Influence of Chronic Partial Defoliation of Larch by Casebearer on the Physiological Parameters of the Stem

Polyakova, G. G.; Pashenova, N. V.; Senashova, V. A.

doi:10.1134/s1062359020010100

Cited by 2 publications

(5 citation statements)

References 17 publications

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“…Our preliminary investigations show that the phloem defense response evolves after inoculation of mycelium extract as well as live mycelium [8][9][10]24]. A phloem lesion was formed.…”

Section: The Stem Phloem Defense Response (Stem Lesion Test)mentioning

confidence: 94%

“…We applied the stem lesion test developed in our laboratory [8][9][10]. This test is based on the well-known method of stem inoculation with live mycelium of an ophiostomatoid fungus and induction of conifer plant defense response [23][24][25][26].…”

Section: The Stem Phloem Defense Response (Stem Lesion Test)mentioning

confidence: 99%

“…After an exhaustive extraction with 70% ethanol, the supernatant was evaporated to dryness. The residue dissolved in water (5 mL) was dialyzed against 4 liters of water for 2 days with a 4-fold change of water at 4-6 ° С [10].…”

Section: Preparation Of the Fungal Extractmentioning

confidence: 99%

“…The current study elaborates a method for assessing environmental toxicity using pine stands as bioindicators. Our previous investigations [8][9][10] show the promise of a stem lesion test for assessing the impact of environmental factors on the vigor state of conifer trees. The stem lesion test applies characteristics of the stem phloem defense response after inoculation with the mycelial extract of ophiostomatoid fungi, as well as live mycelium.…”

Section: Introductionmentioning

confidence: 99%

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Pine Stands as Bioindicators: Justification for Air Toxicity Monitoring in an Industrial Metropolis

et al. 2020

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Five permanent sample plots (SPs; 200–250 trees per plot) were established in middle-aged high-grade suburban pine stands near the industrial city of Krasnoyarsk, Siberia, Russia. Needle damage, inventory parameters of the stands, and the defense response of the stem phloem were evaluated annually for the years 2002–2019 and attributed to acute or chronic toxic exposures (creeping fire or industrial pollutants, respectively). The results form a basis for using trees as bioindicators. A newly elaborated stem lesion test was formed from a hypothesis on the upward sugar transport for the regeneration of an injured crown, based on Eschrich’s model of bidirectional sugar transport in the phloem. The formation of a phloem lesion was induced by inoculation of the stem with a mycelial extract of the ophiostomatoid fungus Ceratocystis laricicola. The lesion length and its shift relative to the inoculation hole were measured. An increase in the length of needles at early stages of stand weakening by pollutants was found to correspond to the hormesis model (Selye’s adaptation syndrome). A possibility of assessing the chronology of pollutant toxicity and the duration of the recovery period after creeping fire was shown.

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“…Our preliminary investigations show that the phloem defense response evolves after inoculation of mycelium extract as well as live mycelium [8][9][10]24]. A phloem lesion was formed.…”

Section: The Stem Phloem Defense Response (Stem Lesion Test)mentioning

confidence: 94%

Section: The Stem Phloem Defense Response (Stem Lesion Test)mentioning

confidence: 99%

Section: Preparation Of the Fungal Extractmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pine Stands as Bioindicators: Justification for Air Toxicity Monitoring in an Industrial Metropolis

et al. 2020

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“…The early seasonal defoliation of trees is particularly hard on the organism of fruit trees, so the radial growth of trees can be significantly reduced for several years after the outbreak of insect pests. This reduction in tree growth facilitates the establishment of pathogenic fungi, bacteria, and insect pests on the tree, which, in turn, can further desiccate the trees [16,17]. For example, the outbreak of apple moths in 1998-2003 in the Dzhungar Alatau and in 2008-2011 in the Trans-Ili Alatau endangered priceless Sievers apple trees [18].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Biological and Ecological Characteristics of Sievers Apple Tree Pests in Trans-Ili Alatau, Kazakhstan

2023

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This research aimed to evaluate the occurrence of three significant pests, namely the apple ermine moth (Y. malinellus Zell.), the rosebush leaf roller (A. rosana L.), and the hawthorn leaf roller (C. crataegana Hb.), commonly found in Sievers apple trees. The research was conducted within the Ili-Alatau state national natural park, focusing on populations of the Sievers apple tree on the northern slope of the Trans-Ili Alatau mountain range. The study revealed varying pest abundances across different monitoring sites within the park. The apple ermine moth (Y. malinellus Zell.) exhibited lower occurrence compared to A. rosana L. and C. crataegana Hb. The Aksai and Kuznetsov Gorge populations of the Sievers apple tree showed higher susceptibility to the ermine moth. The rosebush leaf roller (A. rosana L.) was dominant in the Aksai and Oi-Zhailau populations, while the hawthorn leaf roller (C. crataegana Hb.) exhibited higher abundance in several monitoring sites. Phenological studies revealed that Y. malinellus Zell. have a life cycle of one year, the developmental stages of A. rosana L. last for approximately 9–10 months, and the life cycle of C. crataegana Hb. is also one year. The data obtained allowed us to assess pest status, which will hopefully help in developing protective measures for suppressing their outbreak in the region.

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Influence of Chronic Partial Defoliation of Larch by Casebearer on the Physiological Parameters of the Stem

Cited by 2 publications

References 17 publications

Pine Stands as Bioindicators: Justification for Air Toxicity Monitoring in an Industrial Metropolis

Pine Stands as Bioindicators: Justification for Air Toxicity Monitoring in an Industrial Metropolis

Assessment of Biological and Ecological Characteristics of Sievers Apple Tree Pests in Trans-Ili Alatau, Kazakhstan

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