in Mediating Plant Defense during Biotic Stress

Chemotactic Host-Finding Strategies of Plant Endoparasites and Endophytes

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