Comparative physiological and transcriptomic analyses provide induction resistance mechanisms of Bacillus tequilensis against Colletotrichum fructicola in Camellia oleifera.

Bacillus tequilensis DZY 6715 was isolated from healthy leaves in Camellia oleifera, and the strain DZY 6715 significantly inhibited anthracnose disease resulting from Colletotrichum fructicola in C. oleifera, besides, its associated mechanism of disease resistance was explored. B.

First report of causing root rot on in China.

Eucalyptus cinerea is an evergreen tree in the Myrtaceae. It is native to southern and eastern New South Wales and northern and eastern Victoria, Australia. It was introduced into China in the 1980s (Silva et al.

First report of 'Candidatus Phytoplasma asteris' associated with witches'-broom disease of Pinus yunnanensis in China.

Pinus yunnanensis is an evergreen tree belonging to Pinaceae. The species is distributed in the east of Tibet, southwest of Sichuan, southwest of Yunnan, southwest of Guizhou and northwest of Guangxi. It is an indigenous and pioneer tree species for barren mountain afforestation in southwest China.

First report of 'Candidatus Phytoplasma asteris' associated with witches'-broom disease of Cinnamomum camphora in China.

Camphor tree (Cinnamomum camphora) has a wide distribution in the world and is mainly distributed in the South and southwest in China. It can be used as both a wood and a medicine, with high value in industry, medicine, and ecology. In May 2022, it was observed that the approximately ten to fifteen years old Camphor trees were exhibiting witches'-broom, small leaf morphology and chlorosis, and leaf drop in Panzhihua City, Sichuan Province, China.

Antifungal action and induction of resistance by sp. strain YYC 155 against for control of anthracnose disease in .

Anthracnose disease caused by is a serious disease that can afflict . Biological control is a rapidly growing approach for the management of plant diseases. In this study, we investigated the bio-control efficiency and the defense responses of an endophytic strain YYC 155, which was isolated from the root nodules of the against anthracnose disease, caused by in YYC 155 exhibited significant inhibitory activity against anthracnose disease, caused by in YYC 155 can secrete extracellular hydrolases, such as chitinase and β-1, 3-glucanase, which produce lipopeptides that are antimicrobial and forms strong biofilms.

Effects of repeated drought stress on the physiological characteristics and lipid metabolism of Bombax ceiba L. during subsequent drought and heat stresses.

Background: Trees of Bombax ceiba L. could produce a large number of viable seeds in the dry-hot valleys. However, the seedling regeneration of the species is difficult in these areas as mild drought often occur repeatedly which might be followed by heat stress.

Development and characterization of novel EST-SSR markers for (Euphorbiaceae).

Premise Of The Study: The first set of expressed sequence tag-simple sequence repeat (EST-SSR) markers were developed and characterized for (Euphorbiaceae), a traditional medicinal plant endemic to northern China, to explore the effects of recent habitat fragmentation on the genetic diversity and structure of this species.

Methods And Results: In this study, a total of 18 novel polymorphic microsatellite (EST-SSR) markers were developed for using high-throughput transcriptome sequencing. Analysis of 24 individuals of from four natural populations revealed their robust polymorphic reliability.

RNA-seq Reveals Complicated Transcriptomic Responses to Drought Stress in a Nonmodel Tropic Plant, Bombax ceiba L.

High-throughput transcriptome provides an unbiased approach for understanding the genetic basis and gene functions in response to different conditions. Here we sequenced RNA-seq libraries derived from a Bombax ceiba L. system under a controlled experiment.

Development and characterization of EST-SSR markers in Bombax ceiba (Malvaceae).

Premise Of The Study: Bombax ceiba (Malvaceae), commonly known as silk cotton tree, is a multipurpose tree species of tropical forests. Novel expressed sequence tag-simple sequence repeat (EST-SSR) markers were developed and characterized for the species using transcriptome analysis.

Methods And Results: A total of 33 new EST-SSR markers were developed for B.

[Kapok capsule formation and fiber development process in Yuanjiang dry-hot valley].

This study explored the capsule formation and fiber development process of kapok which is a tree in Yuanjiang dry-hot valleys (DHV) using the methods of paraffin section and scanning electron microscopy. The result showed that formation process of kapok capsule can be divided into four stages: the capsule formation within 5 days after anthesis (DAA), the capsule mass period from 5 to 35 DAA, the capsule dehydration period from 35 to 50 DAA, and the capsule bursting period after 50 DAA. The kapok fiber was developed via endocarp cells differentiation (0-2 DAA), swelling (2-5 DAA), bulging (5-10 DAA), fiber elongating (10-40 DAA), and divorcing from pericarp (40-50 DAA).

Mycorrhizas alter nitrogen acquisition by the terrestrial orchid Cymbidium goeringii.

Background And Aims: Orchid mycorrhizas exhibit a unique type of mycorrhizal symbiosis that occurs between fungi and plants of the family Orchidaceae. In general, the roots of orchids are typically coarse compared with those of other plant species, leading to a considerably low surface area to volume ratio. As a result, orchids are often ill-adapted for direct nutrient acquisition from the soil and so mycorrhizal associations are important.

[Limiting factors of waste land revegetation in indigenous zinc smelting areas of western Guizhou].

With indigenous zinc smelting waste residue, contaminated soil and background soil as test substrates, a pot experiment was conducted to study the growth characteristics of Lolium perenne and Trifolium pretense on these substrates. The results showed that the major limiting factors of waste land revegetation in indigenous zinc smelting areas of western Guizhou were the salt-alkali stress and the lower contents of organic matter, total N, available N and total K. The heavy metals in waste residue had a high concentration, but their available forms only occupied a small proportion, with low toxicity to plant but having potential harmful risk.