Cytokinin content and water relations of ‘Cabernet Sauvignon’ grapevine exposed to drought stress

Νικολάου, Νικόλαος; Koukourikou, M.; Angelopoulos, K.; Karagiannidis, N.

doi:10.1080/14620316.2003.11511576

Cited by 18 publications

(13 citation statements)

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“…In fact, AMF are known to exert a certain control over transpiration, allowing plants to maintain high levels of WUE (Navarro-Ródenas et al 2013). Such an increase, which is congruent with other studies of grapevine hosts (Nikolaou et al 2003), may also have accounted for the enhanced growth of plants colonized with Glomus species, most probably by enhancing CO 2 fixation (Aroca et al 2013).…”

Section: Discussionsupporting

confidence: 89%

Effectiveness and persistence of arbuscular mycorrhizal fungi on the physiology, nutrient uptake and yield of Crimson seedless grapevine

et al. 2014

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SUMMARYIn the present study, carried out in South-eastern Spain, a commercial arbuscular mycorrhizal fungus (AMF; Glomus iranicum var. tenuihypharum sp. nova) was introduced through drip irrigation to inoculate Crimson grapevines. Their effects on the physiological and nutritional activity were evaluated for 2 years (2011–12). Additionally, during the second year of experimentation, the persistence of mycorrhizae on the grapevine and their effects were innovatively analysed.The AMF satisfactorily colonized the Crimson grapevine roots, improved the plants water status, induced an improvement in the photosynthetic performance that increased the water use efficiency, promoted the uptake of phosphorus (P), potassium (K) and calcium (Ca) and led to a mobilization of starch reserves in the apex in winter, which was possibly responsible for enhancing root development. Moreover, inoculated plants had significantly increased yield and improved quality of grapes, which led to early grape maturation. Overall, the persistent effect of AMF during the second year produced similar positive effects, although to a lesser extent, to those obtained in the inoculated treatment.The results found in the present study show that this AMF application technique can be recommended for sustainable agriculture in arid and semi-arid areas. Moreover, as a result of the competition with the native mycorrhizae, periodic monitoring of the percentage of mycorrhizal colonization and re-inoculation in order to obtain all the positive effects evidenced in the inoculated treatment is recommended.

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Section: Discussionsupporting

confidence: 89%

Effectiveness and persistence of arbuscular mycorrhizal fungi on the physiology, nutrient uptake and yield of Crimson seedless grapevine

et al. 2014

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“…In fact, AMF are known to exert a degree of control over transpiration, allowing plants to maintain high levels of WUE [80]. Such an increase, which agrees with other studies in vines [81], may also have accounted for the enhanced growth of plants colonized with Glomus species, most probably as a result of enhanced CO 2 fixation [49].…”

Section: Discussionsupporting

confidence: 87%

Application of Arbuscular Mycorrhizae Glomus iranicum var. tenuihypharum var. nova in Intensive Agriculture: A Study Case

Martín¹,

Molina²,

Nicolás³

et al. 2017

JAST-B

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Abstract:Intensive agriculture contributes to a decrease in microbial biomass and crop yields, while accelerating soil degradation. Arbuscular mycorrhizae associations have direct benefits for plant nutrition, and may be considered a useful tool in modern agriculture. Notwithstanding the widespread knowledge of these benefits, their use in intensive farming systems has until now been ineffectual, because most mycorrhizal species have low tolerance toward high concentrations of nutrients and are poorly adapted to the soil and/or mycorrhizal functioning. The aim of this work was to test the efficacy of an arbuscular mycorrhizal (AM) fungus, Glomus iranicum var. tenuihypharum on lettuce and table grape crops in different intensive farming systems. The variables studied were root colonization percentage, external mycelium concentration, gas exchange, photosynthetic activity, root starch concentration and plant nutrition. The main finding was that the fungus is tolerant of a wide range of soil pH values, high salinity levels and abundant external mycelium. In lettuce, it produced significant increases in plant physiological activity and productivity (10%-15%); and in table grapes, increases of 12%-45% in yield were achieved for more than three years in Crimson variety, and significant increases in fruit cluster weight, color uniformity and Brix (°Bx). The AM species is protected by two patents and is a component of MycoUp, MycoUp Activ, Resid HC and Resid MG, whose commercial application has spread to more than 30 countries, with increments in crop yields of 8%-45% in lines as varied as leaf vegetables, berries, fruit, olives, grapes, greenhouse crops and cereals.

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“…Frequently, these commercial inoculants consist of a single or few AM fungal isolates grown in plant culture or greenhouse conditions with annual grasses or forbs ( Gianinazzi and Vosátka, 2004 ), hence they might not establish on woody grapevines that have different ecosystem preferences ( Holland et al, 2018 ). It is well established that under controlled conditions AMF inoculation of grapevines promotes increased growth ( Linderman and Davis, 2001 ), drought tolerance ( Nikolaou et al, 2003 ), and nutrient uptake ( Karagiannidis et al, 2007 ). Moreover, AMF protect grapevines grown in controlled conditions against pathogens through stimulation of key genes of the phenylpropanoid biosynthesis in leaves ( Bruisson et al, 2016 ) and inhibit their transmission by impairing the growth of nematode vectors in roots and their reproduction in soils ( Hao et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Arbuscular Mycrorrhizal Fungi Inoculation and Applied Water Amounts Modulate the Response of Young Grapevines to Mild Water Stress in a Hyper-Arid Season

Torres

Kurtural

2021

Front. Plant Sci.

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Several factors may affect the success of a replanting vineyard. Given the current environmental conditions, an optimized irrigation schedule would still be one of the most desirable tools to improve crop productivity and fruit quality. On the other hand, the symbiosis of grapevines with arbuscular mycorrhizal fungi (AMF) is a key component of the vineyard production systems improving the vine growth, nutrient uptake, and berry quality. The aim of this study was to characterize the response of Merlot grapevines to AMF inoculation and two different irrigation amounts in their first productive year. The experiment was conducted on 2-year Merlot grapevines inoculated with AMF (I) or not-inoculated (NI) and subjected to two irrigation amounts, full irrigated (FI), where the amount of water was enough to maintain expansive growth and half irrigated (HI) where plants received the half of the amount of water of FI plants. Water status, gas exchange parameters, growth, mineral content, berry composition, and mycorrhizal colonization were monitored through the season. AMF inoculation improved the grapevine vegetative growth, water status, and photosynthetic activity, especially when vines were subjected to HI irrigation; however, no effect was observed on the leaf mineral content, must pH, total soluble solids, or total acidity. The main effects were observed on the flavonoid composition of berry skins at harvest. Irrigation amounts and mycorrhizal inoculation modified cyanidin and peonidin derivatives whereas flavonol composition was mainly affected by irrigation treatments. A strong relationship between the mycorrhizal colonization rate of roots and total quercetins, cyanidins, and peonidins was found. Findings support the use of a mycorrhizal inoculum and a better water management in a hyper-arid growing season; however, these results may be affected by edaphoclimatic characteristics and living microbiota in vineyard soils, which should be taken into account before making the decision of inoculating the vineyard.

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Cytokinin content and water relations of ‘Cabernet Sauvignon’ grapevine exposed to drought stress

Cited by 18 publications

References 0 publications

Effectiveness and persistence of arbuscular mycorrhizal fungi on the physiology, nutrient uptake and yield of Crimson seedless grapevine

Effectiveness and persistence of arbuscular mycorrhizal fungi on the physiology, nutrient uptake and yield of Crimson seedless grapevine

Application of Arbuscular Mycorrhizae Glomus iranicum var. tenuihypharum var. nova in Intensive Agriculture: A Study Case

Arbuscular Mycrorrhizal Fungi Inoculation and Applied Water Amounts Modulate the Response of Young Grapevines to Mild Water Stress in a Hyper-Arid Season

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