Microorganisms in Plant Growth and Development: Roles in Abiotic Stress Tolerance and Secondary Metabolites Secretion

Microorganisms, Год журнала: 2022, Номер 10(8), С. 1528 - 1528

Опубликована: Июль 28, 2022

Crops aimed at feeding an exponentially growing population are often exposed to a variety of harsh environmental factors. Although plants have evolved ways adjusting their metabolism and some also been engineered tolerate stressful environments, there is still shortage food supply. An alternative approach explore the possibility using rhizosphere microorganisms in mitigation abiotic stress hopefully improve production. Several studies shown that rhizobacteria mycorrhizae organisms can help tolerance by enhancing plant growth; stimulating production phytohormones, siderophores, solubilizing phosphates; lowering ethylene levels; upregulating expression dehydration response antioxidant genes. This article shows secretion secondary metabolites as additional mechanism employed against stress. The understanding these mechanisms will efficacy plant-growth-promoting microorganisms.

Язык: Английский

---

Do all fungi have ancestors with endophytic lifestyles?

Fungal Diversity, Год журнала: 2023, Номер 125(1), С. 73 - 98

Опубликована: Март 16, 2023

Язык: Английский

---

Trichoderma and the Plant Heritable Priming Responses

Journal of Fungi, Год журнала: 2021, Номер 7(4), С. 318 - 318

Опубликована: Апрель 19, 2021

There is no doubt that Trichoderma an inhabitant of the rhizosphere plays important role in how plants interact with environment. Beyond production cell wall degrading enzymes and metabolites, spp. can protect by inducing faster stronger immune responses, a mechanism known as priming, which involves enhanced accumulation dormant cellular proteins function intracellular signal amplification. One example these mitogen-activated protein kinases (MAPK) are triggered rise cytosolic calcium levels redox changes following stressful challenge. Transcription factors such WRKYs, MYBs, MYCs, play roles priming they act regulatory nodes transcriptional network systemic defence after stress recognition. In terms long-lasting may be involved epigenetic regulation through histone modifications replacements, DNA (hypo)methylation, RNA-directed methylation (RdDM). Inheritance marks for resistance growth promotion, without compromising level plant's offspring to abiotic or biotic stresses, seems interesting path fully explored.

Язык: Английский

---

Endophytic Fungal Terpenoids: Natural Role and Bioactivities

Microorganisms, Год журнала: 2022, Номер 10(2), С. 339 - 339

Опубликована: Фев. 1, 2022

Endophytic fungi are a highly diverse group of that intermittently colonize all plants without causing symptoms the disease. They sense and respond to physiological environmental changes their host plant microbiome. The inter-organism interactions largely driven by chemical networks mediated specialized metabolites. balance these complex leads healthy strong plants. strains have particular machinery produce plethora secondary metabolites with variety bioactivities unknown functions in an ecological niche. Terpenoids play key role endophytism represent important source bioactive molecules for human health agriculture. In this review, we describe endophytic health, fungal terpenoids multiple interactions, recently reported from endophytes, mainly used traditional medicine, as well algae mangroves. Additionally, highlight producers chemotherapeutic terpenoids, initially discovered Despite advances understanding endophytism, still much learn field. study role, evolution provide opportunity better applications

Язык: Английский

---

An insight into endophytic antimicrobial compounds: an updated analysis

Plant Biotechnology Reports, Год журнала: 2023, Номер 17(4), С. 427 - 457

Опубликована: Март 14, 2023

Язык: Английский

---

Therapeutic compounds from medicinal plant endophytes: molecular and metabolic adaptations

Journal of Applied Microbiology, Год журнала: 2023, Номер 134(4)

Опубликована: Апрель 1, 2023

Abstract During the last few decades, endophytes have attracted increased attention due to their ability produce a plethora of bioactive secondary metabolites. These compounds not only help outcompete other plant-associated microbes or pathogens through quorum sensing, but also enable them surmount plant immune system. However, very studies described interlink between various biochemical and molecular factors host-microbe interactions involved in production these pharmacological The peculiar mechanisms by which modulate physiology metabolism elicitors, as well how they use transitional primary nutrients precursors for synthesis new enhancing existing metabolites, are still less understood. This study thus attempts address aspects such metabolites used therapeutics light ecological significance, adaptation, intercommunity interactions. Our explores adapt specific host environment, especially medicinal plants that with potential simultaneously gene expression biosynthesis We discuss differential fungal bacterial hosts.

Язык: Английский

---

Endophytic fungi: Unravelling plant-endophyte interaction and the multifaceted role of fungal endophytes in stress amelioration

Plant Physiology and Biochemistry, Год журнала: 2023, Номер 206, С. 108174 - 108174

Опубликована: Ноя. 17, 2023

Язык: Английский

---

A review on endophytic fungi: a potent reservoir of bioactive metabolites with special emphasis on blight disease management

Archives of Microbiology, Год журнала: 2024, Номер 206(3)

Опубликована: Фев. 28, 2024

Язык: Английский

---

Advancement in the molecular perspective of plant-endophytic interaction to mitigate drought stress in plants

Frontiers in Microbiology, Год журнала: 2022, Номер 13

Опубликована: Сен. 2, 2022

Change in global climate has started to show its effect the form of extremes temperatures and water scarcity which is bound impact adversely food security near future. In current review we discuss drought on plants highlight ability endophytes, microbes that inhabit asymptomatically, confer stress tolerance their host. For this first describe symbiotic association between plant endophytes then focus molecular physiological strategies/mechanisms adopted by these tolerance. These include root alteration, osmotic adjustment, ROS scavenging, detoxification, production phytohormones, promoting growth under adverse conditions. The further elaborates how omics-based techniques have advanced our understanding basis endophyte mediated host plant. Detailed analysis whole genome sequences followed comparative genomics facilitates identification genes involved endophyte-host interaction while functional unveils microbial targets can be exploited for enhancing Thus, an amalgamation with other sustainable agricultural practices seems appeasing approach produce climate-resilient crops.

Язык: Английский

---

Isolation, identification, and antibacterial evaluation of endophytic fungi from Gannan navel orange

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Июнь 15, 2023

Gannan navel orange is a famous brand in China but the isolation of its endophytic fungi was rarely reported. In this study, total 54 strains were successfully isolated from pulp, peel, twig, and leaf orange; they identified to belong 17 species 12 genera. All these fermented using potato-dextrose agar (PDA) medium, their secondary metabolites then extracted with ethyl acetate (EtOAc). The antibacterial assays Escherichia coli (E. coli), methicillin-resistant Staphylococcus aureus (MRSA), Xanthomonas citri subsp. (Xcc) also performed for EtOAc extracts strains. As result, both Geotrichum sp. (gc-1-127-30) Diaporthe biconispora (gc-1-128-79) demonstrated significant activities against Xcc, MIC value extract Colletotrichum gloeosporioides MRSA low 62.5 μg/mL. Moreover, chemical components sp., biconispora, Annulohypoxylon atroroseum primarily investigated, led 24 compounds involving new botryane sesquiterpene. Among products, compound 2 showed inhibitory toward SA, MRSA, E. coli, Xcc values 12.5, 3.1, 125, 12.5 μg/mL, respectively. This study revealed that high potency produce effects.

Язык: Английский

---