Anatomia foliar de soja infectada por Phakopsora pachyrhizi H. Sydow &amp; Sydow e tratadas com extratos vegetais

Mussury, Rosilda Mara; Betoni, Roseli; Silva, S. Ravi P.; Scalon, Silvana de Paula Quintão

doi:10.1590/s1516-05722012000100004

Cited by 4 publications

(5 citation statements)

References 8 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Anatomy and physiology of cattail as related to different ... defense against pathogens (Hansen et al, 2007;Mussury et al, 2012) and, its increased values on high plant population densities may be related to more efficient defense mechanisms. The increased epidermal thickness may be a response of T. angustifolia plants against the high population density.…”

Section: Spd (μM)mentioning

confidence: 99%

Anatomy and physiology of Cattail as related to different population densities

et al. 2015

View full text Add to dashboard Cite

-The objective of this work was to evaluate the effects of the population density of Typha angustifolia plants in the anatomical and physiological characteristics. Plants were collected from populations of high density (over 50% of colonization capacity) and low density (less than 50% of colonization capacity) and cultivated under controlled greenhouse conditions. Plants from both populations were grown in plastic trays containing 4 L of nutritive solution for 60 days. At the end of this period, the relative growth rate, leaf area ratio, net assimilatory rate, root/shoot ratio, leaf anatomy, root anatomy, and catalase and ascorbate peroxidase activities were evaluated. Plants from high density populations showed increased growth rate and root/shoot ratio. Low density populations showed higher values of stomatal index and density in leaves, as well as increased palisade parenchyma thickness. Root epidermis and exodermis thickness as well as the aerenchyma proportion of high density populations were reduced, these plants also showed increased vascular cylinder proportion. Only catalase activity was modified between the high and low density populations, showing increased values in low density populations. Therefore, different Typha angustifolia plants show differences in its anatomy and physiology related to its origins on high and low density conditions. High density population plants shows increased growth capacity related to lower apoplastic barriers in root and this may be related to increased nutrient uptake capacity.Keywords: macrophytes, Typha angustifolia, morphological plasticity, plant growth, ecological plant anatomy. RESUMO -O objetivo do trabalho foi avaliar os efeitos da origem em diferentes densidades populacionais de

show abstract

Section: Spd (μM)mentioning

confidence: 99%

Anatomy and physiology of Cattail as related to different population densities

et al. 2015

View full text Add to dashboard Cite

show abstract

“…There are several functions of trichomes in plants, and tector trichomes can prevent undue loss of water [29,30]. Another possible function, that of the cover trichomes, is in defense against pathogens [31,32].…”

Section: Plos Onementioning

confidence: 99%

“…Anatomical traits other than trichomes may also indicate plant adaptability to a variety of stimuli. For example, studies using living organisms and/or plant extracts as plant treatments may potentialize plant growth, as well as induce activation of the plant's defense mechanisms against pathogens [28,31]. Either way, several studies have reported anatomical changes in plant organs that are accompanied by adaptive responses.…”

Section: Plos Onementioning

confidence: 99%

Anatomical changes induced by isolates of Trichoderma spp. in soybean plants

et al. 2020

View full text Add to dashboard Cite

In the current work we evaluated the anatomical changes induced by T. harzianum and T. asperellum in two soybean cultivars, BRSGO Caiaponia and NA 5909 RG. Soybean production represents a growing market worldwide, and new methods aimed at increasing its productivity and yield are constantly being sought. Fungi of the genus Trichoderma have been widely used in agriculture as a promising alternative for the promotion of plant growth and for biological control of various pathogens. It is known that Trichoderma spp. colonize plant roots, but the anatomical changes that this fungus can cause are still less studied. Experiment was conducted in a greenhouse to collect leaves and soybean roots to perform analysis of growth parameters, enzymatic activity of defense-related enzymes and anatomical changes. It was observed that inoculation of Trichoderma spp. caused anatomical alterations, among them, increase in stomatal index at the abaxial leaf surface, thickness of the root cortex, thickness of adaxial epidermis, mean diameter of the vascular cylinder, thickness of the mesophyll, and thickness of the spongy parenchyma of the soybean plants. These results indicate that the alterations in these factors may be related to the process of plant resistance to pathogens, and better performance against adverse conditions. This study demonstrates that the anatomical study of plants is an important tool to show the effects that are induced by biological control agents.

show abstract

“…In this sense, the removal of the apical meristem influences the growth of soy plants, reducing the number of nodes of the main stem, the plant height and the insertion height of the first pod, especially when performed at 25 cm of height (Tancredi et al, 2006). The increase in diameter of the stem of soy plants is interesting, because the stem becomes more robust and can develop a greater amount of side branches making the plants more tolerant to lodging (Dias, Lisboa, Ferreira, & Rocha, 2021) The use of plant anatomy techniques has been applied in soybean culture with several objectives such as: a) the analysis of leaves infected by the fungus Phakopsora pachyrhizi (Mussury, Betoni, Silva, & Scalon, 2012), b) a comparative anatomical study in the leaves of different soybean cultivars (Lourenço, Vasconcelos Filho, Vasconcelos, & Campos, 2011), c) in the study of the impact of soil compaction on soybean root growth (Moraes et al, 2020), d) in the morpho-anatomical characterization of seeds with or without weathering damage (Pinheiro et al, 2021), e) in the study of anatomical alteration in the stem and root of soybean plants submitted to salt stress data (Silva, Batista, & Lobato, 2021), among others.…”

Section: Introductionmentioning

confidence: 99%

Anatomy of the main stem of soybean plants submitted to the removal of the stem apical meristem

Véras

Matsuo²,

Dias-Pereira³

et al. 2021

ASB J.

View full text Add to dashboard Cite

Some plant species allow the cutting of the apical meristem in order to assist activities of genetic improvement programs, among them is the soybean. The objective was to verify if the removal of the apical meristem of soybean plants induces any alteration in the stem anatomy, since it was verified that the removal of the apical meristem reduces the need for tutoring of the plants cultivated under greenhouse conditions. The experiment was conducted with plants of the BRSMG 752S cultivar and the treatments consisted of sections of the hypocotyl region of plants that had undergone apical meristem removal at the V2 development stage and of plants without apical meristem removal. The permanent slides were processed following the usual methodologies in plant anatomy. Descriptions and measurements of anatomical tissues were made for comparison between treatments. Plants with removal presented epidermis as a covering tissue until 20 days after the V2 development stage, while plants without removal of the apical meristem presented it until 30 days after V2. Periderm was observed only in plants with removal, and this feature was not evident in plants without removal until 30 days after V2. There was formation of secondary vascular tissues in the collections 30 days after removal (V2 stage). Thus, we conclude that the removal of the apical meristem accelerates the secondary development in hypocotyls of soybean plants grown under greenhouse conditions.

show abstract

Anatomia foliar de soja infectada por Phakopsora pachyrhizi H. Sydow & Sydow e tratadas com extratos vegetais

Cited by 4 publications

References 8 publications

Anatomy and physiology of Cattail as related to different population densities

Anatomy and physiology of Cattail as related to different population densities

Anatomical changes induced by isolates of Trichoderma spp. in soybean plants

Anatomy of the main stem of soybean plants submitted to the removal of the stem apical meristem

Contact Info

Product

Resources

About