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Larrán, S.; Mónaco, Cecilia Inés; Alippi, H.

doi:10.1023/a:1016670000288

Cited by 61 publications

(7 citation statements)

References 17 publications

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“…Ten sequence groups were detected in the palm roots with eight sequences identified from DNA cloning strategy (Alternaria alternata, three different Alternaria sp., Curvularia sp., and Pythium sp., and two types of uncultivable Pleosporales) and two from cultivation strategy (Fusarium equiseti and Fusarium sp.). Most of these fungi have been already reported as endophytes in other plants (Cao et al, 2002;Gond et al, 2007;Khan et al, 2007), including wheat (Larran et al, 2002a), soybeans (Larran et al, 2002b), bananas (Pocasangre et al, 2000;Cao et al, 2002), and tomatoes (Larran et al, 2001). Several endophytic fungi have recently been described from oil palms (Rungjindamai et al, 2008), such as Trametes elegans and Fomitopsis pinicola.…”

Section: Discussionmentioning

confidence: 99%

Fungal diversity in adult date palm (Phoenix dactylifera L.) revealed by culture-dependent and culture-independent approaches

Chobba¹,

Elleuch²,

Ayadi

et al. 2013

J. Zhejiang Univ. Sci. B

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Endophytic flora plays a vital role in the colonization and survival of host plants, especially in harsh environments, such as arid regions. This flora may, however, contain pathogenic species responsible for various troublesome host diseases. The present study is aimed at investigating the diversity of both cultivable and non-cultivable endophytic fungal floras in the internal tissues (roots and leaves) of Tunisian date palm trees (Phoenix dactylifera). Accordingly, 13 isolates from both root and leaf samples, exhibiting distinct colony morphology, were selected from potato dextrose agar (PDA) medium and identified by a sequence match search wherein their 18S-28S internal transcribed spacer (ITS) sequences were compared to those available in public databases. These findings revealed that the cultivable root and leaf isolates fell into two groups, namely Nectriaceae and Pleosporaceae. Additionally, total DNA from palm roots and leaves was further extracted and ITS fragments were amplified. Restriction fragment length polymorphism (RFLP) analysis of the ITS from 200 fungal clones (leaves: 100; roots: 100) using HaeIII restriction enzyme revealed 13 distinct patterns that were further sequenced and led to the identification of Alternaria, Cladosporium, Davidiella (Cladosporium teleomorph), Pythium, Curvularia, and uncharacterized fungal endophytes. Both approaches confirmed that while the roots were predominantly colonized by Fusaria (members of the Nectriaceae family), the leaves were essentially colonized by Alternaria (members of the Pleosporaceae family). Overall, the findings of the present study constitute, to the authors' knowledge, the first extensive report on the diversity of endophytic fungal flora associated with date palm trees (P. dactylifera).

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Section: Discussionmentioning

confidence: 99%

Fungal diversity in adult date palm (Phoenix dactylifera L.) revealed by culture-dependent and culture-independent approaches

Chobba¹,

Elleuch²,

Ayadi

et al. 2013

J. Zhejiang Univ. Sci. B

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“…These studies have now been extended to other plant and endophyte species [35][36][37][38][39][40][41][42][43][44][45]. Up to now endophytes belonging to numerous families and orders have been found in almost any vascular plant species studied and even in ferns and algae [3,[46][47], most being ascomycetes and imperfect fungi.…”

Section: Endophyte Type and Classificationmentioning

confidence: 99%

Fungal Endophytes and their Role in Plant Protection

Giménez

Cabrera²,

Reina

et al. 2007

COC

105

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Endophytes (fungal and bacterial organisms) have attracted great interest over the past few years because their presence benefits the host plant (development and defence) and they are a source of secondary metabolites of potential interest and thus play an important role in the regulation of plant communities and their herbivores. There are an increasing number of reports on their identification and on the production of secondary metabolites. Their role in plant-pathogen and plant-insect interactions is receiving increasing attention because of their potential use in pest control, however, little is known about their physiology and the regulation processes of the plant-endophyte interaction.

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“…inhabiting the inner tissue of plants without causing apparent disease. Tomato is hosting both endophytic fungi and endophytic bacteria, some of them showing the ability to promote seed germination and protect tomato plants from pathogens (Larran et al, 2001; Pozo et al, 2002; Shittu et al, 2009; Xu et al, 2014). Furthermore, since endophytic mycorrhizal fungi contain a large amount of bacteria in the ectomycorrhizal root tips (Sbrana et al, 2002), it might spread endophytic bacteria while colonizing the tomato.…”

Section: Discussionmentioning

confidence: 99%

Host-Parasite-Bacteria Triangle: The Microbiome of the Parasitic Weed Phelipanche aegyptiaca and Tomato-Solanum lycopersicum (Mill.) as a Host

et al. 2017

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Broomrapes (Phelipanche/Orobanche spp.) are holoparasitic plants that subsist on the roots of a variety of agricultural crops, establishing direct connections with the host vascular system. This connection allows for the exchange of various substances and a possible exchange of endophytic microorganisms that inhabit the internal tissues of both plants. To shed some light on bacterial interactions occurring between the parasitic Phelipanche aegyptiaca and its host tomato, we characterized the endophytic composition in the parasite during the parasitization process and ascertained if these changes were accompanied by changes to endophytes in the host root. Endophyte communities of the parasitic weed were significantly different from that of the non-parasitized tomato root but no significant differences were observed between the parasite and its host after parasitization, suggesting the occurrence of bacterial exchange between these two plants. Moreover, the P. aegyptiaca endophytic community composition showed a clear shift from gram negative to gram-positive bacteria at different developmental stages of the parasite life cycle. To examine possible functions of the endophytic bacteria in both the host and the parasite plants, a number of unique bacterial candidates were isolated and characterized. Results showed that a Pseudomonas strain PhelS10, originating from the tomato roots, suppressed approximately 80% of P. aegyptiaca seed germination and significantly reduced P. aegyptiaca parasitism. The information gleaned in the present study regarding the endophytic microbial communities in this unique ecological system of two plants connected by their vascular system, highlights the potential of exploiting alternative environmentally friendly approaches for parasitic weed control.

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Cited by 61 publications

References 17 publications

Fungal diversity in adult date palm (Phoenix dactylifera L.) revealed by culture-dependent and culture-independent approaches

Fungal diversity in adult date palm (Phoenix dactylifera L.) revealed by culture-dependent and culture-independent approaches

Fungal Endophytes and their Role in Plant Protection

Host-Parasite-Bacteria Triangle: The Microbiome of the Parasitic Weed Phelipanche aegyptiaca and Tomato-Solanum lycopersicum (Mill.) as a Host

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